Pub Date : 2016-07-05DOI: 10.2988/0006-324X-129.Q2.157
S. Cairns, H. Zibrowius
Abstract Two new species of Flabellum are described from the southwest Indian Ocean, representing extremes of morphological variation within the genus. One of them, F. kerguelensis, is the first scleractinian coral reported from the Kerguelen Plateau. Flabellum now consists of 44 extant species, making it the fifth most species-rich genus in the order.
{"title":"Two new species of Flabellum (Scleractinia: Flabellidae) from the Southwest Indian Ocean","authors":"S. Cairns, H. Zibrowius","doi":"10.2988/0006-324X-129.Q2.157","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.157","url":null,"abstract":"Abstract Two new species of Flabellum are described from the southwest Indian Ocean, representing extremes of morphological variation within the genus. One of them, F. kerguelensis, is the first scleractinian coral reported from the Kerguelen Plateau. Flabellum now consists of 44 extant species, making it the fifth most species-rich genus in the order.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69655185","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 : 2016-07-05DOI: 10.2988/0006-324X-129.Q2.144
C. H. Ernst, A. F. Laemmerzahl, J. Lovich
Abstract The turtle Cuora amboinensis has an extensive distribution covering most of southern mainland Asia, Indonesia, and extending to the Philippine Islands. Unlike many species, C. amboinensis occurs on both sides of Wallace's Line separating Asian and Australian flora and fauna. Four subspecies are currently recognized; Cuora a. kamaroma (southern continental Asia, Java and the northern Philippines [introduced]), C. a. lineata (Kachin Province, Myanmar [Burma] and adjacent Yunnan Province, China), C. a. couro (Sumatra, Java, Sumbawa, and adjacent smaller Indonesian islands); and C. a. amboinensis (Moluccas, Sulawesi, Philippines). Five pattern and 33 morphological characters were examined for variation in 691 individuals from throughout the species' range. Our analyses suggest that only two presently recognized subspecies are valid: amboinensis and kamaroma. Neither couro nor lineata are supported by our analysis. We recommend that C. a. couro should be synonymized with the species C. amboinensis and C. a. lineata with the subspecies C. a. kamaroma.
Cuora amboinensis分布广泛，覆盖亚洲南部大陆大部分地区和印度尼西亚，并延伸至菲律宾群岛。与许多物种不同，C. amboinensis出现在华莱士线的两侧，华莱士线将亚洲和澳大利亚的动植物区隔开来。目前已确认的有四个亚种;Cuora a. kamaroma(亚洲大陆南部，爪哇和菲律宾北部[引进])，C. a. lineata(缅甸克钦省和邻近的中国云南省)，C. a. couro(苏门答腊，爪哇，松巴哇和邻近的较小的印度尼西亚岛屿);和c.a. amboinensis(菲律宾苏拉威西岛摩鹿加群岛)。对691个个体的5种形态和33种形态特征进行了变异分析。我们的分析表明，只有两个目前公认的亚种是有效的:amboinensis和kamaroma。我们的分析既不支持理论，也不支持理论。我们建议将C. a. couro与C. amboinensis同义，将C. a. lineata与C. a. kamaroma亚种同义。
{"title":"A morphological review of subspecies of the Asian box turtle,Cuora amboinensis (Testudines, Geomydidae)","authors":"C. H. Ernst, A. F. Laemmerzahl, J. Lovich","doi":"10.2988/0006-324X-129.Q2.144","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.144","url":null,"abstract":"Abstract The turtle Cuora amboinensis has an extensive distribution covering most of southern mainland Asia, Indonesia, and extending to the Philippine Islands. Unlike many species, C. amboinensis occurs on both sides of Wallace's Line separating Asian and Australian flora and fauna. Four subspecies are currently recognized; Cuora a. kamaroma (southern continental Asia, Java and the northern Philippines [introduced]), C. a. lineata (Kachin Province, Myanmar [Burma] and adjacent Yunnan Province, China), C. a. couro (Sumatra, Java, Sumbawa, and adjacent smaller Indonesian islands); and C. a. amboinensis (Moluccas, Sulawesi, Philippines). Five pattern and 33 morphological characters were examined for variation in 691 individuals from throughout the species' range. Our analyses suggest that only two presently recognized subspecies are valid: amboinensis and kamaroma. Neither couro nor lineata are supported by our analysis. We recommend that C. a. couro should be synonymized with the species C. amboinensis and C. a. lineata with the subspecies C. a. kamaroma.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69654655","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 : 2016-06-22DOI: 10.2988/0006-324X-129.Q2.129
Zhongming Wang, T. Munroe, Xiaoyu Kong
Abstract A new tongue sole, Cynoglossus nanhaiensis, described from 21 specimens (101.0–133.7 mm SL) collected in coastal waters of the South China Sea, is distinguished from congeners by the following combination of characters: 3 ocular-side lateral lines; no blind-side lateral lines; 2 ocular-side nostrils; 8 caudal-fin rays; 49–51 total vertebrae; 64–73 scales in the midlateral line; 11–12 scales in diagonal series between midlateral and dorsal lateral lines; 99–108 dorsal-fin rays; 77–82 anal-fin rays; pores of lateral-line scales tubular, with conspicuously black tips posteriorly; and with light- to medium-brown ocular-side background coloration overlain by numerous, small, irregular, dark blotches forming a series of narrow, interrupted, longitudinal stripes, with many specimens also featuring two large, brown spots on their caudal region. Among congeners, C. nanhaiensis is most similar to C. maccullochi Norman, 1926, described from specimens taken off Queensland, Australia, but differs in its ocular-side pigmentation (conspicuous longitudinal series of irregular blotches and caudal spots absent in C. maccullochi) and body depth. Features of C. nanhaiensis are also reminiscent of those reported for C. dollfusi (Chabanaud, 1931), a poorly-known nominal species from the Red Sea, and C. itinus (Snyder, 1909), a better-known species occurring in marine waters off Japan and Southeast Asia. Cynoglossus nanhaiensis differs from both species in having two (vs. one) ocular-side nostrils. Cynoglossus itinus also lacks the series of conspicuous, darkly-pigmented, interrupted, longitudinal stripes on the ocular side that are characteristic of C. nanhaiensis. Cynoglossus nanhaiensis is further distinguished from C. dollfusi in having only a single pelvic fin (vs. two in C. dollfusi). Cynoglossus nanhaiensis occurs in coastal waters of the South China Sea off southern China and Viet Nam.
{"title":"A new species of tongue sole (Pisces: Pleuronectiformes: Cynoglossidae: Cynoglossus) from coastal waters of the South China Sea","authors":"Zhongming Wang, T. Munroe, Xiaoyu Kong","doi":"10.2988/0006-324X-129.Q2.129","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.129","url":null,"abstract":"Abstract A new tongue sole, Cynoglossus nanhaiensis, described from 21 specimens (101.0–133.7 mm SL) collected in coastal waters of the South China Sea, is distinguished from congeners by the following combination of characters: 3 ocular-side lateral lines; no blind-side lateral lines; 2 ocular-side nostrils; 8 caudal-fin rays; 49–51 total vertebrae; 64–73 scales in the midlateral line; 11–12 scales in diagonal series between midlateral and dorsal lateral lines; 99–108 dorsal-fin rays; 77–82 anal-fin rays; pores of lateral-line scales tubular, with conspicuously black tips posteriorly; and with light- to medium-brown ocular-side background coloration overlain by numerous, small, irregular, dark blotches forming a series of narrow, interrupted, longitudinal stripes, with many specimens also featuring two large, brown spots on their caudal region. Among congeners, C. nanhaiensis is most similar to C. maccullochi Norman, 1926, described from specimens taken off Queensland, Australia, but differs in its ocular-side pigmentation (conspicuous longitudinal series of irregular blotches and caudal spots absent in C. maccullochi) and body depth. Features of C. nanhaiensis are also reminiscent of those reported for C. dollfusi (Chabanaud, 1931), a poorly-known nominal species from the Red Sea, and C. itinus (Snyder, 1909), a better-known species occurring in marine waters off Japan and Southeast Asia. Cynoglossus nanhaiensis differs from both species in having two (vs. one) ocular-side nostrils. Cynoglossus itinus also lacks the series of conspicuous, darkly-pigmented, interrupted, longitudinal stripes on the ocular side that are characteristic of C. nanhaiensis. Cynoglossus nanhaiensis is further distinguished from C. dollfusi in having only a single pelvic fin (vs. two in C. dollfusi). Cynoglossus nanhaiensis occurs in coastal waters of the South China Sea off southern China and Viet Nam.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.129","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69654512","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 : 2016-06-17DOI: 10.2988/0006-324X-129.Q2.114
P. R. De los Ríos-Escalante, Luciano Parra-Coloma, M. Peralta, J. Pérez-Schultheiss, Erich Rudolph
Abstract Groundwaters are globally characterized by the presence of a high diversity of crustacean species. The current knowledge about these environments in South America is limited. The objective of this study is to compile a checklist of crustacean species reported from Chilean groundwaters. We found sixty publications about the groundwater fauna in Chile. A total of 46 species belonging to the families Canthocamptidae, Bogidiellidae, Falklandellidae, Phreatogammaridae, Paraleptamphopidae, Ingolfiellidae, Stygocarididae, Bathynellidae, Parabathynellidae, and Parastacidae occur between 24° S and 50° S. The present study indicates that it is necessary to conduct more research towards a comprehensive knowledge about the groundwater crustaceans of Chile.
{"title":"A checklist of subterranean water crustaceans from Chile (South America)","authors":"P. R. De los Ríos-Escalante, Luciano Parra-Coloma, M. Peralta, J. Pérez-Schultheiss, Erich Rudolph","doi":"10.2988/0006-324X-129.Q2.114","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.114","url":null,"abstract":"Abstract Groundwaters are globally characterized by the presence of a high diversity of crustacean species. The current knowledge about these environments in South America is limited. The objective of this study is to compile a checklist of crustacean species reported from Chilean groundwaters. We found sixty publications about the groundwater fauna in Chile. A total of 46 species belonging to the families Canthocamptidae, Bogidiellidae, Falklandellidae, Phreatogammaridae, Paraleptamphopidae, Ingolfiellidae, Stygocarididae, Bathynellidae, Parabathynellidae, and Parastacidae occur between 24° S and 50° S. The present study indicates that it is necessary to conduct more research towards a comprehensive knowledge about the groundwater crustaceans of Chile.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69654783","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 : 2016-05-20DOI: 10.2988/0006-324X-129.Q2.103
Anna J. Phillips, Ricardo Salas-Montiel, A. Oceguera-Figueroa
Abstract.— The complete holdings of Macrobdella species at the Smithsonian's National Museum of Natural History were examined and the identity of 4 specimen lots were redetermined. One of these lots was redetermined as Macrobdella sestertia and represents the first report of this species from New Hampshire. Prior to this report, this species was only known from a few occurrences in eastern Massachusetts and Maine. This is also the first report of this species to be found in sympatry with Macrobdella decora, a more common congener with a widespread distribution.
{"title":"Distribution of the New England Medicinal Leech, Macrobdella sestertia Whitman, 1886 and redeterminations of specimens of Macrobdella (Annelida: Clitellata: Macrobdellidae) at the National Museum of Natural History, Smithsonian Institution","authors":"Anna J. Phillips, Ricardo Salas-Montiel, A. Oceguera-Figueroa","doi":"10.2988/0006-324X-129.Q2.103","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.103","url":null,"abstract":"Abstract.— The complete holdings of Macrobdella species at the Smithsonian's National Museum of Natural History were examined and the identity of 4 specimen lots were redetermined. One of these lots was redetermined as Macrobdella sestertia and represents the first report of this species from New Hampshire. Prior to this report, this species was only known from a few occurrences in eastern Massachusetts and Maine. This is also the first report of this species to be found in sympatry with Macrobdella decora, a more common congener with a widespread distribution.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69654734","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 : 2016-05-17DOI: 10.2988/0006-324X-129.Q2.84
N. Woodman, R. D. Fisher
Abstract Review of specimens of long-tailed shrews (Mammalia, Soricidae, Sorex) from the northwestern United States in the National Museum of Natural History (USNM), Washington, DC, has revealed the presence of the Olympic Shrew, Sorex rohweri Rausch et al., 2007, in the Coastal Range west of the Willamette Valley in Oregon. This determination nearly doubles the documented distribution for this species and increases the species diversity of soricids in Oregon to eleven. Sorex rohweri is relatively uncommon, but it occurs in a variety of forest successional stages and even clear cuts, as long as there is nearby forest and trees are allowed to regenerate. All USNM specimens from Washington formerly identified as S. cinereus streatori Merriam, 1895 are instead referable to the Olympic Shrew. The distribution of S. c. streatori is thereby restricted to the Pacific coasts of British Columbia north of the lower Frasier River and southcentral Alaska. Our study highlights the importance of taking and preserving high-quality voucher specimens in a collection where they are readily available for re-study.
摘要对华盛顿特区国家自然历史博物馆(USNM)中来自美国西北部的长尾鼩(哺乳动物，长尾鼩科，长尾鼩科)标本的回顾发现，在俄勒冈州威拉米特山谷以西的沿海山脉中存在着奥林匹克鼩(Sorex rohweri Rausch et al.， 2007)。这一决定几乎使该物种的记录分布增加了一倍，并使俄勒冈州的索瑞科物种多样性增加到11种。rohweri是相对罕见的，但它发生在各种森林演代阶段，甚至是完全砍伐，只要附近有森林和树木被允许再生。所有来自华盛顿的标本以前被鉴定为S. cinereus streatori Merriam, 1895年改为奥林匹克鼩鼱。因此，S. c. streatori的分布被限制在不列颠哥伦比亚省的太平洋沿岸、弗雷泽河下游以北和阿拉斯加中南部。我们的研究强调了采集和保存高质量代金券标本的重要性，这些标本可以随时用于重新研究。
{"title":"Identification and distribution of the Olympic Shrew (Eulipotyphla: Soricidae), Sorex rohweri Rausch et al., 2007 in Oregon and Washington, based on USNM specimens","authors":"N. Woodman, R. D. Fisher","doi":"10.2988/0006-324X-129.Q2.84","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.84","url":null,"abstract":"Abstract Review of specimens of long-tailed shrews (Mammalia, Soricidae, Sorex) from the northwestern United States in the National Museum of Natural History (USNM), Washington, DC, has revealed the presence of the Olympic Shrew, Sorex rohweri Rausch et al., 2007, in the Coastal Range west of the Willamette Valley in Oregon. This determination nearly doubles the documented distribution for this species and increases the species diversity of soricids in Oregon to eleven. Sorex rohweri is relatively uncommon, but it occurs in a variety of forest successional stages and even clear cuts, as long as there is nearby forest and trees are allowed to regenerate. All USNM specimens from Washington formerly identified as S. cinereus streatori Merriam, 1895 are instead referable to the Olympic Shrew. The distribution of S. c. streatori is thereby restricted to the Pacific coasts of British Columbia north of the lower Frasier River and southcentral Alaska. Our study highlights the importance of taking and preserving high-quality voucher specimens in a collection where they are readily available for re-study.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.84","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69656124","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 : 2016-05-05DOI: 10.2988/0006-324X-129.Q2.76
C. Boyko, Jason D. Williams
Abstract Epicarideans, parasitic isopods found in and on other crustaceans, are cryptic in nature. Detecting and collecting these parasites can be difficult and requires special techniques. The present paper reviews these techniques, providing helpful information on locating the isopods and isolating them from their hosts. In addition, information on preservation of these animals is provided. Using these methods, ecologists and other researchers could provide critical material for future studies on the life histories and evolutionary relationships of these parasites.
{"title":"Methods of detection, collection and preservation of parasitic isopods (Isopoda: Epicaridea)1","authors":"C. Boyko, Jason D. Williams","doi":"10.2988/0006-324X-129.Q2.76","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.76","url":null,"abstract":"Abstract Epicarideans, parasitic isopods found in and on other crustaceans, are cryptic in nature. Detecting and collecting these parasites can be difficult and requires special techniques. The present paper reviews these techniques, providing helpful information on locating the isopods and isolating them from their hosts. In addition, information on preservation of these animals is provided. Using these methods, ecologists and other researchers could provide critical material for future studies on the life histories and evolutionary relationships of these parasites.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.76","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69655917","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 : 2016-04-27DOI: 10.2988/0006-324X-129.Q2.56
R. Biseswar, P. Glynn
Abstract A new species of Echiura, Anelassorhynchus panamensis (Family: Echiuridae), is described from the eastern tropical Pacific Ocean. The specimens examined are from collections in the invertebrate museum, Rosenstiel School of Marine and Atmospheric Science, University of Miami, and were collected from a coral reef in Panama. This species is distinguished in possessing a proboscis that is divided distally into numerous lobes of different shapes and sizes, an opaque integument with closely aligned transverse wrinkles, a pair of microscopic ventral setae, two pairs of tubular, postsetal gonoducts with elongated coiled gonostomes and tubular anal vesicles. Peculiar coelomic organs were found in the holotype and in one paratype. This new reef-associated echiuran demonstrated consistently high spatial and temporal abundances. Quantitative sampling of A. panamensis along the Uva Island fore-reef coral rubble/sand microhabitat revealed median population densities between 2–8 individuals per 20 liters of sediment sampled, and median annual densities that ranged between 1 to 7 individuals per 20 liters of sediment over a five-year period (2002–2006).
{"title":"A new coral reef associated species of Echiura, Anelassorhynchus panamensis from the eastern Pacific Ocean","authors":"R. Biseswar, P. Glynn","doi":"10.2988/0006-324X-129.Q2.56","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.56","url":null,"abstract":"Abstract A new species of Echiura, Anelassorhynchus panamensis (Family: Echiuridae), is described from the eastern tropical Pacific Ocean. The specimens examined are from collections in the invertebrate museum, Rosenstiel School of Marine and Atmospheric Science, University of Miami, and were collected from a coral reef in Panama. This species is distinguished in possessing a proboscis that is divided distally into numerous lobes of different shapes and sizes, an opaque integument with closely aligned transverse wrinkles, a pair of microscopic ventral setae, two pairs of tubular, postsetal gonoducts with elongated coiled gonostomes and tubular anal vesicles. Peculiar coelomic organs were found in the holotype and in one paratype. This new reef-associated echiuran demonstrated consistently high spatial and temporal abundances. Quantitative sampling of A. panamensis along the Uva Island fore-reef coral rubble/sand microhabitat revealed median population densities between 2–8 individuals per 20 liters of sediment sampled, and median annual densities that ranged between 1 to 7 individuals per 20 liters of sediment over a five-year period (2002–2006).","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.56","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69655430","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 : 2016-04-27DOI: 10.2988/0006-324X-129.Q2.48
P. Ng
Abstract A new species of deep-sea crab, Homologenus namakae (Brachyura: Homolidae) is described from a depth of 823 m off Kaua‘i, Hawai‘i. The new species is the first member of the genus reported from the area and can be distinguished from congeners by its carapace morphology (lack of a gastric spine, presence of prominent antennal and subhepatic spines), structure of the third maxillipeds and proportions of the ambulatory legs.
{"title":"On a new species of deep-sea crab of the genus Homologenus A. Milne-Edwards, in Henderson, 1888 (Crustacea: Decapoda: Brachyura: Homolidae) from Kaua‘i, Hawai‘i","authors":"P. Ng","doi":"10.2988/0006-324X-129.Q2.48","DOIUrl":"https://doi.org/10.2988/0006-324X-129.Q2.48","url":null,"abstract":"Abstract A new species of deep-sea crab, Homologenus namakae (Brachyura: Homolidae) is described from a depth of 823 m off Kaua‘i, Hawai‘i. The new species is the first member of the genus reported from the area and can be distinguished from congeners by its carapace morphology (lack of a gastric spine, presence of prominent antennal and subhepatic spines), structure of the third maxillipeds and proportions of the ambulatory legs.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2016-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2988/0006-324X-129.Q2.48","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69655348","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 : 2016-04-27DOI: 10.2988/0006-324X-129.Q2.66
G. Graves
Abstract The naked heads of Cathartes vultures are widely believed to be adaptations for temperature regulation and to reduce plumage fouling during carrion feeding. Bright head color and the elaborate pattern of caruncles on the head and neck skin have a likely function in intra- and interspecific signaling. These integumentary characters have been difficult to study because of extensive postmortem color fading and shrinkage in museum specimens. Here I provide the first detailed description of head color and caruncles of the Greater Yellow-headed Vulture (C. melambrotus) from freshly collected specimens and provide comparative notes on sympatric populations of the Turkey Vulture (C. aura) and Lesser Yellow-headed Vulture (C. burrovianus) from Guyana.
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