140 



BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



Chelipeds small, about as long as first leg ; lower margin of propo- 

 dus straight; manus suboblong, marginate below; fingers slender, 

 subequal, not gaping, dactylus a little the longer, and having a 

 tooth at the proximal third of its prehensile edge. 



First and second legs similar, the second 

 a little the longer, especially as to the last 

 two segments ; dactyli very slightly curved, 

 long-pointed. Third leg stout, exceeding 

 the second by the length of its dactyl and 

 half its propodus; lower edge of ischium, 

 merus and propodus armed with stout 

 spinules; postero-distal end of ischium 

 prolonged in a stout, curved spine, the 

 point of which is directed upward and 

 backward; dactylus more strongly curved 

 than in preceding legs, and gradually 

 tapering to a slender point. The small, 

 posterior leg, if extended, would about 

 reach the end of the merus of the third 

 leg; its dactylus is stoutish, nearly straight, the tip curved slightly 

 upward. 



Abdomen constricted at base of second segment, widest between 

 second and third segments, from which point it graduall}'^ narrows, 



FlQ. 83. PiNNlXA HETIXENS, 



EXDOGXATH OP OUTEE MAX- 

 ILLIl-ED OB" MALE HOLOTYPB. 



X 335. 



FlO. 84. PiXXIXA nETINENS, MALE HOLOTVrE, X 12. 0, ABDOMEN ; b, THIBD LEO, LOWEH 



SIDE ; C, LEFT CHELA. 



the third, fourth, and fifth segments with sides partially concave; 

 terminal segment much wider than long. 



Anterior and posterior margins of sternal segments granulate; 

 granules especially noticeable bordering posterior margin of cara- 

 pace. 



