101 



27. Paratelphusa (Oziotelphusa), sp. 



A single female specimen, mature, but much broken, from the Garo Hills. 

 Its carapace is fifths inch long, 1,'. inch in greatest breadth, and ,'Vths inch deep. 

 It probably belongs to the same group as hydrodromus, having (1) the same form 

 of mandibular palp ; (2) flagellate exopodites to the maxillipeds ; and (3) a 

 cervical groove that runs towards the outer orbital teeth but becomes lost 

 before reaching the post-orbital crests. Also the epigastric crests overlap, and 

 are in advance of and independent of the post-orbital crests, and are thin and 

 almost trenchant. 



The characteristic featm-es of the species, so far as they can be made out 

 from the single damaged specimen, are as follows :— 



The front is square-cut and vertically deflexed, and has its edge so much 

 turned in that the antennular fossae are mere chinks ; its edge is practically 

 straight and is not reduplicated as it is in the two preceding species. 



The praecardiac region and an area of the epibranchial region on either side 

 of it are considerably sunken. 



The epigastric crests. are oblique. The post-orbital crests are thin and 

 subtrenchant in their inner half, and then become inflated and indistinct, but 

 can be traced to the lateral epibranchial tooth. 



The legs are long and slender ; in the second pair the propodites are about 

 three and a half times as long as broad. 



•4022 



Ciaro Hills. H. H. Godwin-Austen. 1 J . 



Subgenus IV. — Phricotelphusa. 

 Type : Phricotelphusa callianira, de Man. 



No spine on upper border of merus of chelipeds ; no large spines or teeth 

 —except, perhaps, the outer orbital angle and a lateral epibranchial tooth— on 

 antero-lateral borders of carapace. 



Epigastric crests sharp or sharpish, independent of and well in advance of 

 the sharp post- orbital crests. 



The exopodite of the external maxillipeds is non-flagellate in all the 

 species but one, and in that species it is variable in size and not constant in 

 occurrence. 



The cervical groove is distinctly cut only where it bounds the mesogastric 

 area posteriorly ; elsewhere it is hard to trace. 



The antennal flagellum is always short, and may be vestigial and hidden, 

 or altogether wanting. 



