34 BULLETIN 194, UNITED STATES NATIONAL MUSEUM 



Suborder Opisthocoela Nicholls 



Opisthocoela Nicholls, Proc. Linn. Soc. London, voL 128, 1915-1916 (1916), 

 p. 86. 



Family RHINOPHRYNIDAE Gunther '' 



Rhinophrynidae Gunther, Catalogue of the Batrachia Salientia in the collection 

 of the British Museum, 1858 (1859), p. 127. 



Genus RHINOPHRYNUS Dumeril and Bibron 



Rhinophrymis Dum:6rtl and Bibron, Erp6tologie g^n^rale, vol. 8, 1841, p. 757- 

 758.— Kellogg, U. S. Nat. Mus. Bull. 160, 1932, pp. 17, 24-25.— Walker, 

 Occ. Pap. Mus. Zool. Univ. Michigan, No. 372, 1938, pp. 1-11, figs. 1-3. 



Genotype. — Rhinophrynus dorsalis Dumeril and Bibron. 

 Range. — Tamaulipas to Guatemala. 

 Species. — One. 



RHINOPHRYNUS DORSALIS Dumgril and Bibron 



Rhinophrynus dorsalis Dtjmeril and Bibron, Erp^tologie g^n^rale, vol. 8, 1841, 

 pp. 758-760, Atlas, 1854, pi. 91, figs. 2, 2a.— Orton, Occ. Pap. Mus. Zool. 

 Univ. Michigan, No. 472, 1943, pp. 1-7, pi. 1 (tadpole).— Taylor and 

 Smith, Proc. U. S. Nat. Mas., vol. 95, 1945, pp. 550-551, pi. 2, fig. 2. 



Rhinophryne dorsalis Gadow, Proc. Zool. Soc. London, 1905, vol. 2, pp. 193-205. 



Rhinophrynus rostratus Brocchi, Bull. Soc. Philom. Paris, ser. 7, vol. 1, 1877. p. 

 196 (Tehuantepec, Oaxaca, Mexico; types in Mus. Hist. Nat. Paris). 



Type.— Mus. Hist. Nat. Paris No. 693 (No. 743). 



Type locality. — Veracruz, Veracruz, Mexico. 



Range. — Atlantic lowlands from Tamaulipas and Pacific lowlands 

 from the Isthmus of Tehuantepec southward to Guatemala, including 

 Yucatdn. The species has been reported from Tamaulipas: Hacienda 

 la Clementina; Veracruz: Potrero Viejo, Veracruz, C6rdoba, Hacienda 

 Cerro del Gallo, Tuxpam, Cuatotolapam ; Oaxaca: Tehuantepec, 

 borders of the Gulf of Tehuantepec, Tuxtepec; Chiapas: La Esperanza, 

 Cruz de Piedra, Colonia Soconusco; Campeche: Tuxpeiia Camp, 

 Champot6n, Encamacion; Tabasco: Montecristo ; Yucatan: Cliichen 

 Itza; Quintana Roo: Xcopen. 



Suborder Anomocoela Nicholls 



Anomocoela Nicholls, Proc. Linn. Soc. London, vol. 128, 1915-1916 (1916), p. 86. 



Family PELOBATIDAE Lataste 



Pelobatidae Latasie, Gompte Rendu Assoc. Frang. Avan. Sci., 1878 (1879), pp. 

 761-762. 



^ Formerly placed in the suborder Procoela. Its true relationships have been shown by Walker (Ooc. 

 Papers Mus. Zool. Univ. Michigan, No. 372, 1938, pp. 1-11) on the basis of adult anatomy and by Orton 

 (.ibid.. No. 472, 1943, pp. 1-7) on the basis of larval anatomy. 



