1 08 U.S. NATIONAL MUSEUM BULLETIN 266 



Platydesmus perpictus Pocock 1903, p. 47. 



TYPE: British Mus. 



TYPE LOCALITY: Senahu, Guatemala. 



PARATYPE LOCALITIES: Cholhuitz, Guatemala, and Belize, British 

 Honduras. 



OTHER LOCALITY: Chichivac, near Tecpan, Guatemala (Chamberlin 

 1952b). 

 Platydesmus polydesmoides Lucas 1843, p. 52. 



TYPE: Location unknown (H). 



TYPE LOCALITY: Guatemala. 

 Platydesmus subovatus Loomis 1964a, p. 127. 



TYPE: Chicago Nat. Hist. Mus. 



TYPE LOCALITY: Almirante, Bocas del Toro Prov., Panama. 

 Platydesmus taureus Loomis 1964a, p. 128. 



TYPE: Chicago Nat. Hist. Mus. 



TYPE LOCALITY: Negra Creek, Almirante, Bocas del Toro Prov., 

 Panama. 

 Platydesmus triEmguIifer Pocock 1903, p. 45. 



TYPE: British Mus. 



TYPE AND PARATYPE LOCALITY: Volcan de Acatenango, 

 Guatemala. 



OTHER LOCALITY: Izabal, Escobas, Guatemala (Chamberlin 1952b). 



Genus RHAPHONOTUM Attems 1951, p. 198. 



TYPE SPECIES: Rhaphonotum tuherculosum Attems, by present 

 designation. 

 Rhaphonotum reimoseri Attems 1951, p. 198. 



TYPE: Naturh. Mus. Wien. (H) 



TYPE AND PARATYPE LOCALITY: Costa Rica. 

 Rhaphonotum tuherculosum Attems 1951, p. 198. 



TYPE: Naturh. Mus. Wien. (H) 



TYPE AND PARATYPE LOCALITY: Hambourg Farm, Costa Rica. 



Order POLYZONHDA 



KEY TO THE FAMILIES OF POLYZONHDA 



1. Eyes absent; head narrowed forward or prolonged into a beak; pro- 

 zonites decidedly smaller than the metazonites producing constric- 

 tions between the metazonites SIPHONOPHORIDAE 



One or more ocelli each side; head not strongly narrowed forward or 

 produced into a beak; prozonites not forming constrictions between 

 the metazonites POLYZONIIDAE 



