72 



1 male and 1 small female from the Andamans, 240-220 fms. : 1 small 

 female from the Andamans, 238-290 fms. : 1 8 specimens of both sexes from the 

 Travancore coast, 430 fms. 



This species is a true Carcinoplax (Curtonotus), as I have assured myself by 

 actual comparison with specimens of C. longimanus DeHaan, and of another 

 Indian Carcinoplax (from the Gulf of Martaban, 53 and 67 fms.) that appears 

 to be only a variety of C. longimanus. 



From these the present species chiefly differs in its broader and more pro- 

 minent front and shorter chelipeds. 



The removal of this species to Carcinoplax does not affect the integrity of 

 the genus Nectopanope (typified by Nectopanope rhodobaphes), which is a Cancroid 

 genus closely allied to Heteropanope and Eurycarcinus. 



PsoPHETicus, Wood-Mason. 



Wood-Mason, Admin. Rep. Marine Snrvey of India, 1890-91, p. 20 (name only). 



Carapace transverse, perfectly square, moderately convex fore and aft and 

 declivous anteriorly, nearly flat from side to side, the regions hardly indicated. 



Front prominent, square-cut, about one-third the greatest breadth of the 

 carapace, its free margin sharp entire and laminar : antero-lateral borders about 

 half the length of the postero-lateral and in the same straight line with them, 

 the junction being marked by a spine. 



Orbits shallow, affording no concealment to the eyes ; the hollow for the 

 rather slender eyestalk is very distinctly delimited from that in which the large 

 reniform eye rests : the outer orbital angle is dentiform and very prominent. 



The antennules fold quite transversely, their fossJB are widely open to the 

 respective orbits. 



Basal antenna-joint short and slender, the next joint reaches the front ; the 

 flagellum, which lies in the orbital hiatus, is much longer than the orbit. 



Epistome sufficiently broad fore and aft, well delimited from the buccal 

 cavern. The ridges of the endostome are faint, but the expiratory canals are 

 well-defined grooves. The pterygostomian regions are acutely carinated by the 

 bulging of the expiratory canals. The external maxillipeds are just like those 

 of Carcinoplax (Curtonotus), but the gap between them and the front of the 

 buccal cavern is somewhat wider. 



Chelipeds moderately massive, of normal length, slightly unequal in the 

 male and still less so in the female. Legs long, moderately stout, almost hairless, 

 some of the joints are spiny : dactyli long and slender. 



The abdomen of the male consists of seven distinct segments and occupies 

 all the space between the last pair of legs. 



