Pub Date : 2022-11-01DOI: 10.11606/1807-0205/2022.62.067
M. A. Hassan, Anjum Shehzad, Urmila Dyola, Muhammad Qasim, N. Fatima, Zershina Maryam
An updated checklist of the genus Eumerus Meigen, 1822 is presented from Pakistan along with two new country records, i.e., Eumerus vestitus Bezzi, 1912 and Eumerus sogdianus Stackelberg, 1952. Eumerus sogdianus is native to Central and Southern Europe, but recorded from east to Central and Southern Asia, and Eumerus vestitus is native to the Afrotropical region, but recently also recorded from India. Both species are collected from northern areas of Pakistan – the extreme edge of the western Himalayas, where a significant diversity of hoverflies has been reported in recent studies. A brief diagnosis, identification key, and a taxonomic remark on known Pakistani Eumerus species are presented. A distribution map and detailed photographs of the newly recorded species are also presented.
{"title":"Two species of the hoverfly genus Eumerus Meigen (Diptera: Syrphidae) new record for Pakistan","authors":"M. A. Hassan, Anjum Shehzad, Urmila Dyola, Muhammad Qasim, N. Fatima, Zershina Maryam","doi":"10.11606/1807-0205/2022.62.067","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.067","url":null,"abstract":"An updated checklist of the genus Eumerus Meigen, 1822 is presented from Pakistan along with two new country records, i.e., Eumerus vestitus Bezzi, 1912 and Eumerus sogdianus Stackelberg, 1952. Eumerus sogdianus is native to Central and Southern Europe, but recorded from east to Central and Southern Asia, and Eumerus vestitus is native to the Afrotropical region, but recently also recorded from India. Both species are collected from northern areas of Pakistan – the extreme edge of the western Himalayas, where a significant diversity of hoverflies has been reported in recent studies. A brief diagnosis, identification key, and a taxonomic remark on known Pakistani Eumerus species are presented. A distribution map and detailed photographs of the newly recorded species are also presented.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43446594","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.062
V. Maia
Lopesia pleromatis sp. nov. (Lopesiini, Cecidomyiidi) is described based on material collected in Atlantic Forest areas of Bertioga (São Paulo State, Brazil). Specimens were obtained from globoid leaf galls on Pleroma raddianum (DC.) Gardner (Melastomataceae), an endemic plant to Brazil. Lopesia pleromatis is compared to other congeneric species. The most important morphological characters are illustrated.
{"title":"A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC.) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil","authors":"V. Maia","doi":"10.11606/1807-0205/2022.62.062","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.062","url":null,"abstract":"Lopesia pleromatis sp. nov. (Lopesiini, Cecidomyiidi) is described based on material collected in Atlantic Forest areas of Bertioga (São Paulo State, Brazil). Specimens were obtained from globoid leaf galls on Pleroma raddianum (DC.) Gardner (Melastomataceae), an endemic plant to Brazil. Lopesia pleromatis is compared to other congeneric species. The most important morphological characters are illustrated.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41515662","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.070
J. Vlasák, A. Santos-Silva
Xenocona Gilmour, 1960 (Acanthocinini) includes seven species distributed through Central America and northern South America. Here we describe two new species from Ecuador: X. audureaui (differing from other species of the genus by the presence of large dark macula on dorsal surface of the basal ⅔ of the elytra combined with the absence of narrow white pubescent lines on other areas of the elytra) and X. uniformis (differing from the other species of the genus by the spiniform outer elytral angle).
{"title":"Description of two new species of Xenocona Gilmour (Coleoptera, Cerambycidae, Lamiinae) from Ecuador","authors":"J. Vlasák, A. Santos-Silva","doi":"10.11606/1807-0205/2022.62.070","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.070","url":null,"abstract":"Xenocona Gilmour, 1960 (Acanthocinini) includes seven species distributed through Central America and northern South America. Here we describe two new species from Ecuador: X. audureaui (differing from other species of the genus by the presence of large dark macula on dorsal surface of the basal ⅔ of the elytra combined with the absence of narrow white pubescent lines on other areas of the elytra) and X. uniformis (differing from the other species of the genus by the spiniform outer elytral angle).","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44799380","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.063
M. Delgado, F. A. Freire, C. Meirelles, Rosângela Gondim D’Oliveira, V. Padula, Juliana Bahia, S. Brandão
Heterobranch sea slugs (Gastropoda) present reduction, internalization, or absence of shell, and include more than 6,000 described species. Approximately 250 species are recorded from Brazil but only 14 had been previously recorded from Rio Grande do Norte, on the Brazilian northeastern coast. As a result of different expeditions conducted between 2008 and 2020, species were collected and identified. Among them, five species were recorded for the first time from the South Atlantic Ocean: Chelidonura hirundinina (Quoy & Gaimard, 1833); Sclerodoris prea (Ev. Marcus & Er. Marcus, 1967); Thuridilla malaquita Ortea & Buske, 2014; Berthella nebula Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020 and Berthella vialactea Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020. Thirty-six species are recorded for the first time from Rio Grande do Norte. The present survey expands the knowledge of the diversity of sea slugs from Brazil and supports the hypothesis of similarity between the heterobranch sea slug fauna from the northeastern Brazil and the Caribbean Sea.
{"title":"Sea slugs (Gastropoda: Heterobranchia) from Rio Grande do Norte, Northeastern Brazil","authors":"M. Delgado, F. A. Freire, C. Meirelles, Rosângela Gondim D’Oliveira, V. Padula, Juliana Bahia, S. Brandão","doi":"10.11606/1807-0205/2022.62.063","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.063","url":null,"abstract":"Heterobranch sea slugs (Gastropoda) present reduction, internalization, or absence of shell, and include more than 6,000 described species. Approximately 250 species are recorded from Brazil but only 14 had been previously recorded from Rio Grande do Norte, on the Brazilian northeastern coast. As a result of different expeditions conducted between 2008 and 2020, species were collected and identified. Among them, five species were recorded for the first time from the South Atlantic Ocean: Chelidonura hirundinina (Quoy & Gaimard, 1833); Sclerodoris prea (Ev. Marcus & Er. Marcus, 1967); Thuridilla malaquita Ortea & Buske, 2014; Berthella nebula Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020 and Berthella vialactea Ghanimi, Schrödl, Goddard, Ballesteros, Gosliner & Valdés, 2020. Thirty-six species are recorded for the first time from Rio Grande do Norte. The present survey expands the knowledge of the diversity of sea slugs from Brazil and supports the hypothesis of similarity between the heterobranch sea slug fauna from the northeastern Brazil and the Caribbean Sea.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44931572","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.064
F. Cardoso, A. Lima, C. L. S. Costa, S. B. Mendes, A. Olímpio, E. Fraga, M. C. Barros
The study provides the first record of Eumops glaucinus in the Maranhão state, located in the northern region of Brazil. The collected specimen was a non-lactating adult female, with grayish pelage, broad ears, smooth face, a well-developed and squarish tragus, and elongated snout. The combined analysis of the morphological and molecular data (COI, Cyt b, and rRNA 16S genes) confirmed the occurrence of E. glaucinus in the state of Maranhão. This record extends the known species range area by 660 km easternward from the closest locality, Belém, Pará.
{"title":"First record of Eumops glaucinus (Wager, 1843) (Chiroptera, Molossidae) to the Brazilian state of Maranhão","authors":"F. Cardoso, A. Lima, C. L. S. Costa, S. B. Mendes, A. Olímpio, E. Fraga, M. C. Barros","doi":"10.11606/1807-0205/2022.62.064","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.064","url":null,"abstract":"The study provides the first record of Eumops glaucinus in the Maranhão state, located in the northern region of Brazil. The collected specimen was a non-lactating adult female, with grayish pelage, broad ears, smooth face, a well-developed and squarish tragus, and elongated snout. The combined analysis of the morphological and molecular data (COI, Cyt b, and rRNA 16S genes) confirmed the occurrence of E. glaucinus in the state of Maranhão. This record extends the known species range area by 660 km easternward from the closest locality, Belém, Pará.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43021138","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.061
Marcella Bigoni Guedes, D. Vilela, Marcos Magalhães de Souza
Only 8% of the approximately 120 conservation units in Minas Gerais State collect information on the order Odonata, which motivated this study. We aimed to survey communities of this insect group in the Environmental Protection Area of the Machado River hydrographic basin, southern Minas Gerais State, Brazil. For this purpose, 12 areas were sampled by active searching from September 2018 to March 2019. Representatives of 71 Odonata species belonging to 8 families were collected. Seven species were found exclusively in this conservation unit, and two species were newly recorded for the state, namely Erythrodiplax chromoptera (Borror, 1942) and Micrathyria venezuelae De Marmels, 1989. This study surveyed the fifth richest odonatofauna in Minas Gerais State, underscoring the importance of the studied area for conservation of Odonata communities and necessitating actions for decreasing environmental impacts on this biological patrimony.
在米纳斯吉拉斯州大约120个保护单位中，只有8%的单位收集到了蜻蜓目的信息，这也是本研究的动机。我们旨在调查巴西米纳斯吉拉斯州南部马查多河水文流域环境保护区的这种昆虫群落。为此，从2018年9月到2019年3月，通过积极搜索对12个地区进行了采样。采集了8科71种蜻蜓的代表作。该保护区仅发现了7个物种，该州新记录了两个物种，即红翅目（Borror，1942）和委内瑞拉密翅目（Micrathyria venezuelae De Marmels，1989）。这项研究调查了米纳斯吉拉斯州第五丰富的齿形动物群，强调了研究区域对保护齿形动物群落的重要性，并有必要采取行动减少对这一生物遗产的环境影响。
{"title":"Odonata (Insecta) community in the Environmental Protection Area of the Machado River hydrographic basin, southern Minas Gerais State, Brazil","authors":"Marcella Bigoni Guedes, D. Vilela, Marcos Magalhães de Souza","doi":"10.11606/1807-0205/2022.62.061","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.061","url":null,"abstract":"Only 8% of the approximately 120 conservation units in Minas Gerais State collect information on the order Odonata, which motivated this study. We aimed to survey communities of this insect group in the Environmental Protection Area of the Machado River hydrographic basin, southern Minas Gerais State, Brazil. For this purpose, 12 areas were sampled by active searching from September 2018 to March 2019. Representatives of 71 Odonata species belonging to 8 families were collected. Seven species were found exclusively in this conservation unit, and two species were newly recorded for the state, namely Erythrodiplax chromoptera (Borror, 1942) and Micrathyria venezuelae De Marmels, 1989. This study surveyed the fifth richest odonatofauna in Minas Gerais State, underscoring the importance of the studied area for conservation of Odonata communities and necessitating actions for decreasing environmental impacts on this biological patrimony.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43199516","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.066
F. S. Silva, L. Simone
An anatomical and taxonomic study of Megalobulimus oblongus (Müller, 1774) and M. conicus (Bequaert, 1948) (Strophocheilidae, Megalobuliminae) is carried out, based mainly on samples from the south-central region of Bahia, Brazil. It revealed interesting anatomical differences in several structures, mainly in the pallial cavity, with greater ramification of vessels in the respiratory region of M. oblongus when compared to M. conicus; and in the genital system of M. conicus, which has a more elongated prostate, and the folds of the penis are more spaced. A taxonomical discussion is presented, including several characters confirmed as typical of the genus and subfamily, such as buccal flange, prerectal valve and pulmonary septum.
{"title":"Anatomy of two species of Megalobulimus (Strophocheilidae, Megalobuliminae) from South-Central Bahia, Brazil","authors":"F. S. Silva, L. Simone","doi":"10.11606/1807-0205/2022.62.066","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.066","url":null,"abstract":"An anatomical and taxonomic study of Megalobulimus oblongus (Müller, 1774) and M. conicus (Bequaert, 1948) (Strophocheilidae, Megalobuliminae) is carried out, based mainly on samples from the south-central region of Bahia, Brazil. It revealed interesting anatomical differences in several structures, mainly in the pallial cavity, with greater ramification of vessels in the respiratory region of M. oblongus when compared to M. conicus; and in the genital system of M. conicus, which has a more elongated prostate, and the folds of the penis are more spaced. A taxonomical discussion is presented, including several characters confirmed as typical of the genus and subfamily, such as buccal flange, prerectal valve and pulmonary septum.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43577285","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.060
L. Simone
A new species of the recently described genus Habeas is described. The genus is the single urocoptid representant in Brazil. The new species is named as Habeas centroris, occurring in Paz de Salobro, Canarana, Bahia, Brazil. It is mainly characterized by its dense, delicate sculpture, peristome slightly centrally positioned. Its anatomy is similar to what is currently known, differing mainly by small pallial gland, short stomach, presence of anterior duct to digestive gland, vas deferens very posteriorly originated, prostate lying further the vas deferens origin, and visceral ganglia connected directly to pleural ganglia. The new species is another example of how weak the knowledge on the land mollusks in central Brazilian semi-dry region is, a biome that deserves protection. https://zoobank.org/0DD6D7B5-60C4-42F4-BA72-A4A229D8C92E.
描述了最近描述的人身保护属的一个新种。该属是巴西特有的一个属。该新物种被命名为中央人身保护区，出现在巴西巴伊亚州卡纳拉那的Paz de Salobro。它的主要特点是其密集，精致的雕塑，边缘略居中。它的解剖结构与目前已知的相似，主要区别在于小的软脑膜腺、短的胃、消化腺的前导管、输精管起源于非常靠后的位置、前列腺位于输精管起源的更远位置以及内脏神经节直接连接到胸膜神经节。这一新物种是巴西中部半干旱地区陆地软体动物知识薄弱的又一个例子，该生物群落值得保护。https://zoobank.org/0DD6D7B5-60C4-42F4-BA72-A4A229D8C92E.
{"title":"A new species of Habeas (Eupulmonata, Urocoptidae) from Canarana region, Bahia, Brazil","authors":"L. Simone","doi":"10.11606/1807-0205/2022.62.060","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.060","url":null,"abstract":"A new species of the recently described genus Habeas is described. The genus is the single urocoptid representant in Brazil. The new species is named as Habeas centroris, occurring in Paz de Salobro, Canarana, Bahia, Brazil. It is mainly characterized by its dense, delicate sculpture, peristome slightly centrally positioned. Its anatomy is similar to what is currently known, differing mainly by small pallial gland, short stomach, presence of anterior duct to digestive gland, vas deferens very posteriorly originated, prostate lying further the vas deferens origin, and visceral ganglia connected directly to pleural ganglia. The new species is another example of how weak the knowledge on the land mollusks in central Brazilian semi-dry region is, a biome that deserves protection. https://zoobank.org/0DD6D7B5-60C4-42F4-BA72-A4A229D8C92E.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45577314","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.065
S. D. Vasconcelos, E. Barbier, T. M. Barbosa
Caves are habitats characterized by low light or total darkness, whose fauna is largely composed of animals that adapt to dark environments, such as bats and many arthropods. Here, we present the first record of bat carcass colonization by Diptera larvae in a cave in the Neotropics. Twenty-one adult specimens of Microcerella halli (Sarcophagidae), seven males and 14 females, emerged from larvae collected in a carcass of Pteronotus gymnonotus (Mormoopidae) found in a twilight zone, about 15 m from the cave entrance. The mean time between carcass collection and adult emergence was 17.99 ± 0.44 days. As colonization by M. halli only occurs after death, we estimated the mean duration of the pupal stage – by recording daily pupation and emergence data – and attempted a preliminary estimate of the post-mortem interval, which indicated that larviposition occurred at least 24 h before carcass collection. Furthermore, we discussed the fact that M. halli females can find and colonize carcasses in low light environments, reinforcing the forensic potential of the species.
{"title":"Life post-death: Colonization of a bat carcass by Microcerella halli (Engel, 1931) (Diptera: Sarcophagidae) in a Neotropical cave","authors":"S. D. Vasconcelos, E. Barbier, T. M. Barbosa","doi":"10.11606/1807-0205/2022.62.065","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.065","url":null,"abstract":"Caves are habitats characterized by low light or total darkness, whose fauna is largely composed of animals that adapt to dark environments, such as bats and many arthropods. Here, we present the first record of bat carcass colonization by Diptera larvae in a cave in the Neotropics. Twenty-one adult specimens of Microcerella halli (Sarcophagidae), seven males and 14 females, emerged from larvae collected in a carcass of Pteronotus gymnonotus (Mormoopidae) found in a twilight zone, about 15 m from the cave entrance. The mean time between carcass collection and adult emergence was 17.99 ± 0.44 days. As colonization by M. halli only occurs after death, we estimated the mean duration of the pupal stage – by recording daily pupation and emergence data – and attempted a preliminary estimate of the post-mortem interval, which indicated that larviposition occurred at least 24 h before carcass collection. Furthermore, we discussed the fact that M. halli females can find and colonize carcasses in low light environments, reinforcing the forensic potential of the species.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47099236","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 : 2022-11-01DOI: 10.11606/1807-0205/2022.62.068
M. Delfino, J. Signorelli
The taxonomic status and anatomy of Leiosolenus (Labis) patagonicus (d'Orbigny, 1846 in 1834-1847) has been revised. This boring bivalve, belonging to the family Mytilidae, is the only Lithophaginae species distributed along the Argentinean coast. None of the fossil species mentioned for this area must be considered as a synonym of d'Orbigny´s species. Leiosolenus patagonicus is characterized by a thin shell, longitudinally elongated, with subterminal umbos and commarginal striae. The calcareous depositions on the outer surface of the shell are extended beyond the posterior margin. This species has well developed purple siphons, well differentiated morphologically from each other. Incurrent siphon is wider than excurrent, opened at the ventral edge and provided with a basal siphon valve at the base. Two pairs of demibranchs type B (1) from Atkins were observed. The shell characters and internal morphology were compared with other related species of the genus living along the South American coast. Finally, repository, type locality and habitat conditions were informed.
对Leiosolenus (Labis) patagonicus (d'Orbigny, 1846 in 1834-1847)的分类地位和解剖学进行了修订。这种无聊的双壳类，属于蛹科，是唯一分布在阿根廷海岸的食石类。这个地区提到的任何化石物种都不能被认为是d'Orbigny物种的同义词。巴塔哥龙的特点是壳薄，纵向拉长，具近顶生伞形和近缘纹。甲壳外表面的钙质沉积物延伸到后缘以外。本种具有发育良好的紫色虹吸管，在形态上彼此分化良好。流入虹吸管比流出虹吸管宽，在腹边打开，并在底部设有基虹吸管阀。观察到两对来自Atkins的B型半分枝(1)。将其外壳特征和内部形态与生活在南美海岸的其他近缘种进行了比较。最后，通报了储存库、类型、地点和生境条件。
{"title":"Leiosolenus (Labis) patagonicus (Bivalvia: Mytilidae) from Argentinean sea, taxonomic revision and anatomical notes","authors":"M. Delfino, J. Signorelli","doi":"10.11606/1807-0205/2022.62.068","DOIUrl":"https://doi.org/10.11606/1807-0205/2022.62.068","url":null,"abstract":"The taxonomic status and anatomy of Leiosolenus (Labis) patagonicus (d'Orbigny, 1846 in 1834-1847) has been revised. This boring bivalve, belonging to the family Mytilidae, is the only Lithophaginae species distributed along the Argentinean coast. None of the fossil species mentioned for this area must be considered as a synonym of d'Orbigny´s species. Leiosolenus patagonicus is characterized by a thin shell, longitudinally elongated, with subterminal umbos and commarginal striae. The calcareous depositions on the outer surface of the shell are extended beyond the posterior margin. This species has well developed purple siphons, well differentiated morphologically from each other. Incurrent siphon is wider than excurrent, opened at the ventral edge and provided with a basal siphon valve at the base. Two pairs of demibranchs type B (1) from Atkins were observed. The shell characters and internal morphology were compared with other related species of the genus living along the South American coast. Finally, repository, type locality and habitat conditions were informed.","PeriodicalId":35345,"journal":{"name":"Papeis Avulsos de Zoologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47053683","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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