Zoology of the R.I. M.S. Investigator. 



Crustacea. Plate XLII. 



S. C. Mona-ul, del. 



la. 



1 Heterocarpus laevigatas. 2. Callianassa ligmcola. 3. Calastacus telix. 4. Pacliaraiiia spongicols 



Photo -etching, Survey of Inlia.' Offices, Calcutta., July, 1899. 



