NO. 14 MILLIPEDS OF WEST INDIES AND GUIANA LOOMIS 45 



Family CHYTODESMIDAE 



DOCODESMUS HAITIENSIS Chambe lin 



Plate 3, figs. I and 2 



Docodcsiniis haiiicnsis Chamberlin, Bull. Mus. Comp. Zool., vol. 62, p. 216, 1918. 



A number of specimens were found within the walls of Christoph's 



Citadel, near Cape Haitien, Haiti, March 2y, 1932. 



DOCODESMUS SCULPTURATUS, n. sp. 



Plate 4, fig. I 



Many specimens, including the male type, were collected in a 

 " banana hole " 3 or 4 miles from Nassau, New Providence, Bahama 

 Islands, January 3, 1932. 



Diagnosis. — -This is the smallest and relatively the most coarsely 

 sculptured of the genus. The dorsal tubercles are large and conspicu- 

 ous and the sulci in the margins of the segments are particularly ap- 

 parent ; the posterior margins of the segments, especially segments 

 18 and 19, are strongly scalloped. 



Description. — Length varying from 5 to 7 mm, width from i to 

 1.3 mm. 



Living color cinnamon-brown above, lighter beneath. 



Body more convex than in the other species and the sculpturing 

 coarser ; the sulci between the areas of the front margin of the first 

 segment and the lateral and posterior margins of the other segments 

 are particularly deep ; the transverse convex areas on the dorsum of 

 the body segments are not especially evident but the tubercle at the 

 center of each area is large and high. Lobation of the lateral carinae 

 as in the other species. 



Head with a slightly elevated, granular area on the vertex, crossed 

 by a median depression ; clypeus continuous with the front. 



First segment relatively longer at the middle than in the other 

 species, the posterior margin on each side of the median portion 

 directed forward more obliquely, surface with 10 large tubercles in 

 2 rows, with additional finer granulations. 



Ensuing segments with four longitudinal rows of large tubercles, 

 apparently three tubercles in each row, but in reality the third eleva- 

 tion is formed by an enlarged elevated area of the margin, immediately 

 behind the row ; the other margmal areas are smaller and project 

 as distinct scallops. Between each pair of the enlarged areas of the 

 posterior margin there are two smaller areas on all but the last three 

 segments ; on segments t8 and 19 the posterior margin is wholly occu- 



