Cordeiro Ralf T S, Castro Clovis B, Pérez Carlos D
Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, PE, Brazil.; Email:
Museu Nacional, Universidade Federal do Rio de Janeiro, RJ, Brazil.; Email:
Zootaxa. 2015 Dec 15;4058(1):81-100. doi: 10.11646/zootaxa.4058.1.4.
Current knowledge about the Brazilian deep-water octocoral fauna remains scarce, fragmented, and mostly based on unpublished, regional scale surveys. The present work provides the first comprehensive study of the family Chrysogorgidae Verrill, 1883 in Brazil, based on morphological analysis of specimens collected in the last decade and those currently placed in museums. Members of this family are common mainly at great depths and remarkable for the iridescent aspect of their colonies. In Brazil, to the present, only four species were reported: Chrysogorgia elegans (Verrill, 1883), Chrysogorgia multiflora Deichmann, 1936, Stephanogorgia rattoi Castro, Medeiros & Loiola, 2010 and Trichogorgia brasiliensis Castro, Medeiros & Loiola, 2010-the last two are shallow-water species. In this study, three new deep-water species are described, Chrysogorgia tuberculata, Chrysogorgia upsilonia and Radicipes kopelatos, and a new record to Brazil is reported, Chrysogorgia fewkesii Verrill, 1883, as well as latitudinal expansions in distributions of Chrysogorgia elegans and Chrysogorgia multiflora are presented.
目前，关于巴西深水八放珊瑚动物群的知识仍然匮乏、零散，且大多基于未发表的区域规模调查。本研究首次对1883年的金柳珊瑚科进行了全面研究，该研究基于对过去十年收集的标本以及目前保存在博物馆中的标本进行形态学分析。该科成员主要分布在深海，其群体的虹彩外观十分显著。在巴西，目前仅报道了四个物种：秀丽金柳珊瑚（Chrysogorgia elegans，1883年）、多花金柳珊瑚（Chrysogorgia multiflora，1936年）、拉氏冠柳珊瑚（Stephanogorgia rattoi，2010年）和巴西羽柳珊瑚（Trichogorgia brasiliensis，2010年），后两个是浅水物种。在本研究中，描述了三个新的深水物种：瘤状金柳珊瑚（Chrysogorgia tuberculata）、希腊字母Upsilon形金柳珊瑚（Chrysogorgia upsilonia）和科氏根柳珊瑚（Radicipes kopelatos），并报告了巴西的一个新记录物种：费氏金柳珊瑚（Chrysogorgia fewkesii，1883年），此外还展示了秀丽金柳珊瑚和多花金柳珊瑚分布范围的纬度扩展情况。
