AHT. 8. MILLIPEDS OF CENTRAL, AMERICA CHAMBERLIN. 59 



Genus CYLIONUS Cook. 



144. CYLIONUS CONSTRICTUS Pocock. 



Cylionus constrictus Pocock, Biol. Centr-Amer., Diplop., 1909, p. 127, pi. 9, 

 figs. 5-5f. 



Locality. — Guatemala: Volcan de Agua. 



Genus COLOBODESMUS Brolemann. 



145. COLOBODESMUS BIOLLEYI Brolemann. 



Colohodesnnis hioUcyi BuoLEJfANN. Ann. Soo. Ent. France, 1905, vol. 74, p. 

 350, pi. 8, figs. 8-12; pi. 9, figs. 13, 14. 



Locality. — Costa Kica : San Jose, Cache, Cariblanco. 

 Family POLYDESMIDAE. 

 Genus PERIDONTODESMUS Silvestri. 



146. PERIDONTODESMUS FLAGELLATUS Pocock. 



Pc7-idontodesmus flafjellotus Pocock, Biol. Centr.-Amer., Diplop., 1909, p. 

 136, pi. 10, figs. 4-Ag. 



Locality. — Guatemala : Cholhuitz. 



147. PERIDONTODESMUS ELECTUS Chamberlin. 



Peridontodesmiis electus Chambeklin, Trans. Auier. Ent. Soc, 1914, vol. 40, 

 p. 188, pi. 2, fig. 2. 



Locality. — -Costa Rica : Juan Vinas, Cartage, many specimens 

 taken in December, 1911 (W. M. Wheeler). 



Family CRYPTODESMIDAE. 



Genus CYNEDESMUS Cook. 



This genus was proposed primarily for a species from Grand 

 Canary; but as that species was not described the Cuban Crypto- 

 deswus omartientatus Karsch, which was included, must stand as the 

 genotype. While in the absence of a knowledge of the gonopods of 

 C. omamentatus the matter can not be wholly certain, there is little 

 doubt that this species is congeneric with certain other West Indian 

 species, as for example the Haitian caraihianus Chamberlin and 

 (/ranulofrons Chamberlin, which were described under Treseolohus. 

 These species do not seem to be generically distinct from the Mexican 

 and Central American species described by Pocock under Lopho- 

 desmus in the Biologia. Cynedesmus is, in consequence, here 

 adopted. 



148. CYNEDESMUS CELATUS (Pocock). 



Lophodesmiis cclatus Pocock, Biol. Centr.-Amer., Diplop., 1909, p. 133, 

 pi. 10, figs. 2-2a. 



Localities. — Guatemala : Volcan de Agua, Joyabaj, three specimens 

 (O. F. Cook, May, 1906). 



