STALK-EYED CRUSTACEA 213 



9. Pseudothelphusa terrestris. 



The lower margin of the front is strongly rimmed, 

 convex. The lateral teeth of the carapace are obliterated. 

 The outer margin of the fourth joint of the external 

 maxillipedes is convex, and gradually curving into the 

 anterior margin. The walking legs are not slender. 

 The inner lobe of abdominal appendage of the first 

 segment in the male is falcate. 



Mexico, found under stones in damp localities ; 

 Cuba. 



II. Front with a s7iperior margin or marginal line : — 



10. Pseudothelphusa equatorialis. 



PsendothelpJiusa equatorialis . . . Ortmann. 



Superior margin of front not keeled, smooth. Walking 

 legs elongate, the last joint but one at least twice as long 

 as wide. The sixth segment of the abdomen of the male 

 half as long as its proximal width. 



Ecuador. 



II. Pseudothelphusa verticalis. 



Superior margin of the front not keeled, smooth. 

 Walking legs elongate, with their last joint but one at 

 least twice as long as wide. The lower margin of larger 

 hand convex; lower margin of fixed finger straight. The 

 sixth segment of the abdomen of the male less than half 

 as long as its proximal width; the appendage of the first 

 segment has a twisted appearance. 



Mexico. 



