Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.25
Eunice Wong, E. Kupriyanova, P. Hutchings, M. Capa, V. Radashevsky, H. A. Hove
Wong, E., Kupriyanova, E.K., Hutchings, P., Capa, M., Radashevsky, V.I. and ten Hove, H.A. 2014. A graphically illustrated glossary of polychaete terminology: invasive species of Sabellidae, Serpulidae and Spionidae. Memoirs of Museum Victoria 71: 327–342. A well-illustrated glossary supports the study of polychaete anatomy and systematics, as well as aiding species identification, a need that emerged within the shipping and aquaculture industries over recent decades. Sabellidae, Serpulidae and Spionidae are polychaete families that most often include species that are translocated globally through ship fouling, ballast water or aquaculture trade. Accurate identifications are crucial since these translocations have significant ecological and commercial implications and also for phylogenetic and other biological studies. Using digital illustrations of specimens (deposited predominantly at the Australian Museum in Sydney), a glossary has been developed for these three families with the aim of standardising terminologies. Complete-focus images were generated with Helicon Focus 5.3 Pro software from multiple image layers. The definitions have been explained specific to families and illustrated with these images, thus creating the first comprehensive, digitally illustrated glossary of polychaete terminology.
{"title":"A graphically illustrated glossary of polychaete terminology: invasive species of Sabellidae, Serpulidae and Spionidae","authors":"Eunice Wong, E. Kupriyanova, P. Hutchings, M. Capa, V. Radashevsky, H. A. Hove","doi":"10.24199/J.MMV.2014.71.25","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.25","url":null,"abstract":"Wong, E., Kupriyanova, E.K., Hutchings, P., Capa, M., Radashevsky, V.I. and ten Hove, H.A. 2014. A graphically illustrated glossary of polychaete terminology: invasive species of Sabellidae, Serpulidae and Spionidae. Memoirs of Museum Victoria 71: 327–342. A well-illustrated glossary supports the study of polychaete anatomy and systematics, as well as aiding species identification, a need that emerged within the shipping and aquaculture industries over recent decades. Sabellidae, Serpulidae and Spionidae are polychaete families that most often include species that are translocated globally through ship fouling, ballast water or aquaculture trade. Accurate identifications are crucial since these translocations have significant ecological and commercial implications and also for phylogenetic and other biological studies. Using digital illustrations of specimens (deposited predominantly at the Australian Museum in Sydney), a glossary has been developed for these three families with the aim of standardising terminologies. Complete-focus images were generated with Helicon Focus 5.3 Pro software from multiple image layers. The definitions have been explained specific to families and illustrated with these images, thus creating the first comprehensive, digitally illustrated glossary of polychaete terminology.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"1955 1","pages":"327-342"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91271348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.22
R. Sardà, L. Serrano, C. Labrune, J. Gil, D. March, J. Amouroux, S. Taboada, P. Bonifácio, A. Grémare
Sarda, R., Serrano, L., Labrune, C., Gil, J., March, D., Amouroux, J.M., Taboada, S., Bonifacio, P. and Gremare, A. 2014. Shallow-water polychaete assemblages in the northwestern Mediterranean Sea and its possible use in the evaluation of good environmental state. Memoirs of Museum Victoria 71: 289–301. Forty-four shore-normal transects along the Northwestern Mediterranean coast between the mouth of the Rhone River (France) and Valencia City (Spain) were sampled during the REDIT-I (September 1998, [R1]) and REDIT-II (December 1999, [R2]) campaigns. Polychaete distribution patterns on shallow littoral fine sands (10 to 50 m water depths) were analyzed at a regional scale. A total of 359 species of polychaetes were identified which represents 38% of all polychaete species recorded in the western Mediterranean. Four main soft-bottom communities were identified from the samples in the area: Littoral Fine Sands, Littoral Sandy Mud, Terrigenous Coastal Mud and Detritic Sand. Predominantly sandy environments were characterized by Ditrupa arietina and Owenia fusiformis while Lumbrineris latreilli, Hilbigneris gracilis and Sternaspis scutata were numerically dominant in muddy environments. Biological diversity assessments at different temporal and spatial scales are required by the European Marine Strategy Framework Directive (2008/56/EC) in accordance with criteria and methodological standards of Good Environmental Status (GEnS). Selected indicators for descriptors are explored based on this mesoscale assessment.
{"title":"Shallow-water polychaete assemblages in the northwestern Mediterranean Sea and its possible use in the evaluation of good environmental state","authors":"R. Sardà, L. Serrano, C. Labrune, J. Gil, D. March, J. Amouroux, S. Taboada, P. Bonifácio, A. Grémare","doi":"10.24199/J.MMV.2014.71.22","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.22","url":null,"abstract":"Sarda, R., Serrano, L., Labrune, C., Gil, J., March, D., Amouroux, J.M., Taboada, S., Bonifacio, P. and Gremare, A. 2014. Shallow-water polychaete assemblages in the northwestern Mediterranean Sea and its possible use in the evaluation of good environmental state. Memoirs of Museum Victoria 71: 289–301. Forty-four shore-normal transects along the Northwestern Mediterranean coast between the mouth of the Rhone River (France) and Valencia City (Spain) were sampled during the REDIT-I (September 1998, [R1]) and REDIT-II (December 1999, [R2]) campaigns. Polychaete distribution patterns on shallow littoral fine sands (10 to 50 m water depths) were analyzed at a regional scale. A total of 359 species of polychaetes were identified which represents 38% of all polychaete species recorded in the western Mediterranean. Four main soft-bottom communities were identified from the samples in the area: Littoral Fine Sands, Littoral Sandy Mud, Terrigenous Coastal Mud and Detritic Sand. Predominantly sandy environments were characterized by Ditrupa arietina and Owenia fusiformis while Lumbrineris latreilli, Hilbigneris gracilis and Sternaspis scutata were numerically dominant in muddy environments. Biological diversity assessments at different temporal and spatial scales are required by the European Marine Strategy Framework Directive (2008/56/EC) in accordance with criteria and methodological standards of Good Environmental Status (GEnS). Selected indicators for descriptors are explored based on this mesoscale assessment.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"39 1","pages":"289-301"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84543725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.09
J. Hartley
Hartley, J.P. 2014. A review of the occurrence and ecology of dense populations of Ditrupa arietina (Polychaeta: Serpulidae). Memoirs of Museum Victoria 71: 85–95. Dense populations of the free-living serpulid Ditrupa arietina were first recorded to the west and north of the Shetland Isles in the 1920s and have since been reported from the Celtic and North Seas, the Armorican shelf, the Mediterranean and the Azores. These dense populations (of many thousands per square metre) numerically dominate the benthic fauna, and the tubes provide sites of attachment for a range of other species. Vacated tubes are also occupied by other animals, and tube fragments can contribute significantly to biogenic carbonate sediments, both Recent and fossil. Dense Ditrupa populations have been the subject of detailed autecological research over the last 15 years, but in spite of the apparent ecological importance of the species, it is not reflected in the European Nature Information System (EUNIS) or other North-east (NE) Atlantic habitat classifications. This paper provides a synthesis of the environmental conditions where high densities of Ditrupa have been found, with new data from seabed samples and photos. Ditrupa appears to occupy different habitats in the NE Atlantic and the Mediterranean, and studies of its morphology and genetics are needed to determine if there is a taxonomic basis to this ecological separation. Although the evidence is sparse, it is concluded that, in the NE Atlantic, dense populations of Ditrupa are found in areas where the seabed is periodically disturbed by internal wave action. European and other habitat classification schemes require revision to reflect the areas of occurrence and benthic effects of internal waves.
{"title":"A review of the occurrence and ecology of dense populations of Ditrupa arietina (Polychaeta: Serpulidae)","authors":"J. Hartley","doi":"10.24199/J.MMV.2014.71.09","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.09","url":null,"abstract":"Hartley, J.P. 2014. A review of the occurrence and ecology of dense populations of Ditrupa arietina (Polychaeta: Serpulidae). Memoirs of Museum Victoria 71: 85–95. Dense populations of the free-living serpulid Ditrupa arietina were first recorded to the west and north of the Shetland Isles in the 1920s and have since been reported from the Celtic and North Seas, the Armorican shelf, the Mediterranean and the Azores. These dense populations (of many thousands per square metre) numerically dominate the benthic fauna, and the tubes provide sites of attachment for a range of other species. Vacated tubes are also occupied by other animals, and tube fragments can contribute significantly to biogenic carbonate sediments, both Recent and fossil. Dense Ditrupa populations have been the subject of detailed autecological research over the last 15 years, but in spite of the apparent ecological importance of the species, it is not reflected in the European Nature Information System (EUNIS) or other North-east (NE) Atlantic habitat classifications. This paper provides a synthesis of the environmental conditions where high densities of Ditrupa have been found, with new data from seabed samples and photos. Ditrupa appears to occupy different habitats in the NE Atlantic and the Mediterranean, and studies of its morphology and genetics are needed to determine if there is a taxonomic basis to this ecological separation. Although the evidence is sparse, it is concluded that, in the NE Atlantic, dense populations of Ditrupa are found in areas where the seabed is periodically disturbed by internal wave action. European and other habitat classification schemes require revision to reflect the areas of occurrence and benthic effects of internal waves.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"326 1","pages":"85-95"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76901234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.19
G. Purschke, C. Bleidorn, Torsten H. Struck
Purschke, G., Bleidorn, C. and Struck, T. 2014. Systematics, evolution and phylogeny of Annelida – a morphological perspective . Memoirs of Museum Victoria 71: 247–269. Annelida, traditionally divided into Polychaeta and Clitellata, is an evolutionary ancient and ecologically important group today usually considered to be monophyletic. However, there is a long debate regarding the in-group relationships as well as the direction of evolutionary changes within the group. This debate is correlated to the extraordinary evolutionary diversity of this group. Although annelids may generally be characterised as organisms with multiple repetitions of identically organised segments and usually bearing certain other characters such as a collagenous cuticle, chitinous chaetae or nuchal organs, none of these are present in every subgroup. This is even true for the annelid key character, segmentation. The first morphology-based cladistic analyses of polychaetes showed Polychaeta and Clitellata as sister groups. The former were divided into Scolecida and Palpata comprising Aciculata and Canalipalpata. This systematisation definitely replaced the old concept of dividing polychaetes into Errantia and Sedentaria, whereas the group Archiannelida had already been abandoned. The main critics came from a contradicting hypothesis relying on scenario based on plausibility considerations regarding Clitellata as highly derived annelids nesting within polychaetes and rendering the latter paraphyletic. In this hypothesis the absences of typical polychaete characters were regarded as losses rather than as primary absences. However, to date attempts to unambiguously identify the sister group of Clitellata on the basis of morphological characters have failed. Thus, two hypotheses on the last common annelid ancestor have been put forward either being an oligochaete-like burrowing animal or a parapodia-bearing epibenthic worm. These attempts to understand the major transitions in annelid evolution are reviewed and discussed in the light of new morphological evidence such as photoreceptor cell and eye evolution as well as the evolution of the nervous system and musculature. We also discuss the plausibility of these scenarios with regard to recent advances in molecular phylogenetic analyses.
Purschke, G.， Bleidorn, C.和Struck, T. 2014。环节动物的系统学、进化和系统发育——形态学的观点。维多利亚博物馆回忆录71:247-269。环节动物，传统上分为多毛纲和cliitellata，是一个古老的进化和生态重要的群体，今天通常被认为是单系的。然而，关于群体内关系以及群体内进化变化的方向存在着长期的争论。这场争论与这个群体非同寻常的进化多样性有关。虽然环节动物通常可以被描述为具有相同组织部分的多个重复的生物体，并且通常具有某些其他特征，例如胶原角质层，几丁质毛羽或颈器官，但这些特征在每个亚群中都不存在。这甚至适用于环节动物的关键特征——分割。首次基于形态学的多毛纲分支分析表明，多毛纲和cliitellata是姐妹类群。前者分为头齿科和齿齿科，包括针叶科和齿齿科。这种系统划分无疑取代了将多毛纲划分为Errantia和Sedentaria的旧概念，而Archiannelida已经被抛弃了。主要的批评来自于一个矛盾的假设，它依赖于基于似是而非的考虑，认为Clitellata是高度衍生的环节动物，在多毛纲动物中筑巢，并使后者成为副纲动物。在这一假设中，典型多毛类性状的缺失被认为是损失，而不是主要缺失。然而，迄今为止，试图在形态特征的基础上明确地识别cliitellata的姐妹群都失败了。因此，关于最后的共同环节动物祖先提出了两种假设，要么是一种寡毛类穴居动物，要么是一种副足底栖蠕虫。这些试图理解环节动物进化中的主要转变的尝试，在新的形态学证据，如光感受器细胞和眼睛的进化，以及神经系统和肌肉组织的进化，进行了回顾和讨论。我们还讨论了这些情景的合理性，关于分子系统发育分析的最新进展。
{"title":"Systematics, evolution and phylogeny of Annelida – a morphological perspective","authors":"G. Purschke, C. Bleidorn, Torsten H. Struck","doi":"10.24199/J.MMV.2014.71.19","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.19","url":null,"abstract":"Purschke, G., Bleidorn, C. and Struck, T. 2014. Systematics, evolution and phylogeny of Annelida – a morphological perspective . Memoirs of Museum Victoria 71: 247–269. Annelida, traditionally divided into Polychaeta and Clitellata, is an evolutionary ancient and ecologically important group today usually considered to be monophyletic. However, there is a long debate regarding the in-group relationships as well as the direction of evolutionary changes within the group. This debate is correlated to the extraordinary evolutionary diversity of this group. Although annelids may generally be characterised as organisms with multiple repetitions of identically organised segments and usually bearing certain other characters such as a collagenous cuticle, chitinous chaetae or nuchal organs, none of these are present in every subgroup. This is even true for the annelid key character, segmentation. The first morphology-based cladistic analyses of polychaetes showed Polychaeta and Clitellata as sister groups. The former were divided into Scolecida and Palpata comprising Aciculata and Canalipalpata. This systematisation definitely replaced the old concept of dividing polychaetes into Errantia and Sedentaria, whereas the group Archiannelida had already been abandoned. The main critics came from a contradicting hypothesis relying on scenario based on plausibility considerations regarding Clitellata as highly derived annelids nesting within polychaetes and rendering the latter paraphyletic. In this hypothesis the absences of typical polychaete characters were regarded as losses rather than as primary absences. However, to date attempts to unambiguously identify the sister group of Clitellata on the basis of morphological characters have failed. Thus, two hypotheses on the last common annelid ancestor have been put forward either being an oligochaete-like burrowing animal or a parapodia-bearing epibenthic worm. These attempts to understand the major transitions in annelid evolution are reviewed and discussed in the light of new morphological evidence such as photoreceptor cell and eye evolution as well as the evolution of the nervous system and musculature. We also discuss the plausibility of these scenarios with regard to recent advances in molecular phylogenetic analyses.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"7 1","pages":"247-269"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91077817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.72.02
P. O’Loughlin, M. Mackenzie, D. Vandenspiegel
A new genus in the sub-family Semperiellinae is described: Triasemperia O Loughlin. Six new species of dendrochirotids are described with O Loughlin as author: Actinocucumis solanderi, Cladolabes arafurus, Globosita elnazae, Massinium bonapartum, Massinium keesingi, Triasemperia stola. Genera Actinocucumis Ludwig, Cladolabes Brandt, Globosita Cherbonnier and Massinium Samyn and Thandar are discussed. Species listed by Heding and Panning as synonyms of Actinocucumis typica Ludwig are raised out of synonymy: Actinocucumis cornus (Heding); Actinocucumis difficilis Bell; Actinocucumis longipedes Clark; Pseudocucumis quinquangularis Sluiter; Actinocucumis simplex (Sluiter). Actinocucumis donnani Pearson is incertae sedis. We provide a table of some distinguishing morphological characters for species of Globosita, and a key for distinguishing the species of Massinium.
{"title":"New dendrochirotid sea cucumbers from northern Australia (Echinodermata: Holothuroidea: Dendrochirotida)","authors":"P. O’Loughlin, M. Mackenzie, D. Vandenspiegel","doi":"10.24199/J.MMV.2014.72.02","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.72.02","url":null,"abstract":"A new genus in the sub-family Semperiellinae is described: Triasemperia O Loughlin. Six new species of dendrochirotids are described with O Loughlin as author: Actinocucumis solanderi, Cladolabes arafurus, Globosita elnazae, Massinium bonapartum, Massinium keesingi, Triasemperia stola. Genera Actinocucumis Ludwig, Cladolabes Brandt, Globosita Cherbonnier and Massinium Samyn and Thandar are discussed. Species listed by Heding and Panning as synonyms of Actinocucumis typica Ludwig are raised out of synonymy: Actinocucumis cornus (Heding); Actinocucumis difficilis Bell; Actinocucumis longipedes Clark; Pseudocucumis quinquangularis Sluiter; Actinocucumis simplex (Sluiter). Actinocucumis donnani Pearson is incertae sedis. We provide a table of some distinguishing morphological characters for species of Globosita, and a key for distinguishing the species of Massinium.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"23 1","pages":"5-23"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84676170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.72.06
G. Theischinger, I. Endersby
Theischinger, G. and Endersby, I. 2014. Australian Dragonfly (Odonata) Larvae: Descriptive history and identification. Memoirs of the Museum of Victoria XX: 73-120. To improve the reliability of identification for Australian larval Odonata, morphological and geographic information is summarised for all species. All known references that contain information on characters useful for identification of larvae are presented in an annotated checklist. For polytypic genera information is provided to clarify whether each species can already, or cannot yet, be distinguished on morphological characters, and whether and under which conditions geographic locality is sufficient to make a diagnosis. For each species the year of original description and of first description of the larva, level of confidence in current identifications, and supportive information, are included in tabular form. Habitus illustrations of generally final instar larvae or exuviae for more than 70% of the Australian dragonfly genera are presented.
Theischinger, G. and Endersby, 2014。澳洲蜻蜓(蜻蜓科)幼虫:描述历史和鉴定。《维多利亚博物馆回忆录》XX: 73-120。为了提高澳大利亚齿蛙幼虫鉴定的可靠性，对所有种类的形态和地理信息进行了汇总。所有已知的包含对幼虫识别有用的特征信息的参考文献都列在附有注释的清单中。对于多型属，提供的信息是为了澄清每个物种是否已经可以或还不能在形态特征上进行区分，以及地理位置是否以及在何种条件下足以进行诊断。对于每个物种，原始描述的年份和幼虫的第一次描述，对当前鉴定的信任程度，以及支持性信息，都以表格形式包括在内。本文介绍了澳大利亚70%以上的蜻蜓属的终末幼虫或蜕皮的习性图。
{"title":"Australian Dragonfly (Odonata) Larvae: Descriptive history and identification","authors":"G. Theischinger, I. Endersby","doi":"10.24199/J.MMV.2014.72.06","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.72.06","url":null,"abstract":"Theischinger, G. and Endersby, I. 2014. Australian Dragonfly (Odonata) Larvae: Descriptive history and identification. Memoirs of the Museum of Victoria XX: 73-120. To improve the reliability of identification for Australian larval Odonata, morphological and geographic information is summarised for all species. All known references that contain information on characters useful for identification of larvae are presented in an annotated checklist. For polytypic genera information is provided to clarify whether each species can already, or cannot yet, be distinguished on morphological characters, and whether and under which conditions geographic locality is sufficient to make a diagnosis. For each species the year of original description and of first description of the larva, level of confidence in current identifications, and supportive information, are included in tabular form. Habitus illustrations of generally final instar larvae or exuviae for more than 70% of the Australian dragonfly genera are presented.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"99 1","pages":"73-120"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74632732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.72.07
D. Staples
Staples D.A. 2014. A reassessment of the Pycnogonid Genus Stylopallene (Arthropoda, Callipallenidae) with description of a new genus. Memoirs of the Museum of Victoria 72: 121-129. The genus Stylopallene comprising only four species is reviewed. All species are recorded from Australia, predominantly from the southern and south-eastern coastlines in association with arborescent bryozoans. Sexual dimorphism in the scape segments is recognized in the genus for the first time. The status of Stylopallene dorsospinum is re-evaluated and assigned to the new genus Bamberene. A diagnosis of the new genus is provided along with additional images to complement existing figures.
{"title":"A reassessment of the pycnogonid genus Stylopallene (Arthropoda, Callipallenidae) with description of a new genus","authors":"D. Staples","doi":"10.24199/J.MMV.2014.72.07","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.72.07","url":null,"abstract":"Staples D.A. 2014. A reassessment of the Pycnogonid Genus Stylopallene (Arthropoda, Callipallenidae) with description of a new genus. Memoirs of the Museum of Victoria 72: 121-129. The genus Stylopallene comprising only four species is reviewed. All species are recorded from Australia, predominantly from the southern and south-eastern coastlines in association with arborescent bryozoans. Sexual dimorphism in the scape segments is recognized in the genus for the first time. The status of Stylopallene dorsospinum is re-evaluated and assigned to the new genus Bamberene. A diagnosis of the new genus is provided along with additional images to complement existing figures.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"1 1","pages":"121-129"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79027347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.01
H. Abe, W. Sato-Okoshi, G. Nishitani, Y. Endo
H.,�Sato-Okoshi,�W.,�Nishitani,�G.�andEndo,�Y.�2014.�Verticaldistributionandmigrationofplanktonicpolychaete� larvae in Onagawa Bay, north-eastern Japan. Memoirs of Museum Victoria�71:�1-9. The planktonic larvae of polychaetes are one of the most numerous and diverse groups in coastal zooplankton; however, little is known about their larval dynamics and the factors that affect their vertical distribution. We investigated the vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan, particularly focusingonthedominantspionidlarvae.�Intotal,�14�familiesofplanktonicpolychaetelarvaeand�14�speciesorgeneraof� spionidlarvaewereidentifiedduringourstudy.�Theirdensitygreatlyfluctuatedaccordingtoseasonanddepth,�withthe� polychaetelarvaegenerallydistributedinthelowerlayersofthewatercolumn.�Furthermore,�trendsinverticaldistribution� ofspionidlarvaevariedbetweenspecies.�Inwinterandspring,�larvaeofPolydora onagawaensis were the most prevalent, withawiderangeinverticaldistribution.�Insummerandautumn,�larvaeofPseudopolydora achaeta and Prionospio spp. were the most prevalent spionid larvae and were primarily distributed in the lower layers of the water column. Trends in larval vertical distribution varied as a result of differences in adult habitat; these variations would enable the larvae to efficientlyrecruitintotheirappropriateadulthabitats.�Spionidlarvaedidnotshowdielverticalmigration.�Larvaeoftwo� spionid taxa, Pseudopolydora achaeta and Prionospio spp., exhibited tidal vertical migration, with larvae appearing to avoiddispersalbymovingtoslower-flowingdeeperwaterduringfloodandebbtides.�Althoughmanypreviousstudies� assume that, because of their limited swimming capacity, polychaete larvae are passively dispersed within the water column, this study indicates that polychaete larvae can control their vertical distribution to some extent, and this small- scale vertical migration may be important as a retention mechanism for polychaete larvae.
{"title":"Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan","authors":"H. Abe, W. Sato-Okoshi, G. Nishitani, Y. Endo","doi":"10.24199/J.MMV.2014.71.01","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.01","url":null,"abstract":"H.,�Sato-Okoshi,�W.,�Nishitani,�G.�andEndo,�Y.�2014.�Verticaldistributionandmigrationofplanktonicpolychaete� larvae in Onagawa Bay, north-eastern Japan. Memoirs of Museum Victoria�71:�1-9. The planktonic larvae of polychaetes are one of the most numerous and diverse groups in coastal zooplankton; however, little is known about their larval dynamics and the factors that affect their vertical distribution. We investigated the vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan, particularly focusingonthedominantspionidlarvae.�Intotal,�14�familiesofplanktonicpolychaetelarvaeand�14�speciesorgeneraof� spionidlarvaewereidentifiedduringourstudy.�Theirdensitygreatlyfluctuatedaccordingtoseasonanddepth,�withthe� polychaetelarvaegenerallydistributedinthelowerlayersofthewatercolumn.�Furthermore,�trendsinverticaldistribution� ofspionidlarvaevariedbetweenspecies.�Inwinterandspring,�larvaeofPolydora onagawaensis were the most prevalent, withawiderangeinverticaldistribution.�Insummerandautumn,�larvaeofPseudopolydora achaeta and Prionospio spp. were the most prevalent spionid larvae and were primarily distributed in the lower layers of the water column. Trends in larval vertical distribution varied as a result of differences in adult habitat; these variations would enable the larvae to efficientlyrecruitintotheirappropriateadulthabitats.�Spionidlarvaedidnotshowdielverticalmigration.�Larvaeoftwo� spionid taxa, Pseudopolydora achaeta and Prionospio spp., exhibited tidal vertical migration, with larvae appearing to avoiddispersalbymovingtoslower-flowingdeeperwaterduringfloodandebbtides.�Althoughmanypreviousstudies� assume that, because of their limited swimming capacity, polychaete larvae are passively dispersed within the water column, this study indicates that polychaete larvae can control their vertical distribution to some extent, and this small- scale vertical migration may be important as a retention mechanism for polychaete larvae.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"24 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76016756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.06
Larisse Faroni-Perez, F. Zara
Faroni-Perez, L. and Zara, F.J. 2014. Oogenesis in Phragmatopoma (Polychaeta: Sabellariidae): Evidence for morphological distinction among geographically remote populations. Memoirs of Museum Victoria 71: 53–65. The Southwest Atlantic Ocean sand-reef building polychaete, Phragmatopoma lapidosa, was recently synonymised with Phragmatopoma caudata based on morphological characters. This study uses histochemical and ultrastructural procedures to describe oogenesis in Phragmatopoma caudata from the Southwest (SW) Atlantic and make a comparison with previously published data for the Northwest Atlantic (NW) forms. In the South American worms, the exposed ovary consists of simple groups of oogonia attached to blood vessels, unlike the NW Atlantic worms in which only the proliferative and previtellogenesis phases of the oocytes are associated with blood vessels. In SW Atlantic worms, the oocytes float in the coelom during the vitellogenic phase. We discovered several heterogeneous features (e.g., cell extensions, amoeboid cells, ovary capsule, active uptake of material from blood vessels and egg envelope) that can be used to distinguish between North and South Hemisphere populations of P. caudata. In light of the observed divergence between worms from these separated populations, our findings support reproductive plasticity. The present study reveals biodiversity within sand-reef making sandcastle worms.
{"title":"Oogenesis in Phragmatopoma (Polychaeta: Sabellariidae): Evidence for morphological distinction among geographically remote populations","authors":"Larisse Faroni-Perez, F. Zara","doi":"10.24199/J.MMV.2014.71.06","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.06","url":null,"abstract":"Faroni-Perez, L. and Zara, F.J. 2014. Oogenesis in Phragmatopoma (Polychaeta: Sabellariidae): Evidence for morphological distinction among geographically remote populations. Memoirs of Museum Victoria 71: 53–65. The Southwest Atlantic Ocean sand-reef building polychaete, Phragmatopoma lapidosa, was recently synonymised with Phragmatopoma caudata based on morphological characters. This study uses histochemical and ultrastructural procedures to describe oogenesis in Phragmatopoma caudata from the Southwest (SW) Atlantic and make a comparison with previously published data for the Northwest Atlantic (NW) forms. In the South American worms, the exposed ovary consists of simple groups of oogonia attached to blood vessels, unlike the NW Atlantic worms in which only the proliferative and previtellogenesis phases of the oocytes are associated with blood vessels. In SW Atlantic worms, the oocytes float in the coelom during the vitellogenic phase. We discovered several heterogeneous features (e.g., cell extensions, amoeboid cells, ovary capsule, active uptake of material from blood vessels and egg envelope) that can be used to distinguish between North and South Hemisphere populations of P. caudata. In light of the observed divergence between worms from these separated populations, our findings support reproductive plasticity. The present study reveals biodiversity within sand-reef making sandcastle worms.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"15 1","pages":"53-65"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90074951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-01-01DOI: 10.24199/J.MMV.2014.71.02
T. Alvestad, J. Kongsrud, Katrine Kongshavn
Alvestad, T., Kongsrud, J.A. and Kongshavn, K. 2014. Ampharete undecima, a new deep-sea ampharetid (Annelida, Polychaeta) from the Norwegian Sea. Memoirs of Museum Victoria 71: 11–19. Ampharete undecima, a new deep-sea polychaete belonging to the family Ampharetidae, is described from slope depths in the Norwegian Sea. The new species is of small size, up to 5 mm long and 0.5 mm wide, and thus it may have been overlooked in previous studies. It is shown to be a common and widespread species in the Nordic Seas in depths ranging from 600–1650 m. The new species is referred to the genus Ampharete based on characteristics of the prostomium, the presence of buccal tentacles with secondary pinnulae, four pairs of branchiae arising from fused segment II + III, 12 thoracic uncinigerous segments, and a single pair of nephridial papillae on segment IV. The new species differs from all known species of Ampharete in having 11 rather than 12–28 abdominal uncinigerous segments.
Alvestad, T.， Kongsrud, J.A.和Kongshavn, K. 2014。挪威海一种新的深海两栖动物(环节动物，多毛纲)。维多利亚博物馆回忆录71:11-19。在挪威海的斜坡深处发现了一种新的深海多毛纲两栖动物，属于两栖科。新物种体型较小，长5毫米，宽0.5毫米，因此在以前的研究中可能被忽视。它被证明是在600-1650米深的北欧海中常见和广泛分布的物种。该新种被归为amphirete属，依据是其原口的特征、具有次级尖的颊触须的存在、由融合节II + III产生的四对分支、12个胸钩节和IV节上的一对肾乳头。该新种与所有已知的amphirete种的不同之处在于它有11个而不是12 - 28个腹钩节。
{"title":"Ampharete undecima, a new deep-sea ampharetid (Annelida, Polychaeta) from the Norwegian Sea","authors":"T. Alvestad, J. Kongsrud, Katrine Kongshavn","doi":"10.24199/J.MMV.2014.71.02","DOIUrl":"https://doi.org/10.24199/J.MMV.2014.71.02","url":null,"abstract":"Alvestad, T., Kongsrud, J.A. and Kongshavn, K. 2014. Ampharete undecima, a new deep-sea ampharetid (Annelida, Polychaeta) from the Norwegian Sea. Memoirs of Museum Victoria 71: 11–19. Ampharete undecima, a new deep-sea polychaete belonging to the family Ampharetidae, is described from slope depths in the Norwegian Sea. The new species is of small size, up to 5 mm long and 0.5 mm wide, and thus it may have been overlooked in previous studies. It is shown to be a common and widespread species in the Nordic Seas in depths ranging from 600–1650 m. The new species is referred to the genus Ampharete based on characteristics of the prostomium, the presence of buccal tentacles with secondary pinnulae, four pairs of branchiae arising from fused segment II + III, 12 thoracic uncinigerous segments, and a single pair of nephridial papillae on segment IV. The new species differs from all known species of Ampharete in having 11 rather than 12–28 abdominal uncinigerous segments.","PeriodicalId":53647,"journal":{"name":"Memoirs of Museum Victoria","volume":"10 1","pages":"11-19"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79254280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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