PRELIMINARY REPORT OF THE COLOURATION OF FRESHWATER CRAB, GEOTHELPHUSA DEHAANI(WHITE), WITH SPECIAL REFERENCE TO ITS DISTRIBUTION

Abstract

This report deals with colourations of freshwater crabs, Geothelphusa dehaani (WHITE), with special reference to its distribution in Kanagawa and neighbouring Prefectures. In adult crab, the colourations appeared on the carapace and thoracic legs of this species can be distinguished fundamentally in three types as shown below : [table]