A new species of Pseudosesarma Serène & Soh, 1970 (Crustacea: Brachyura: Sesarmidae) from Cochin in southwestern India

Abstract

A new species of mangrove sesarmid crab of the genus Pseudosesarma Serène & Soh, 1970, is described from Cochin, southwest India. The species superficially resembles P. edwardsii (De Man, 1887), known from Myanmar and many parts of India; the proportions of the carapace and male pleon also ally it with P. crassimanum (De Man, 1887) from Myanmar, Sri Lanka and Southeast Asia. Pseudosesarma glabrum n. sp., however, is easily separated from P. edwardsii and P. crassimanum primarily by the almost glabrous dorsal surface of the carapace and the distinctive form of its male first gonopod.

Checklist of brachyuran mangrove crabs of Kerala, India

“…Among different species, Parasesarma bengalense was reported for the first time from the western coast of India and Clistocoeloma lanatum was reported for the first time from Kerala mangroves. Pseudosesarma glabrum was one of the rare species and was recently reported from Cochin in southwestern India (Ng et al 2017). Parasesarma plicatum was the common crab species encountered throughout west coastline mangrove ecosystems of Kerala.…”

Morphometry and Length/Width-Weight Relationship of Psuedosesarma glabrum Inhabiting Tropical Mangroves, South-West Coast of India

“…In this study, the length/width-weight relationships of P. glabrum were done. They are semiterrestrial crabs inhabiting the intertidal mixed mangrove zones along the southern Vembanad lake system (Ng et al, 2017). An extensive sampling was carried out and a total of 290 Samples comprising 162 males and 128 females were examined during the period of June 2019 -November 2020.…”

“…Available information on relative growth of grapsids is still inadequate to establish allometric trends in this heterogeneous family (Fransozo and Flores, 1999). With these research inputs, the aim of this study is to provide baseline data on length/width-weight relationship and morphometric analysis of Psuedosesarma glabrum (Ng et al, 2017) is a newly recorded semi-aquatic crab widely distributed in the intertidal mixed mangrove zones along the Vembanad ecosystem, in Kerala, India.…”