334 A. Alcock — Cardiological Fauna of India. [No. 3, 



Subfamily Asthenognathinje, Stimps. 

 Chasmocarcinops, n. gen. 



Carapace deep, convex fore and at't and declivous anteriorly : its 

 greatest breadth is quite posterior, so tliat the postero-lateral borders, 

 which are blunt, are anteriorly-convergent, though slightly so : the 

 anterolateral borders are sharp and form an elegant curve with the 

 anterior border : the regions are nearly as well defined as they are in 

 Scalopldia: its length is hardly less than its breadth. 



The fronto-orbital border is considerably more than a third, but 

 the front (which is bilobed) is only about a sixth, the greatest breadth 

 of the carapace. 



The orbits, which are in the usual marginal position, are small, and 

 the eyestallcs, which are immovable, are shrunk within them : the eyes 

 are minute. 



The autennulary flagella are large and cannot be retracted into 

 the antennular pits, which are filled entirely by the basal joint. 



The antennal flagella are long — considerably more than a third the 

 length of the carapace — and stand in the orbital hiatus. 



Epistome sunken and not altogether well demarcated from the 

 palate. The buccal cavern has its antero-external angles rounded off, 

 and is not nearly closed by the external maxillipeds : these have the merus 

 much shorter and narrower than the ischium, oval and somewhat oblique, 

 and the fligellum appears to articulate with the summit of the merus. 



The chelipeds are about as long as the legs and are very unequal 

 in the male. 



The third pair of legs are slightly the longest. As in Scolopidia 

 the dactylus of the last pair of legs is recurved. 



The abdomen in both sexes is narrow, not nearly occupying all the 

 space between the last pair of legs, and in the male consists of 5 

 pieces, the 3rd-5th segments being fused. Tn the male also, as in 

 Camatopsis, there is, on either side, a narrow plate intercalated between 

 the 4th and 5th segments of the sternum and covering the external 

 genital ducts. 



This genus more clearly than an}' other connects the Bhizopinse and 

 the Finnotheridae together. 



35. Chasmocarcinops gelasimoides, n. sp. 



Carapace nearly as long as broad, its surface abundantly sprinkled 

 with vesiculous granules, its free margins rather sparsely ciliated : all 

 the regions are distinguishable, and the cardiac and posterior lobe of 

 the gastric regions are defined by deep impressions : the an tero- lateral 



