Indian Journal of Geo-Marine Sciences

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Report on commensal shrimp Ensiger custos (Forskål, 1775) (Caridea: Palaemonidae) associated with bivalve Pinna bicolor Gmelin, 1791 in Palk Bay, India


Affiliations
1 Centre for Climate Change Studies, Sathyabama Institute of Science and Technology, Rajiv Gandhi Salai, Chennai, Tamil Nadu – 600 119, India/ Sathyabama Marine Research Station, Sallimalai Street, Rameswaram, Tamil Nadu – 623 526, India

For the first time, a Pinna shell associated shrimp Ensiger custos was documented from the shallow seagrass beds of Palk Bay, India. The shrimp specimen was identified based on the morphological characteristics such as chela of the first pereiopod cannulate, absence of distal teeth on the rostrum, antennal spine minute and dactylus of the second pereiopod with single large triangular tooth in the proximal half. The E. custos was found to be closely related to E. custoides. In the present study, E. custos shrimp was found associated with Pinna bicolor Gmelin 1971.

Keywords

Biogeography, Bivalve, Caridean shrimp, India, Symbiotic
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  • Report on commensal shrimp Ensiger custos (Forskål, 1775) (Caridea: Palaemonidae) associated with bivalve Pinna bicolor Gmelin, 1791 in Palk Bay, India

Abstract Views: 32  | 

Authors

S Prakash
Centre for Climate Change Studies, Sathyabama Institute of Science and Technology, Rajiv Gandhi Salai, Chennai, Tamil Nadu – 600 119, India/ Sathyabama Marine Research Station, Sallimalai Street, Rameswaram, Tamil Nadu – 623 526, India
Amit Kumar
Centre for Climate Change Studies, Sathyabama Institute of Science and Technology, Rajiv Gandhi Salai, Chennai, Tamil Nadu – 600 119, India/ Sathyabama Marine Research Station, Sallimalai Street, Rameswaram, Tamil Nadu – 623 526, India

Abstract


For the first time, a Pinna shell associated shrimp Ensiger custos was documented from the shallow seagrass beds of Palk Bay, India. The shrimp specimen was identified based on the morphological characteristics such as chela of the first pereiopod cannulate, absence of distal teeth on the rostrum, antennal spine minute and dactylus of the second pereiopod with single large triangular tooth in the proximal half. The E. custos was found to be closely related to E. custoides. In the present study, E. custos shrimp was found associated with Pinna bicolor Gmelin 1971.

Keywords


Biogeography, Bivalve, Caridean shrimp, India, Symbiotic