Occasional Papers of the Museum of Zoology 51 



One female among- bromeliads on ground at 7,600 feet, 

 July 19. 1913. 



Holotype, M. C. Z., 5,138. 



Resembles T. constrictus Peters, but differs — c. g., in lack- 

 ing the anterior row of larger tubercles on the collum, in 

 having two rows of tubercles, instead of but one, on the sec- 

 ond tergite, in having sternal spines only from thirteenth seg- 

 ment caudad, and conspicuously in having the sterna and legs 

 free from true granulations. 



Dromodesmus, gen. nov. 



Body composed of head and 20 segments. 



Sternum of nineteenth segment narrowed caudad, the pos- 

 terior pair of legs being rather close together and projecting 

 directly caudad, or nearly so. No spines on this sternum, but 

 preceding ones of posterior and middle segments with a pair 

 of spines at bases of posterior pair of legs. 



Legs exceptionally long. 



Keels of anterior and median regions well developed, car- 

 ried high, margins smooth, and posterior angles of all from 

 the second caudad conspicuously produced ; the posterior keels 

 reduced anteriorly, leaving only the caudolateral processes 

 prominent, the posterior end of body narrowing conspicuously 

 caudad. Dorsal surface of metazonites densely granular and 

 with longer tubercles in transverse series. Repugnatorial 

 pores on segments 5, 7, 9, 10, 12, 13, 15-19. Cauda triangular, 

 caudal apex narrowly truncate. 



Gonopods of male with telopodite deeply bifid, both 

 branches segmented, the outer (anterior) toward base, the 

 inner (posterior) toward middle; outer branch in genotype 

 trifid. with two processes acute and one plate-like; the inner 

 branch distally bifid. 



Genotype, Dromodesmus longipes, sp. nov. 



