CHECKLIST OF THE AMPHIBIA OF MEXICO 9 



RHYACOSIREDON RIVULARIS Taylor 



Rhyacosiredon rivularis Taylor, Herpetologica, vol. 1, 1940, pp. 171-176, pi. 17, 

 fig. 1. 



Type.— EHT-HMS No. 16388. 



Type locality. — 13 kilometers west of Villa Victoria, Mexico, Mexico. 



Range. — Known only from the type locality. 



RHYACOSIREDON LEORAE Taylor 



Rhyacosiredon leorae Taylor, Univ. Kansas Sci. Bull., vol. 29, 1943, pp. 345-347, 

 pi. 26, fig. 3. 



Type.— EHT-HMS No. 22560. 



Type locality. — Near Rio Frio, Mexico. 



Range. — Known only from the type locality, a small stream, Rfo 

 Frio, which passes through a village of the same name in the state 

 of Mexico, at a point only a few hundred meters from the M^xico- 

 Puebla border, then flows into the state of Puebia after about a kilo- 

 meter. The species occurs certainly in both states. 



RHYACOSIREDON ALTAMIRANI (Dugfes) 



Amblystoma altamirani Duces, Description d'un axolotl des Montagues de las 

 Cruces (Amblysioma altamirani, A. Dug^s), 1895, pp. 1-6, 1 pi. , figs. 1-8. — 

 Smith and Necker, Anal. Esc. Nac. Cienc. Biol., vol. 3, 1943, pp. 183-185, 

 pi. 1, figs. 2-3. 



Rhyacosiredon altamirani Dunn, Proc. New England Zool. Club, vol. 10, 1928, 

 pp. 85, 86.— Taylor, Univ. Kansas Sci. Bull., vol. 25, 1938 (1939), pp. 262- 

 263, pi. 24, fig. 2; Herpetologica, vol. 1, 1940, p. 176, pi. 17, fig. 2. 



Type. — Museo Alfredo Duges, Guanajuato, Mexico (6 co types). 



Type locality. — Manantial de los Axolotes, Serrania de las Cruces, 

 Valle de Mexico, Distrito Federal, Mexico. 



Range. — High mountains of central Mexico, southern Distrito 

 Federal, and northern Morolos. KJiown or recorded from numerous 

 localities in the Ajusco Mountains. Known from Distrito Federal: 

 Manantial de los Axolotes, Desierto de los Leones, Canada de Contre- 

 ras; Morelos and Mexico:^^ Lagunas de Zempoala. 



RHYACOSIREDON ZEMPOALAENSIS Taylor and Smith 



Rhyacosiredon zempoalaensis Taylor and Smith, Proc. U, S. Nat. Mus., vol. 95, 

 1945, pp. 527-529. 



T?/pe.—U.S.N.M. No. 116617. 



Type locality. — One of the nearly dry lake beds of the Zempoala 

 lakes, Morelos, Mexico. 



Range. — Known only from type locality. 



w The "Lakes of Zempoala" are at the M6xico-Morelos border; undoubtedly the species occurs on both 

 Sides of the boundary. 



