MILLIPEDS OF MEXICO AND CENTRAL AMERICA 23 



OTHER LOCALITIES: Volcan Tajumulco, and El Porudnir, San Mar- 

 cos, Guatemala (Chamberlin 1952a). 

 Polylepiscus heterosculptus (Carl). 



Pachyurus heterosculptus Carl 1902, p. 635; Pocock 1909, p. 157. 



TYPE: Mus. Hist. Nat. Geneve. 



TYPE LOCALITY: Guatemala. 

 Polylepiscus heterosculptus pococki Hoffman 1954a, p. 53. 



TYPE: U.S. Nat. Mus., no. 2099. 



TYPE LOCALITY: Tumbala, Chiapas, Mexico. 

 Polylepiscus major (Chamberlin). 



Aphelidesmus major Chamberlin 1952a, p. 581. New combination, sug- 

 gested by R. L. Hoffman, who stated "there is no doubt it belongs 

 in Polylepiscus as the 3rd species without polygonal areas." 



TYPE: Chicago Mus. Nat. Hist. 



TYPE LOCALITY: Escobas, opposite Puerto Barrios, Guatemala. 

 Polylepiscus stolli Pocock 1909, p. 155. 



TYPE: British Mus. 



TYPE LOCALITY: Cholhuitz, Guatemala. 

 Polylepiscus trimaculatus Hoffman 1954a, p. 53. 



TYPE: U.S. Nat. Mus., no. 2098, 



TYPE AND PARATYPE LOCALITY: Sepacuite, Guatemala. 



Genus PSEUDAMPLINUS Hoffman 1954a, p. 51. 



TYPE SPECIES: Amplinus orphnius Chamberlin, by original designa- 

 tion. 

 Pseudamplinus areatus (Pocock). 



Amplinus areatus Pocock 1909, p. 151. 



Orthomorpha areatus Cook 1911c, p. 627; Hoffman 1954a, p. 51. 



TYPE: British Mus. 



TYPE LOCALITY: Retalhuleu, Guatemala. 

 Pseudamplinus armatus (Pocock). 



Amplinus armatus Pocock 1909, p. 153. 



Orthomorpha armatus Cook 1911c, p. 627; Hoffman 1954a, p. 51. 



TYPE: British Mus. 



TYPE LOCALITY: Mexico. 

 Pseudamplinus constrictus (Chamberlin). New combination. 



Amplinus constrictus Chamberlin 1953b, p. 67. 



TYPE: Chicago Mus. Nat. Hist. 



TYPE AND PARATYPE LOCALITY: West of San Pedro Sula, Honduras. 

 Pseudamplinus convexus (Carl). 



Pachyurus convexus Carl 1902, p. 633. 



Amplinus convexus Pocock 1909, p. 150. 



Orthomorpha convexus Cook 1911c, p. 628; Hoffman 1954a, p. 51. 



TYPE: Mus. Hist. Nat. Geneve (H) 



