308 Carcinological Fauna of India. 



Frout "about a third the greatest breadth of the carapace, faintly 

 notched and grooved in the middle line. 



Autero-lateial borders cut into five teeth followed by a procurved 

 spine. 



Merus of external maxillipeds having the external angle very 

 slightly produced. 



Chelipeds unequal, much longer and more massive than the legs, 

 the larger one about three times the length of the carapace : they are 

 smooth. and unarmed, except that the anterior border of the arm is 

 finely seiTulate and that one of the serrations at either the near or far 

 end (rsirely at both) is enlarged to form a spine. In the smaller 

 cheliped the fingers are slender hooked and finely toothed, and are 

 rather longer than the slightly swollen palm : in the larger cheliped 

 they are stouter and more coarsely toothed and are shorter than the 

 swollen palm. 



Legs slender, tlic longest pair are hardly more than twice the 

 length of the carapace; the dactylus of all, tliough compressed, is 

 slender. 



In the Indian Museum are 16 specimens from off Ceylon 34 fathoms 

 (besides 3 from Mauritius and 2 from Samoa). 



In the largest specimen (from Mauritius) the carapace is 95 

 millim. long and l-i'S millim. broad. The Indian specimens, though 

 they include egg-laden females, are much smaller. 



PsoPHETicus, Wood-Mason. 



jPsop/iettcus, Wood-Maaou, Admin. Rep. Marine Snrvey of India, 1890-91, p. 2U 

 (name only) : Alcock, Investigator Deep-Sea Bracbynra, p. 72. 1^1 J 



Fsopheticus in several respects connects Carcinoplax and Pseudo- 

 rhomhila with Eucraie, and hence serves to emphasize the opinion of 

 Miers as to the closeness of the ties that connect the three latter genera. 



As in PseiidorJiomhila and Carcinoplax, the carapace is much 

 broader than long and the orbital hiatus is open. As in Psetidorhombila, 

 the 'dactjlus of the last pair of legs is styliform. As in Encrate, the 

 fronto- orbital ^border occupies almost all the breadth of the carapace. 



Carapace deepish, quadrilateral or subquadrilatei-al, a good deal 

 broader than long, with the regions hardly defined, moderately convex 

 fore and aft, fl.at from side to side. 



Fronto-orbital border little, if at all, less than the greatest breadth 

 of tbe carapace, the antero-lateral borders of the carapace therefore — 

 which are shoi't — are either very slightly arched or are in the same 



650 



