Anker Arthur
Universidade Federal de Goiás (UFG), Campus Samambaia, Instituto de Ciências Biológicas, ICB-5, Avenida Esperança s/n, Goiânia, GO, 74690-900, Brazil..
Zootaxa. 2020 Jun 3;4786(3):zootaxa.4786.3.2. doi: 10.11646/zootaxa.4786.3.2.
The present study deals with two species new to science, as well as several new records in the closely related alpheid shrimp genera Salmoneus Holthuis, 1955 and Deioneus Dworschak, Anker Abed-Navandi, 2000, based on material collected at various localities in the tropical western and eastern Atlantic Ocean. In the western Atlantic, Salmoneus inconspicuus sp. nov. is described based on material from the Caribbean coast of Panama, Cuba, French Antilles and (with some doubts) Bermuda. The new species has been previously reported from the eastern Caribbean Sea as S. teres Manning Chace, 1990, a closely related species so far known only from Ascension Island in the central Atlantic. Salmoneus camaroncito Anker, 2010 is reported from the Caribbean coast of Mexico, for the first time since its original description. Salmoneus carvachoi Anker, 2007 is reported from Colombia and southeastern USA, representing a new record of the species for each of these countries. Salmoneus depressus Anker, 2011 and Salmoneus setosus Manning Chace, 1990 are reported for the first time from Cuba and Panama, respectively. In addition, these two species, as well as Salmoneus wehrtmanni Anker, 2010, are reported from new localities in Mexico. In the eastern Atlantic, Salmoneus saotomensis sp. nov. is described based on a single specimen from São Tomé Island in the Gulf of Guinea. The new species is characterised by the somewhat enlarged minor cheliped and is compared to all other Atlantic species presenting this feature. Deioneus sandizelli Dworschak, Anker Abed-Navandi, 2000 is reported from São Tomé Island, for the first second time since its original description based on the Cape Verde type material. The characters separating Deioneus and Salmoneus are reassessed. The new evidence shows that these two genera are distinguished by only one morphological feature known to be variable in at least one non-related alpheid genus. However, in view of the increasing morphological heterogeneity in Salmoneus, it seems more appropriate to retain Deioneus as a valid genus for it may represent a distinct clade that also includes several other species currently placed in Salmoneus.
本研究基于在热带西大西洋和东大西洋不同地点收集的材料，涉及两个科学新物种，以及在亲缘关系密切的鼓虾属（Salmoneus Holthuis，1955）和德氏鼓虾属（Deioneus Dworschak、Anker & Abed-Navandi，2000）中的几个新记录。在西大西洋，基于来自巴拿马加勒比海岸、古巴、法属安的列斯群岛以及（存疑）百慕大的材料，描述了隐匿鼓虾新种（Salmoneus inconspicuus sp. nov.）。该新物种此前在东加勒比海被报道为1990年曼宁和蔡斯描述的圆鼓虾（S. teres），这一近缘物种迄今仅在大西洋中部的阿森松岛被发现。自2010年安克首次描述后，墨西哥加勒比海岸首次报道了卡氏鼓虾（Salmoneus camaroncito Anker，2010）。哥伦比亚和美国东南部报道了卡氏鼓虾（Salmoneus carvachoi Anker，2007），这分别是这两个国家该物种的新记录。古巴和巴拿马分别首次报道了扁鼓虾（Salmoneus depressus Anker，2011）和刚毛鼓虾（Salmoneus setosus Manning & Chace，1990）。此外，这两个物种以及2010年的韦氏鼓虾（Salmoneus wehrtmanni Anker）在墨西哥的新地点被报道。在东大西洋，基于几内亚湾圣多美岛的一个标本描述了圣多美鼓虾新种（Salmoneus saotomensis sp. nov.）。该新物种的特征是小螯足稍有增大，并与具有此特征的所有其他大西洋物种进行了比较。2000年的桑氏德氏鼓虾（Deioneus sandizelli Dworschak、Anker & Abed-Navandi）自基于佛得角模式标本首次描述以来，圣多美岛第二次报道了该物种。重新评估了区分德氏鼓虾属和鼓虾属的特征。新证据表明，这两个属仅通过一个形态特征区分，而该特征在至少一个非亲缘鼓虾属中已知是可变的。然而，鉴于鼓虾属中形态异质性的增加，保留德氏鼓虾属作为一个有效属似乎更合适，因为它可能代表一个独特的分支，其中还包括目前置于鼓虾属中的其他几个物种。
