28 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



Apex of the last segment rather broadly rounded and not separately 

 produced, being exceeded by the anal valves, which lack compressed 

 margins. 



Preanal scale large, broad, the posterior margin rounded-transverse, 

 the lateral angle on each side somewhat thickened or inflated. 



Gonopods as shown in figure 13, d and e. They lack a median plate, 

 and the distal half of the posterior lobes are bent back outside the 

 body with their tips reaching above the coxae of the next pair of legs. 

 Inner gonopods simple, the tips greatly drawn out, almost hairlike 



(fig- 13, /)• 



Coxae of the fifth male legs each with an erect lobe bent forward 

 at the apex (fig. 13, g). 



Type.—V.S.'^M. no. 1096. 



TRIGONIULUS LUMBRICINUS (Gerstaecker) 



Spiroholus lumbricinus Gerstaecker, Gliederthier-fauna Sansibar, p. 516, 1873. 

 This widespread tropical species was found in St. Kitts, Dominica, 

 Martinique, British Guiana, and Dutch Guiana. 



SPIROSTROPHUS NARESI (Pocock) 



Spiroholus naresii Pocock, Ann. and Mag. Nat. Hist., vol. 11, p. 252, 1893. 



This species was found in abundance in Dominica, Martinique, 

 Guadeloupe, and St. Lucia. 



Order MEROCHETA 



Family STRONGYLOSOMIDAE 

 ORTHOMORPHA COARCTATA (Saussure) 

 Polydesmn^ coarctata Saussure, Mem. Myr. Mex., p. 297, i860. 



This milliped was found in St. Eustatius, St. Kitts, St. Martins, 

 Antigua, Guadeloupe, Dominica, Martinique, St. Lucia, Bequia, Car- 

 riacou, Trinidad, and Dutch Guiana. 



ONCIUROSOMA sp. 



Three 19-segmented specimens of this genus were collected about 

 70 kilometers from Paramaribo, Dutch Guiana, near the railway to 

 the Cable Station on the Surinam River, March 3, 1932. 



Although they probably represent a new species, as none exceeds 

 II mm in length, their structural characters, particularly those of the 

 male, have not fully developed and it is inadvisable to give them spe- 

 cific designation. From the form of the lateral keels and the last seg- 



