NO. 14 MILLIPEDS OF WEST INDIES AND GUIANA — LOOMIS 53 



lOMOIDES GLABRA, n. sp. 



Plate 3, fig- 5 



A male (type) and a female were collected at Christoph's Citadel, 

 Cape Haitien, Haiti, March 27, 1932. 



Diagnosis. — This species may be instantly distinguished from /. 

 hispidus by the complete lack of hairs on the dorsum or along the 

 outer margins of the segments. The tubercles of segment i are rela- 

 tively larger and more distinct. In addition the following differences 

 occur : 



The body is smaller and narrower, the male being 5.5 mm long and 

 1.2 mm broad, the female 7 mm long and 1.5 mm broad. The incisions 

 of the keels are narrower and dirt-filled in both specimens. 



Fig. 26.— lomoides glabra. Gonopod. 



Segment i has the anterior margin more definitely rounded al- 

 though still somewhat subhexagonal. Of the anterior row of four 

 tubercles, the inner two are double the size of the outer ones. There 

 are but four tubercles in the posterior row, the outer ones of the same 

 size as the corresponding ones in front but the inner two half the 

 size of the outer, hence contrasting very strikingly in size with the 

 pair in front. 



The gonopods show further differences, as seen in figure 26. 



Tv/'c.— U.S.N. M. no. 1105. 



PSOCHODESMUS Cook 



Psochodcsmiis Cook, Brandtia, p. 25, 1896. 



Xerodesmus Chamberlin, Proc. California Acad. Sci., vol. 12, p. 403, 1923. 



Tidopierus Chamberlin, Zoologica, New York Zool. Soc, vol. 3, no. 21, p. 420, 



1923. 

 Dominicodesmiis Chamberlin, Proc. Biol. Soc. Washington, vol. 36, p. 189, 1923. 



After examining a number of specimens of Psochodesmus crescen- 

 tis Cook from the type locality in Florida, and comparing them with 

 descriptions, illustrations, or specimens representing the above genera, 

 it is apparent that all these genera are synonyms of Psochodesmus. 

 Specimens of Dominicodesmus geophilus from many Haitian localities 



