NO. 14 MILLIPEDS OF WEST INDIES AND GUIANA — LOOMIS TTJ 



Second segment with a pronounced anterior corner or shoulder 

 obscured from the side by the first segment. 



Ensuing segments each with a strong transverse median depression, 

 in front of which the surface is sculptured with circular and crescentic 

 impressions ; the posterior half of the segment smooth, higher, and 

 much more strongly convex, the large pore half way to the back 

 margin and opening from the apex of a broad but distinctly evident 

 swelling. Legs and pores terminating on the antepenultimate segment, 

 possibly indicating that the animals lack one moult of maturity. 



Last segment with the apex slightly exceeded by the moderately 

 inflated anal valves, which meet in a deep groove and lack compressed 

 margins. 



Gonopods completely lacking a median plate, the mesial junction of 

 the lateral lobes fully exposed in front. Apical halves of the posterior 

 lobes bent back and carried outside the body, and their shape indicates 

 that they are incapable of retraction within the body at any time. 



Coxae of the fifth male legs with prominent lobes. 



AZYGOBOLUS TUMIDUS n. sp. 



Plate 2, figs. I and 2 



Many specimens, including the male type, were collected at Marigot, 

 St. Martins Island, March 17, 1932. Other specimens were found at 

 Point-a-Pitre, Guadeloupe, March 11, 1932. 



Description. — Length of the largest specimen 29 mm, width 1.2 mm. 

 Number of segments 42 to 46. 



Living color dark brown throughout. 



Head smooth and shining throughout ; vertex without a sulcus ; 

 clypeus with eight setae, the interval between the second and third setae 

 on each side greater than that between the first and second or the 

 third and fourth ; labrum shallowly emarginate, the teeth inconspic- 

 uous; antennae too short to reach the posterior margin of segment i, 

 sense cones four ; ocelli 28 to 34, in five or six series paralleling the 

 first segment and forming a subtriangular patch. 



First segment with a very pronounced, narrow raised rim extending 

 from the lower corner of the eye to the posterior margin ; surface 

 smooth. 



On the remainder of the body the strongly convex posterior halves 

 of the segments give the animals a submoniliform appearance much 

 like that of Nannolenc. The pore swellings are not very apparent 

 from above, but when viewed from the side they are immediately 

 evident. 



