36 



PROCEEDINGS OP THE ACADEMY OF 



[1880. 



gaerini M.-Edw. India. 



hispida Wood-Mason. Burmah. 



hydrodromus Gerst. 

 indica Latr. 



cam'cularis Westwood. 



? aitranlia Gerstaecker. 



? rotunda Freycinet. 

 infiata M.-Edw. 

 jagori von Martens. 

 Isevis Wood-Mason. 

 larnaudi A. M -Edw. 

 leschenaulti Edw. 



India (!), Mauritius, Tahita. 

 lugubris Wood-Mason. India, 



margaritaria A. M.-Edw. West Africa. 

 nilotica M. Edw. Nile. 



India. 



Pt. Natal. 



Philippines. 



India. 



Siam, 



obesa A. M.-Edw. Zanzibar, 



obtusipes (Stm.) A. M.-Edw. 



Japan, Philippine*, 

 perlata Edw. South Africa, Pt. Natal (!), 

 philippena von Martens. Philippines. 

 picta von Martens. Philippines* 



planata A. M.-Edw. Bombay. 



= ? guerini M. Edw. 

 siamensis A. M.-Edw. Siam. 



sinuatifrons M.-Edw. Unknown, 



stoliczkana Wood-Mason. Penang. 



subquadrata Gerst. 



= ? yrapsoides. 

 transversa von Martens. Australia, 



tumida Wood-Mason. Burmah. 



To this list I would add three more : 



Thelphusa emarginata nov. 



Carapax glabrous, longitudinally strongly arched. Post-frontal 

 crest continuous, nearly straight, obscurely orenulate, epibranchial 

 tooth obsolete, a tootli between the extremity of the post-frontal 

 crest and the angle of the orbit. Protogastric region very short, 

 front about one-fourth the width of carapax, slightly sinuate. 

 External angle of orbit slightly emargiuate. Anterolateral 

 margin cristate ; crest, however, soon becoming obsolete. Chelipeds 

 sub-equal, meros with the margins tuberculate and with a strong 

 spine on the distal portion. Upper and outer surface of carpus 

 with indistinct squamje, inner portion two-spined, the proximal 

 spine exhibiting a tendency to become bifid. Hands with the 

 upper margin obsoletely tuberculate, fingers roughened, not 

 gaping. Ambulatory feet slender, compressed. 



Is very near T. depressa Krauss, but ditfers from that species in 

 the narrower and straighter front, the tooth just behind the angle 

 of the orbit, and in the non-gaping fingers of the chelipeds. 



Length 34 mm., breadth 56 mm. 



West Africa, Du Chaillu ; Fori Natal, Dr. T. B. Wilson. 



The name is proposed on account of the emargination of the 

 orbit. 



Thelphusa enodis nov. 



Carapax smooth ; post frontal crest wanting. Epibranchial 

 tooth very small. Front narrow, strongly curved downward, its 

 margin concave, Chelipeds unequal, hands with the inferior 



