On a Collection of Isaeidae (Crustacea, Amphipoha) from the Southern Indian Region

P Rabindranath

doi:10.1163/26660644-04102001

Abstract

Nine species of gammaridean amphipods, belonging to the family Isaeidae, are fully described and figured. Eight of these were collected from typical marine locations on the East and West coast of South India and one, namely Photis digitata K. H. Barnard, 1935, was obtained from a brackish water lake on the West coast of peninsular India between 9°7' and 9°16' N and 76°20' and 76°28' E. Five of the species described are already known from the Indian coasts; one species, Eurystheus digitatus Schellenberg, 1938, is a new record for the region; two others (Microprotopus bicuspidatus and Eurystheus anomalus) are new to science. Until more materials become available, the last species included in this report is provisionally assigned to the genus Megamphopus Norman and is described without a specific name.

Highlights

Material. — 13 males and 8 females were collected from among algal growths on submerged rocks at Pamban, Gulf of Mannar.The materials on which this short report is based were collected during two collection trips, one to Mandapam (Gulf of Mannar) and another to Thankasserry (Quilon, Kerala)
Analysis of the bottom samples taken from the Kayamkulam backwaters, a brackish water lake in Kerala, provided a small collection of amphipods
Mandapam is an ideal locality for collecting amphipods since, within a short distance one encounters various types of habitats like sandy or muddy flats, submerged boulders overgrown with algae and hydroids, and above all extensive coral reefs

Summary

Introduction

Material. — 13 males and 8 females were collected from among algal growths on submerged rocks at Pamban (near Mandapam), Gulf of Mannar.The materials on which this short report is based were collected during two collection trips, one to Mandapam (Gulf of Mannar) and another to Thankasserry (Quilon, Kerala).

Results

Conclusion