多毛纲相关蟹类古斯塔夫斯属（Ahyong和Ng，2009年）（十足目：短尾派：无指蟹科）中的第二个物种。

A second species in the polychaete-associated crab genus Gustavus Ahyong & Ng, 2009 (Decapoda: Brachyura: Aphanodactylidae).

作者信息

Ng Peter K L, Anker Arthur

机构信息

Lee Kong Chian Natural History Museum; Faculty of Science; National University of Singapore; 2 Conservatory Drive; Singapore 117377; Singapore.

Universidade Federal de Pelotas (UFPEL); Departamento de Ecologia; Zoologia e Genética; Instituto de Biologia; Campus Universitário Capão do Leão; RS; 96010-610; Brazil; Biological and Environmental Science & Engineering Division; King Abdullah University of Science and Technology (KAUST); Thuwal; Saudi Arabia.

出版信息

Zootaxa. 2024 Aug 26;5497(3):369-380. doi: 10.11646/zootaxa.5497.3.3.

DOI:10.11646/zootaxa.5497.3.3

PMID:39647145

Abstract

A second species of the previously monotypic aphanodactylid crab genus Gustavus Ahyong & Ng, 2009 is described from the Red Sea coast of Saudi Arabia. The new species, Gustavus holthuisae sp. nov., inhabits the tubes of terebellid polychaetes near mangrove roots. It can be distinguished from the type species from Guam, Gustavus mecognathus Ahyong & Ng, 2009, by the structure of the dorsal surface of the carapace, the proportions and form of the frontal margin, the shape of the third maxilliped, the armature of the basis-ischium and merus of the third and fourth ambulatory legs, and the structure of the male pleon and gonopods.

摘要

2009年，阿永与吴描述了单型的隐指蟹属古斯塔夫蟹，现在沙特阿拉伯红海海岸发现了该属的第二个物种。新物种古斯塔夫·霍尔修斯蟹（Gustavus holthuisae sp. nov.）栖息在红树林根部附近的蛰龙介多毛类动物的管中。它可以通过头胸甲背面的结构、额缘的比例和形状、第三颚足的形状、第三和第四步足底节-座节及腿节的刚毛以及雄性腹节和生殖肢的结构，与来自关岛的模式种梅氏古斯塔夫蟹（Gustavus mecognathus Ahyong & Ng, 2009）区分开来。