512 ME. B. I. POCOCK ON THE 



c? . Flatter than the $ , Copulatory feet small, curved, 

 terminating in two slender processes, one of which is cuxled 

 backwards. 



Length : $ , 49 mm., width 7*5 ; S, 45 mm,, width 6-5, 

 Locality. Fond de Jacques, St. Lucia ( G. A. Bamage). 



STEOKaTLOSOMA COABCTATTJM (SatlSS.). 



Polydesmus coarctatus, Sauss. Faun. Myr. Mex. p. 39, fig. 18 (ex Mem. 

 Soc. Fhys. Geneve for 1860). 



? Paradesmus coarctatus, Humb. §• Sauss. Verk. s.-b. Ges. Wien, xix. 

 pp. 670, 671 (1869). 



Paradesmus vicarius, Karsch, Arch. Nat. 1881, p. 38, pi. iii. fig. 8. 



Strongylosoma Poeyi, BoUman, Ent. Am. iii. p. 81 (188/) ; id. Proe. 

 U.S. Nat. Mus. 1888, p. 336 (as Paradesmus). 



Localities. Union Island, Barbadoes {G. Smith), Dominica 

 (^G. A. Itamage), Jamaica {T. Toivnsend). 



Strongylosoma semibtigostjm, Pococh, " Contrihutions to 

 our Knowledge of the Myriopoda of Dominica,^'' Ann. Mag. Nat. 

 Hist. (6.), li. p. 477, pi. xvi. fig. d. 



Locality. Dominica {G. A. Ramage). 



Obontopeltts subteeeaneus (Sauss.). 



Polydesmus subterraneus, Sauss. in Linn. Ent. xiii. p. 323 (1869) ; Faun. 

 Myr. Mex. p. 44, pi. i. figs. 6, 7- 



Locality. Cuba (Griotto of Cotilla). 



A specimen of this species in the British Museum collection 

 agrees closely with de Saussure's figure and description. 



The copulatory foot is somewhat complicated ; it consists of 

 two processes closely applied together ; the upper one is a some- 

 what hammer-shaped piece, of which one end of the head is long 

 and produced inwards, with the apex lightly curled ; the other 

 piece expands distally, then abruptly narrows to a long, flexible, 

 coiled flagellum. 



*Odo]sitopeltis Sallei (Sauss.). 



Polydesmus Sallei, Sauss. Faun. Myr. Mex. p. 42, pi. ii. fig. 8. 



Locality. San Domingo, Haiti. 



According to de Saussure this species approaches the genus 

 Strongylosoma so far as the development of its keels is concerned. 

 These organs are widely separated, rise a little above the middle 

 of the side, are horizontal, with the anterior angle rounded, the 

 posterior squared. 



Length 34 mm. 



