Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2068112
H. Fukuda, Hiroshi Ishikawa, Soma Ito, T. Haga
ABSTRACT A new species of tellinid, Nitidotellina hachiensis, is described from Japan. The shell of this species is characterised by a pair of strong keels that run from the beaks to the posterior end and forms a prominent posterior notch. The recent individuals are found only in the Seto Inland Sea (Okayama, Hiroshima, Yamaguchi and Ehime prefectures), while the one fossil record so far known is from the Chibanian (middle Pleistocene) Toyohashi Formation in Aichi Prefecture, central Honshū. Living individuals are uncommon and mainly found living in sandy mud bottoms from the low tide line down to the subtidal zone in the inner parts of large bays. It can be regarded as endangered due to the recent habitat loss and water pollution of inner bay environments.
{"title":"Nitidotellina hachiensis n. sp. (Bivalvia: Tellinidae) from the Seto Inland Sea, between Honshū and Shikoku, western Japan","authors":"H. Fukuda, Hiroshi Ishikawa, Soma Ito, T. Haga","doi":"10.1080/13235818.2022.2068112","DOIUrl":"https://doi.org/10.1080/13235818.2022.2068112","url":null,"abstract":"ABSTRACT A new species of tellinid, Nitidotellina hachiensis, is described from Japan. The shell of this species is characterised by a pair of strong keels that run from the beaks to the posterior end and forms a prominent posterior notch. The recent individuals are found only in the Seto Inland Sea (Okayama, Hiroshima, Yamaguchi and Ehime prefectures), while the one fossil record so far known is from the Chibanian (middle Pleistocene) Toyohashi Formation in Aichi Prefecture, central Honshū. Living individuals are uncommon and mainly found living in sandy mud bottoms from the low tide line down to the subtidal zone in the inner parts of large bays. It can be regarded as endangered due to the recent habitat loss and water pollution of inner bay environments.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"115 - 127"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48652524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2073651
M. Lebata-Ramos, Cleresa S. Dionela, E. Solis, Jonas P. Mediavilla, Rema C. Sibonga, Schedar Rose M. Novilla
ABSTRACT This study determined the seasonality of Magallana bilineata spat settlement in a natural oyster bed and established surface texture preference of competent larvae by comparing the numbers of spat settling on the smooth and rough surfaces of ceramic tiles over a period of 31 months. This will guide farmers when to deploy cultches to maximise spat harvest. Regardless of tile orientation, spat numbers were significantly higher on the rough side (129.07 ± 9.3 m−2) than on the smooth side (66.95 ± 7.0 m−2). Spat collection was highest in March, June and July in each of 2015, 2016 and 2017. There was no significant correlation between the number of spat settling in each month with temperature, salinity, pH, dissolved oxygen (DO), sulphide, phosphate, nitrate, nitrite and ammonia concentrations, plankton density measured at deployment and retrieval of tiles, except for DO during deployment. The only significant correlations with mean shell length (SL) were with DO and ammonia during tile retrieval. Mean SL did not significantly differ between tile orientations and surfaces but differed between months, being highest in August 2015 and August 2016. From these results, it is best to deploy roughened cultches in this particular area in March, June and July.
{"title":"Settlement of oyster Magallana bilineata (Röding, 1798) spat in the natural environment: seasonality and substrate texture preference","authors":"M. Lebata-Ramos, Cleresa S. Dionela, E. Solis, Jonas P. Mediavilla, Rema C. Sibonga, Schedar Rose M. Novilla","doi":"10.1080/13235818.2022.2073651","DOIUrl":"https://doi.org/10.1080/13235818.2022.2073651","url":null,"abstract":"ABSTRACT This study determined the seasonality of Magallana bilineata spat settlement in a natural oyster bed and established surface texture preference of competent larvae by comparing the numbers of spat settling on the smooth and rough surfaces of ceramic tiles over a period of 31 months. This will guide farmers when to deploy cultches to maximise spat harvest. Regardless of tile orientation, spat numbers were significantly higher on the rough side (129.07 ± 9.3 m−2) than on the smooth side (66.95 ± 7.0 m−2). Spat collection was highest in March, June and July in each of 2015, 2016 and 2017. There was no significant correlation between the number of spat settling in each month with temperature, salinity, pH, dissolved oxygen (DO), sulphide, phosphate, nitrate, nitrite and ammonia concentrations, plankton density measured at deployment and retrieval of tiles, except for DO during deployment. The only significant correlations with mean shell length (SL) were with DO and ammonia during tile retrieval. Mean SL did not significantly differ between tile orientations and surfaces but differed between months, being highest in August 2015 and August 2016. From these results, it is best to deploy roughened cultches in this particular area in March, June and July.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"135 - 145"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43666698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2075081
A. Bhosale, T. Thackeray, Omkar V. Yadav
ABSTRACT We here describe a new species of the streptaxid snail genus Haploptychius from the northern Western Ghats of Maharashtra, which is the third member of the genus from India. Haploptychius sahyadriensis n. sp. is distinguished from the other Indian and South-East Asian Haploptychius sp. in having suboblique-heliciform shell, low spire and presence of one strong parietal lamella. The new species has unique genital anatomy in having a long penis with a penial sheath, the presence of penial appendix, penial hooks, atrium and vagina with longitudinal ridges and irregular transverse ridges respectively, but without any hooks. It bears a shiny muscle near the junction of the vagina, gametolytic duct and the free oviduct. Based on the shell morphology and genital characters, the new species is placed in the genus Haploptychius. Our study reveals that other unexplored areas in the northern Western Ghats may potentially harbour more undescribed land snail species which could be endemic. Publication LSID: lsid:http://zoobank.org:pub:18C6E99C-6FDE-46A6-8E12-EB834D588910
摘要本文描述了来自印度马哈拉施特拉邦西高止山脉北部的链状蜗牛属Haploptychius的一个新种，这是该属第三个来自印度的成员。sahyadriensis n. sp.与其他印度和东南亚的haploptychus sp.的区别在于具有近斜螺旋形外壳，低尖顶和存在一个强大的顶板。该新种具有独特的生殖器解剖结构，有长阴茎，有阴茎鞘，有阴茎阑尾，有阴茎钩，心房和阴道分别有纵脊和不规则横脊，但没有任何钩。在阴道、配子体导管和游离输卵管交界处附近有一块有光泽的肌肉。根据壳形态和生殖特征，该新种归属于Haploptychius属。我们的研究表明，在西高止山脉北部的其他未开发地区可能潜藏着更多未描述的陆地蜗牛物种，这些物种可能是地方性的。出版物LSID: LSID: http://zoobank.org:pub:18C6E99C-6FDE-46A6-8E12-EB834D588910
{"title":"A new species of Haploptychius Möllendorff, 1906 (Stylommatophora: Streptaxidae) from the Western Ghats, India","authors":"A. Bhosale, T. Thackeray, Omkar V. Yadav","doi":"10.1080/13235818.2022.2075081","DOIUrl":"https://doi.org/10.1080/13235818.2022.2075081","url":null,"abstract":"ABSTRACT We here describe a new species of the streptaxid snail genus Haploptychius from the northern Western Ghats of Maharashtra, which is the third member of the genus from India. Haploptychius sahyadriensis n. sp. is distinguished from the other Indian and South-East Asian Haploptychius sp. in having suboblique-heliciform shell, low spire and presence of one strong parietal lamella. The new species has unique genital anatomy in having a long penis with a penial sheath, the presence of penial appendix, penial hooks, atrium and vagina with longitudinal ridges and irregular transverse ridges respectively, but without any hooks. It bears a shiny muscle near the junction of the vagina, gametolytic duct and the free oviduct. Based on the shell morphology and genital characters, the new species is placed in the genus Haploptychius. Our study reveals that other unexplored areas in the northern Western Ghats may potentially harbour more undescribed land snail species which could be endemic. Publication LSID: lsid:http://zoobank.org:pub:18C6E99C-6FDE-46A6-8E12-EB834D588910","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"175 - 184"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42118820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2070101
Md. Firoz Shah, Md Abdullah Al Mamun, Muhammad Tofazzal Hossain, M. Moniruzzaman, S. Yeasmine, M. Uddin, M. Jasim Uddin
ABSTRACT Scientists and environmentalists are searching for biological remedies to reduce E. coli concentrations in waterbodies to acceptable levels. The present research was conducted to investigate clearance of E. coli isolated from freshwater mussels (Lamellidens marginalis) in the Old Brahmaputra River, Mymensingh, Bangladesh by conspecific mussels from the same river in aquarium conditions. Mussels were acclimated, depurated and divided into three shell length (SL) groups. Small (38.28 ± 2.81 mm), medium (47.28 ± 1.52 mm) and large (55.89 ± 2.25 mm) mussels were assigned to aquaria designated as T2, T3 and T4 respectively whereas empty mussel shells were assigned to T1 as control in triplicate. After addition of pure E. coli suspensions, 3 mL water samples from each aquarium were collected at hourly intervals for 12 h for total E. coli count (TEC). Statistical analysis revealed that both time and treatments have significant effects (P < 0.05) on TEC. Presence of live mussels caused 1.41–1.63 log10 reduction of TEC after 12 h compared to the control. However, such differences were not consistent among the different SL groups. In conclusion, L. marginalis is capable of reducing E. coli concentrations although the efficacy is not consistently related with mussels’ shell lengths.
{"title":"Clearance of Escherichia coli by the freshwater mussel Lamellidens marginalis in laboratory conditions","authors":"Md. Firoz Shah, Md Abdullah Al Mamun, Muhammad Tofazzal Hossain, M. Moniruzzaman, S. Yeasmine, M. Uddin, M. Jasim Uddin","doi":"10.1080/13235818.2022.2070101","DOIUrl":"https://doi.org/10.1080/13235818.2022.2070101","url":null,"abstract":"ABSTRACT Scientists and environmentalists are searching for biological remedies to reduce E. coli concentrations in waterbodies to acceptable levels. The present research was conducted to investigate clearance of E. coli isolated from freshwater mussels (Lamellidens marginalis) in the Old Brahmaputra River, Mymensingh, Bangladesh by conspecific mussels from the same river in aquarium conditions. Mussels were acclimated, depurated and divided into three shell length (SL) groups. Small (38.28 ± 2.81 mm), medium (47.28 ± 1.52 mm) and large (55.89 ± 2.25 mm) mussels were assigned to aquaria designated as T2, T3 and T4 respectively whereas empty mussel shells were assigned to T1 as control in triplicate. After addition of pure E. coli suspensions, 3 mL water samples from each aquarium were collected at hourly intervals for 12 h for total E. coli count (TEC). Statistical analysis revealed that both time and treatments have significant effects (P < 0.05) on TEC. Presence of live mussels caused 1.41–1.63 log10 reduction of TEC after 12 h compared to the control. However, such differences were not consistent among the different SL groups. In conclusion, L. marginalis is capable of reducing E. coli concentrations although the efficacy is not consistently related with mussels’ shell lengths.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"128 - 134"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49077632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2065439
Rongcheng Rao, Heding Shen
ABSTRACT In order to study how Onchidium reevesii predict tides, the cDNA encoding the precursor of the pedal peptide (Pep), a neuropeptide that plays an important role in neuromotor regulation, was cloned by RACE (Rapid Amplification of cDNA Ends) technology. Bioinformatics analysis was carried out on the sequence of the cloned cDNA. The frequency spectra of the intertidal zone were obtained and Quantitative Real-time PCR (qRT-PCR) experiments were carried out to study the connection between low-frequency sound and tidal perception. The full length of the cDNA was 1627 bp and it encodes 15 copies of Pep; The frequency spectra and qRT-PCR results suggest that O. reevesii can distinguish low-frequency sound waves (100–130 Hz) produced by tides, enabling them to avoid tidal immersion or to come out to feed after the tides falls. In this species, Pep may act as the neurotransmitter for tidal perception based on low-frequency sound signals. These experiments will provide a reference for the further study of the mechanism by which O. reevesii senses tides.
{"title":"Onchidium reevesii may be able to distinguish low-frequency sound to discriminate the state of tides","authors":"Rongcheng Rao, Heding Shen","doi":"10.1080/13235818.2022.2065439","DOIUrl":"https://doi.org/10.1080/13235818.2022.2065439","url":null,"abstract":"ABSTRACT\u0000 In order to study how Onchidium reevesii predict tides, the cDNA encoding the precursor of the pedal peptide (Pep), a neuropeptide that plays an important role in neuromotor regulation, was cloned by RACE (Rapid Amplification of cDNA Ends) technology. Bioinformatics analysis was carried out on the sequence of the cloned cDNA. The frequency spectra of the intertidal zone were obtained and Quantitative Real-time PCR (qRT-PCR) experiments were carried out to study the connection between low-frequency sound and tidal perception. The full length of the cDNA was 1627 bp and it encodes 15 copies of Pep; The frequency spectra and qRT-PCR results suggest that O. reevesii can distinguish low-frequency sound waves (100–130 Hz) produced by tides, enabling them to avoid tidal immersion or to come out to feed after the tides falls. In this species, Pep may act as the neurotransmitter for tidal perception based on low-frequency sound signals. These experiments will provide a reference for the further study of the mechanism by which O. reevesii senses tides.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"158 - 167"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47825086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/13235818.2022.2072259
Sneha Vargheese, V. Basheer
ABSTRACT Sepia pharaonis Ehrenberg, 1831 is a commercially important cuttlefish species in India and other countries. Researchers have found that Sepia pharaonis populations in different regions show morphological and genetic differences, and some have suggested that Sepia pharaonis should be considered a species complex. Sepia ramani Neethiselvan, 2001 was described from the southeast coast of India, but subsequent phylogenetic analyses of molecular data suggest that S. ramani is part of the S. pharaonis species complex. In this study, we conducted detailed morphological and molecular examination of specimens of S. pharaonis and S. ramani from the Tuticorin coast, and suggest that Sepia ramani is a valid species within the Sepia pharaonis species complex.
{"title":"Resolving the taxonomic ambiguity of Sepia ramani using integrative taxonomy","authors":"Sneha Vargheese, V. Basheer","doi":"10.1080/13235818.2022.2072259","DOIUrl":"https://doi.org/10.1080/13235818.2022.2072259","url":null,"abstract":"ABSTRACT Sepia pharaonis Ehrenberg, 1831 is a commercially important cuttlefish species in India and other countries. Researchers have found that Sepia pharaonis populations in different regions show morphological and genetic differences, and some have suggested that Sepia pharaonis should be considered a species complex. Sepia ramani Neethiselvan, 2001 was described from the southeast coast of India, but subsequent phylogenetic analyses of molecular data suggest that S. ramani is part of the S. pharaonis species complex. In this study, we conducted detailed morphological and molecular examination of specimens of S. pharaonis and S. ramani from the Tuticorin coast, and suggest that Sepia ramani is a valid species within the Sepia pharaonis species complex.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"91 - 98"},"PeriodicalIF":1.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45704283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-02DOI: 10.1080/13235818.2022.2040097
K. Thompson, Mark C. Fenwick, S. Clearwater
ABSTRACT New Zealand freshwater mussels are in decline. To support their restoration, existing methods developed for the laboratory transformation of other mussel species were trialled and adapted to establish a method for the successful in vitro propagation of a New Zealand freshwater mussel species, Echyridella menziesii. This paper provides details of the methods and the requirements for metamorphosis including products and equipment, the selection and collection of quality glochidia, procedures to reduce bacterial and fungal infection, the collection and use of fish plasma and mammalian sera, incubation densities and duration and the transition to water. This is the first documented case of successful in vitro metamorphosis, from glochidia to juvenile, of a native New Zealand freshwater mussel which has implications for the conservation of Australasian species.
{"title":"In vitro larvae metamorphosis of a New Zealand native freshwater mussel (Bivalvia: Unionida: Hyriidae) Echyridella menziesii","authors":"K. Thompson, Mark C. Fenwick, S. Clearwater","doi":"10.1080/13235818.2022.2040097","DOIUrl":"https://doi.org/10.1080/13235818.2022.2040097","url":null,"abstract":"ABSTRACT New Zealand freshwater mussels are in decline. To support their restoration, existing methods developed for the laboratory transformation of other mussel species were trialled and adapted to establish a method for the successful in vitro propagation of a New Zealand freshwater mussel species, Echyridella menziesii. This paper provides details of the methods and the requirements for metamorphosis including products and equipment, the selection and collection of quality glochidia, procedures to reduce bacterial and fungal infection, the collection and use of fish plasma and mammalian sera, incubation densities and duration and the transition to water. This is the first documented case of successful in vitro metamorphosis, from glochidia to juvenile, of a native New Zealand freshwater mussel which has implications for the conservation of Australasian species.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"99 - 109"},"PeriodicalIF":1.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46329883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/13235818.2022.2034080
R. Ravinesh, Appukuttan Nair Biju Kumar, Preetha Karnaver
ABSTRACT The Conidae are predatory marine gastropods and they produce one of the most potent venoms in nature. They are ecologically vital for regulating trophic positions and act as primary carnivores in oceans. Amateur shell collectors target some species and ecosystems are intensively exploited by collectors of ornamental shells and commercial traders. Moreover, increasing coastal development, habitat modification and fragmentation, and overexploitation of resources threaten cone snail diversity. This study documents 46 species of Conidae from the Kerala coast, India. Fifteen species are newly recorded from the coast, and one species is reported for the first time from the Indian coast. We also revalidate Conus ceylanensis and Conus bizona.
{"title":"Diversity of Conidae (Caenogastropoda: Conoidea) from the Kerala Coast, India","authors":"R. Ravinesh, Appukuttan Nair Biju Kumar, Preetha Karnaver","doi":"10.1080/13235818.2022.2034080","DOIUrl":"https://doi.org/10.1080/13235818.2022.2034080","url":null,"abstract":"ABSTRACT The Conidae are predatory marine gastropods and they produce one of the most potent venoms in nature. They are ecologically vital for regulating trophic positions and act as primary carnivores in oceans. Amateur shell collectors target some species and ecosystems are intensively exploited by collectors of ornamental shells and commercial traders. Moreover, increasing coastal development, habitat modification and fragmentation, and overexploitation of resources threaten cone snail diversity. This study documents 46 species of Conidae from the Kerala coast, India. Fifteen species are newly recorded from the coast, and one species is reported for the first time from the Indian coast. We also revalidate Conus ceylanensis and Conus bizona.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"73 - 89"},"PeriodicalIF":1.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59776782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/13235818.2022.2041369
P. Vafiadis
The front cover images on this issue of Molluscan Research show the trochid Ethminolia vitiliginea (Menke, 1843), shell diameter 6.0 mm, sieved from shallow sub-littoral sand at Portarlington, southern Port Phillip Bay, Victoria (NMV F248148). It was col-lected on 1st December 2012 during fi eldwork by the Micro-Mollusc Workshop, a three-day activity of the Malacological Society of Australasia (MSA) held immediately before its triennial conference – Molluscs 2012 – in Melbourne (see Stephens 2013; Va fi adis 2013). Additional views of this same snail are shown below in Figure 1. This was the third live specimen of E . vitiliginea that I have seen, the others being from Portarlington 2007) and Clifton Springs (in 2011), both of which are shown in Figure 2.
{"title":"Letter to the editor: front cover notes – the swimming trochid Ethminolia vitiliginea (Menke, 1843) and a first report on its soft-tissue morphology (Trochidae: Umboniinae)","authors":"P. Vafiadis","doi":"10.1080/13235818.2022.2041369","DOIUrl":"https://doi.org/10.1080/13235818.2022.2041369","url":null,"abstract":"The front cover images on this issue of Molluscan Research show the trochid Ethminolia vitiliginea (Menke, 1843), shell diameter 6.0 mm, sieved from shallow sub-littoral sand at Portarlington, southern Port Phillip Bay, Victoria (NMV F248148). It was col-lected on 1st December 2012 during fi eldwork by the Micro-Mollusc Workshop, a three-day activity of the Malacological Society of Australasia (MSA) held immediately before its triennial conference – Molluscs 2012 – in Melbourne (see Stephens 2013; Va fi adis 2013). Additional views of this same snail are shown below in Figure 1. This was the third live specimen of E . vitiliginea that I have seen, the others being from Portarlington 2007) and Clifton Springs (in 2011), both of which are shown in Figure 2.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"1 - 3"},"PeriodicalIF":1.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46402699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/13235818.2021.2015832
W. Ponder, W. Humphreys, M. Shea, G. Dolman, F. Criscione
ABSTRACT A new tateid genus, Ngalidrobia n. gen., containing six new species, is described from groundwater sampled from wells in the Ngalia Basin in the Northern Territory, Australia. The new species differ in their shell morphology which ranges from near planispiral to conical. Of these species, two live in sympatry in one location, the remainder being allopatric. Of the named tateid genera, Ngalidrobia is, on the basis of molecular results using three partial sequences (cytochrome c oxidase subunit I, and 16S and 28S ribosomal RNA), most closely related to Trochidrobia from artesian springs in northern South Australia.
{"title":"Subterranean Tateidae (Gastropoda; Caenogastropoda; Truncatelloidea) from the Ngalia Basin, Northern Territory, Australia","authors":"W. Ponder, W. Humphreys, M. Shea, G. Dolman, F. Criscione","doi":"10.1080/13235818.2021.2015832","DOIUrl":"https://doi.org/10.1080/13235818.2021.2015832","url":null,"abstract":"ABSTRACT A new tateid genus, Ngalidrobia n. gen., containing six new species, is described from groundwater sampled from wells in the Ngalia Basin in the Northern Territory, Australia. The new species differ in their shell morphology which ranges from near planispiral to conical. Of these species, two live in sympatry in one location, the remainder being allopatric. Of the named tateid genera, Ngalidrobia is, on the basis of molecular results using three partial sequences (cytochrome c oxidase subunit I, and 16S and 28S ribosomal RNA), most closely related to Trochidrobia from artesian springs in northern South Australia.","PeriodicalId":18857,"journal":{"name":"Molluscan Research","volume":"42 1","pages":"50 - 72"},"PeriodicalIF":1.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48318251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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