204 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Diagnosis. — Front markedly produced beyond outer orbital angles,, 

 forming five subequal teeth. Merus of chelipeds unarmed, fingers 

 dark- tipped. 



Description. — The five interorbital teeth are flat, obtuse, closely 

 placed, and markedly produced beyond the outer orbital angles;. 



fronto-or})ital width about one-fifth width of carai^ace. Antero- 

 lateral teeth ten, shallow, outer orbital tooth small, next one rounded, 

 succeeding teeth becoming larger and more acute posteriorly; between 

 the teeth the margin of the carapace is marked with short closed fis- 

 sures. A single obscure postero-lateral tooth. Carapace slightly 



