Absar Parveen Farzana, Mitra Santanu, Kharkongor Ilona Jacinta
Department of Wildlife Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India..
Zootaxa. 2017 Dec 18;4365(3):302-310. doi: 10.11646/zootaxa.4365.3.2.
A new species of freshwater crab of the genus Teretamon Yeo Ng, 2007 is described based on material collected from a limestone cave state of Meghalaya, in the northeastern Himalayan region of India. Teretamon spelaeum n. sp. can easily be distinguished from its congeners by a well suite of carapace and gonopod characters: a relatively wider carapace, setose chelipeds and legs, a highly reduced cornea of the eye, and a diagnostic male first gonopod that has a low rounded median dorsal flap on the terminal joint. The morphology of the new species is clearly adapted for the cave dwelling and is the first true troglobitic freshwater crab known from India.
基于从印度喜马拉雅地区东北部梅加拉亚邦的一个石灰岩洞穴采集的材料，描述了圆蟹属（Teretamon）的一个淡水蟹新物种。2007年，Yeo和Ng首次对该属进行了描述。洞穴圆蟹（Teretamon spelaeum）新物种可以通过一套完整的头胸甲和生殖肢特征很容易地与其同属物种区分开来：相对较宽的头胸甲、有刚毛的螯足和步足、高度退化的眼角膜，以及在末节上有一个低圆形中背叶的诊断性雄性第一生殖肢。新物种的形态明显适应洞穴生活，是印度已知的第一种真正的洞穴淡水蟹。
