Abstract. Heteromysoides kumejimensis, a new species of the family Mysidae (Mysida) is described from a submarine cave on Kumejima Island, Ryukyu Islands, southwestern Japan, This species can be distinguished from other species of the genus by the following combination of characters: eyes subglobular in dorsal aspect, without sharp process; cornea developed; telson subtriangular, distally rounded, 1.7 times as long as maximum width, with 3 or 4 pairs of short simple spines laterally, and with 3 or 4 pairs of long serrate spines posterolaterally and 1 pair of short simple spines apically; and endopod of third thoracopod with simple, not subchelate, termination.
{"title":"A new species of the genus Heteromysoides Băcescu, 1968 (Mysida, Mysidae) from a submarine cave on Kumejima Island, Ryukyu Islands, southwestern Japan","authors":"M. Shimomura, Y. Fujita","doi":"10.2988/20-00004","DOIUrl":"https://doi.org/10.2988/20-00004","url":null,"abstract":"Abstract. Heteromysoides kumejimensis, a new species of the family Mysidae (Mysida) is described from a submarine cave on Kumejima Island, Ryukyu Islands, southwestern Japan, This species can be distinguished from other species of the genus by the following combination of characters: eyes subglobular in dorsal aspect, without sharp process; cornea developed; telson subtriangular, distally rounded, 1.7 times as long as maximum width, with 3 or 4 pairs of short simple spines laterally, and with 3 or 4 pairs of long serrate spines posterolaterally and 1 pair of short simple spines apically; and endopod of third thoracopod with simple, not subchelate, termination.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45177098","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}
R. Chesser, Michael G. Harvey, R. T. Brumfield, E. Derryberry
Abstract. Recent studies using molecular phylogenetics have provided new insight into the composition of and relationships among species in the avian tribe Xolmiini. Key findings include the paraphyly of Xolmis, including the exclusion of X. dominicanus from the Xolmiini, and the apparent paraphyly of Muscisaxicola. We provide a revised classification of the Xolmiini, including a new genus for Muscisaxicola fluviatilis, based on the recent phylogenetic results.
{"title":"A revised classification of the Xolmiini (Aves: Tyrannidae: Fluvicolinae), including a new genus for Muscisaxicola fluviatilis","authors":"R. Chesser, Michael G. Harvey, R. T. Brumfield, E. Derryberry","doi":"10.2988/20-00005","DOIUrl":"https://doi.org/10.2988/20-00005","url":null,"abstract":"Abstract. Recent studies using molecular phylogenetics have provided new insight into the composition of and relationships among species in the avian tribe Xolmiini. Key findings include the paraphyly of Xolmis, including the exclusion of X. dominicanus from the Xolmiini, and the apparent paraphyly of Muscisaxicola. We provide a revised classification of the Xolmiini, including a new genus for Muscisaxicola fluviatilis, based on the recent phylogenetic results.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48291171","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}
Abstract. Eight species of rodents are described based on previously unreported fossil material from the early Eocene Adobe Town Member of the Washakie Formation of Wyoming. Among these are two new species: the sciuravid Pauromys turnbulli and the cylindrodont Pareumys flynni. The overall rodent fauna consists of twelve species. The greatest change in the rodent fauna is between the lower and middle units of the Adobe Town Member; six species having their last occurrence in the lower unit and three species having their first occurrence in the middle unit. This coincides with the boundary of the Bridgerian and Uintan North American Land Mammal Ages.
{"title":"New material of fossil rodents (Mammalia) from the Eocene (Bridgerian-Uintan) Washakie Formation, southcentral Wyoming","authors":"W. Korth","doi":"10.2988/19-00011","DOIUrl":"https://doi.org/10.2988/19-00011","url":null,"abstract":"Abstract. Eight species of rodents are described based on previously unreported fossil material from the early Eocene Adobe Town Member of the Washakie Formation of Wyoming. Among these are two new species: the sciuravid Pauromys turnbulli and the cylindrodont Pareumys flynni. The overall rodent fauna consists of twelve species. The greatest change in the rodent fauna is between the lower and middle units of the Adobe Town Member; six species having their last occurrence in the lower unit and three species having their first occurrence in the middle unit. This coincides with the boundary of the Bridgerian and Uintan North American Land Mammal Ages.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47748746","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}
Abstract. A new species of calliopiid amphipod, Calliopius ezoensis, from the eastern coasts of Hokkaido, Japan, is described and named. Calliopius ezoensis is similar to the North Atlantic C. sablensis Bousfield & Hendrycks, 1997, but can be discriminated from it in possessing two rows of calceoli on the peduncular articles of antennae 1 and 2 of the female, having a mandibular palp of article 3 longer than article 2, and setation of epimeral plate 3 on the ventral submargin. The new species is distinguished from North Pacific congeners by a combination of characteristics: in having dorsally smooth pereonites, the number of marginal and submarginal setal rows on epimeral plate 2, setation of palp article 2 of maxilla 1, indistinct sexually dimorphic gnathopods 1 and 2, and the length ratio of the inner and outer rami of uropod 2. In addition to previously provided DNA sequences of nuclear histone H3 and mitochondrial 16S rRNA genes, nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I sequences of this new species are provided for the future comparative purposes.
{"title":"A new species of Calliopius (Crustacea: Amphipoda: Calliopiidae) from Japan","authors":"Ryuma Shimoji, T. Nakano, K. Tomikawa","doi":"10.2988/20-00001","DOIUrl":"https://doi.org/10.2988/20-00001","url":null,"abstract":"Abstract. A new species of calliopiid amphipod, Calliopius ezoensis, from the eastern coasts of Hokkaido, Japan, is described and named. Calliopius ezoensis is similar to the North Atlantic C. sablensis Bousfield & Hendrycks, 1997, but can be discriminated from it in possessing two rows of calceoli on the peduncular articles of antennae 1 and 2 of the female, having a mandibular palp of article 3 longer than article 2, and setation of epimeral plate 3 on the ventral submargin. The new species is distinguished from North Pacific congeners by a combination of characteristics: in having dorsally smooth pereonites, the number of marginal and submarginal setal rows on epimeral plate 2, setation of palp article 2 of maxilla 1, indistinct sexually dimorphic gnathopods 1 and 2, and the length ratio of the inner and outer rami of uropod 2. In addition to previously provided DNA sequences of nuclear histone H3 and mitochondrial 16S rRNA genes, nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I sequences of this new species are provided for the future comparative purposes.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48092409","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}
Abstract. A new species of rhizocephalan barnacle is described parasitizing the Florida lobsterette Nephropsis aculeata Smith, 1881. This is the first record of a nephropoid as a host for any rhizocephalan and represents the first record of a rhizocephalan parasitizing any marine lobster (Achelata, Astacidea, Glypheidea, Polychelida). The new species belongs to the genus Parthenopea Kossmann, 1874, which now contains three species: Parthenopea australis Lützen, Glenner & Lörz, 2009 (on a callianassid in New Zealand), P. subterranea Kossmann, 1874 (on a callianassid and an axiid in the Skagerrak strait, Black Sea, and Mediterranean), and P. reinhardi n. sp. (on N. aculeata from Dry Tortugas, Florida, USA). The new species can be distinguished from the other two in the genus based on the shape of the seminal receptacle ducts (proximally straight in P. subterranea versus coiled in P. reinhardi n. sp.) and annuli on the stalk (present in in P. australis but absent in P. reinhardi n. sp.) and the position of the mantle opening (on the surface and close to the stalk in P. australis versus in a groove and more distant from the stalk in P. reinhardi n. sp.). We urge researchers and fisheries scientists working on marine lobsters to examine specimens for rhizocephalans, potentially leading to additional new records among lobster hosts.
摘要描述了寄生于佛罗里达龙虾Nephropsis aculeata Smith, 1881年的一种新的根头藤壶。这是第一次记录到肾样体作为任何根头虫的宿主，也代表了根头虫寄生于任何海洋龙虾(虾纲、虾纲、虾纲、多螯虾纲)的第一次记录。该新种属于Parthenopea Kossmann属，1874年，该属现有三个种:Parthenopea australis l tzen, Glenner & Lörz, 2009年(在新西兰的一条callianassid上)，P. subteranea Kossmann, 1874年(在Skagerrak海峡、黑海和地中海的一条callianassid和一条轴上)，P. reinhardi n. sp.(在美国佛罗里达州Dry Tortugas的n. aculeata上)。这个新物种可以区别于其他两个属基于受精囊管的形状(p . subterranea向近端直接与盘绕在p reinhardi n . sp)和环形柄(在究竟的,但是却没有出现在p reinhardi n . sp)和地幔的位置(表面上,靠近茎究竟与槽和更遥远的茎的p . reinhardi n . sp)。我们敦促研究海洋龙虾的研究人员和渔业科学家检查根头虫的标本，这可能会在龙虾宿主中创造更多的新记录。
{"title":"A new species of Parthenopea Kossmann, 1874 (Cirripedia: Rhizocephala: Parthenopeidae) from Florida: the first record of a rhizocephalan from a lobster (Decapoda: Nephropoidea)","authors":"C. Boyko, Jason D. Williams","doi":"10.2988/19-00010","DOIUrl":"https://doi.org/10.2988/19-00010","url":null,"abstract":"Abstract. A new species of rhizocephalan barnacle is described parasitizing the Florida lobsterette Nephropsis aculeata Smith, 1881. This is the first record of a nephropoid as a host for any rhizocephalan and represents the first record of a rhizocephalan parasitizing any marine lobster (Achelata, Astacidea, Glypheidea, Polychelida). The new species belongs to the genus Parthenopea Kossmann, 1874, which now contains three species: Parthenopea australis Lützen, Glenner & Lörz, 2009 (on a callianassid in New Zealand), P. subterranea Kossmann, 1874 (on a callianassid and an axiid in the Skagerrak strait, Black Sea, and Mediterranean), and P. reinhardi n. sp. (on N. aculeata from Dry Tortugas, Florida, USA). The new species can be distinguished from the other two in the genus based on the shape of the seminal receptacle ducts (proximally straight in P. subterranea versus coiled in P. reinhardi n. sp.) and annuli on the stalk (present in in P. australis but absent in P. reinhardi n. sp.) and the position of the mantle opening (on the surface and close to the stalk in P. australis versus in a groove and more distant from the stalk in P. reinhardi n. sp.). We urge researchers and fisheries scientists working on marine lobsters to examine specimens for rhizocephalans, potentially leading to additional new records among lobster hosts.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43814444","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}
Abstract Speciation as a consequence of lineage reticulation is not uncommon. A taxonomic and nomenclatural issue arises when a putative hybrid becomes established and is, therefore, in contention ...
{"title":"The birth of a species and the validity of hybrid nomenclature demonstrated with a revision of hybrid taxa within Strombidae (Neostromboidae)","authors":"S. Maxwell, A. Bordon, T. Rymer, B. Congdon","doi":"10.2988/19-00007","DOIUrl":"https://doi.org/10.2988/19-00007","url":null,"abstract":"Abstract Speciation as a consequence of lineage reticulation is not uncommon. A taxonomic and nomenclatural issue arises when a putative hybrid becomes established and is, therefore, in contention ...","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42117267","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}
Abstract.— Based on examination of porcellanid crabs from the Gulf of California, Mexico, deposited in the Coleccion Nacional de Crustaceos of the Instituto de Biologia, Universidad Nacional Autono...
摘要-根据对存放在国立自治大学生物研究所国家甲壳类动物收藏馆的墨西哥加利福尼亚湾的蟹类进行的检查…
{"title":"Bopyrid isopods of the genus Aporobopyrus infesting porcellanid crabs (Decapoda: Anomura) in the Gulf of California, Mexico: new host and parasite records","authors":"J. Romero-Rodríguez, F. Álvarez","doi":"10.2988/19-00005","DOIUrl":"https://doi.org/10.2988/19-00005","url":null,"abstract":"Abstract.— Based on examination of porcellanid crabs from the Gulf of California, Mexico, deposited in the Coleccion Nacional de Crustaceos of the Instituto de Biologia, Universidad Nacional Autono...","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43450470","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}
{"title":"In memoriam: Teresa Nesteruk, an exceptional freshwater gastrotrich biologist","authors":"J. Kisielewski","doi":"10.2988/19-00008","DOIUrl":"https://doi.org/10.2988/19-00008","url":null,"abstract":"","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46387141","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}
A. G. Cannizzaro, Donna Balding, E. Lazo-Wasem, T. R. Sawicki
Abstract.— Crangonyx hobbsi Shoemaker, 1941, a variable stygobitic amphipod endemic to the Floridan aquifer, is redescribed from topotype material and populations adjacent to the type locality. In ...
{"title":"A redescription of Hobbs' cave amphipod, Crangonyx hobbsi Shoemaker, 1941 (Amphipoda: Senticaudata: Crangonyctidae), including genetic sequence data for mitochondrial and nuclear genes and notes on its ecology","authors":"A. G. Cannizzaro, Donna Balding, E. Lazo-Wasem, T. R. Sawicki","doi":"10.2988/19-00004","DOIUrl":"https://doi.org/10.2988/19-00004","url":null,"abstract":"Abstract.— Crangonyx hobbsi Shoemaker, 1941, a variable stygobitic amphipod endemic to the Floridan aquifer, is redescribed from topotype material and populations adjacent to the type locality. In ...","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41924759","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}
Abstract Parasitic copepods of the genus Caligus infest the external tissues, mainly skin, of marine fishes. The objective of this study is to review the published literature about the distribution...
{"title":"A checklist of marine parasite copepods of the genus Caligus (O.F. Müller, 1785) and their respective marine fish hosts in Chile.","authors":"P. Ríos","doi":"10.2988/PBSW-D-19-00003","DOIUrl":"https://doi.org/10.2988/PBSW-D-19-00003","url":null,"abstract":"Abstract Parasitic copepods of the genus Caligus infest the external tissues, mainly skin, of marine fishes. The objective of this study is to review the published literature about the distribution...","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44796138","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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