196 DR. J. Q. DE MAIf ON THE PODOPHTHALMOTJS 



is dentate, extends transversely a little more outward than tlie 

 equally long posterior portion, and is somewhat compressed ; 

 both portions are parallel to one another. The antero -lateral 

 portion being twice emarginate, two teeth are observed behind 

 the obtuse external orbital angle ; these teeth have the same 

 size and shape as the extraorbital tooth, being obtuse and 

 rounded. A small tubercle lies nearly on the middle of each 

 postero-lateral region. The pterygostomian regions are reticu- 

 lated as in Sesarma. The third joint of the outer foot-jaws 

 is oval, being scarcely longer than broad. The terminal somite 

 of the abdomen of the female is only partially pushed into the 

 penultimate segment, at least in the specimen before me. 



Having no male individuals I cannot describe the chelipedes 

 of that sex ; but in the female specimen they are small and 

 equal to one another. They are everywhere clothed with the 

 same down as is found on the upper surface of the carapace, 

 and they are quite unarmed ; the convex outer and inner surfaces 

 of the hands are smooth, though rather coarsely punctate, and 

 the upper margin of the palm is armed with a longitudiDal crest. 

 The fingers are smooth ; the upper margiil of the mobile finger 

 is punctate, and both fingers are armed with five or six small 

 teeth which terminate in pointed horny tips. 



The ambulatory legs are similar to those of G. JBalanscs ; they 

 are unarmed, covered with a close down, and are somewhat 

 hairy, but the slender, little arcuate dactylopodites are unarmed 

 and scarcely hairy, and gradually taper into a very acute point. 



Dimensions of the single specimen :— 



.?, 



millim. 



Distance between the extraorbital teeth 8| 



Length of the carapace , 7^ 



Breadth of the front 5^ 



Subtribe Oxystomata. 



Eamily Calappid^. 



Grenus Calappa, Fair. 



106. Calappa philaegitts, Z. 



Calappa (Lophos) pliilargius, de Haan, Fauna Japonicja, Crustacea, 

 p. 71, tab. xix. fig. 1. 



