A critical review of the centropagid genus Isias boeck (Copepoda : Calanoida) from Indian estuaries

Abstract

Comparatively very little attempt has been made to study the morphological features and interrelationships of the ccntropagid genera occurring in the Indian estuaries. The genus Isias Boeck is closely allied to Centropages Kroyer. but shows phylogenitic divergence in some taxonomic characters. Upto now, only three species have been described under the genus. viz. I.clavipes Boeck and I. tropica Sewell from the northern hemisphere and I.uniceps Bayly from the southern hemisphere.