36 BULLETIN 194, UNITED STATES NATIONAL MUSEUM 



SCAPHIOPUS HAMMONDn Baird 



Scaphiopus hammondii Baird, Explorations and surveys for a railroad route from 

 the Mississippi River to the Pacific Ocean, vol. 10, Williamson's route, pt. 

 4, No. 4, 1857 (1859), p. 12, pi. 28, fig. 2. 



Spea hammondii Cope, U. S. Nat. Mus. Bull. 34, 1889, pp. 303-304, fig. 77. 



TVpe.— U.S.N.M. No. 3695. 



Type locality. — Fort Reading, Calif. 



Range. — British Columbia southward to northern Baja California, 

 and eastward in the north to extreme western Nevada, in the south to 

 central Texas, passing through northern Mexico, central Arizona, and 

 New Mexico. Reported from Baja California, Chihuahua, Coahuila, 

 Nuevo Le6n, Tamaulipas, Sonora. (Other mainland records are 

 probably not of this species.) 



SCAPHIOPUS MULTIPLICATUS Cope 



S{caphiopus) muliiplicaUds Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 15, 



1863, p. 52.— Taylor, Univ. Kansas Sci. Bull., vol. 28, 1942, pp. 42-44, pi. 



2, fig. 3, pi. 3, fig. 3. 

 Scaphiopus hammondii multiplicatus Kellogg, U. S. Nat. Mus. Bull. 160, 1932, 



pp. 19, 22-24. 

 Scaphiopus dugesii Brocchi, Bull. Soc. Philom. Paris, ser. 7, vol. 3, 1879, p. 23 



(Mexico; Mus. Hist. Nat. Paris, No. 281a, tv/o cotypes). 



Type. —V.S.'N.M. No. 3694. 



Type locality. — ^"Valley of Mexico"; Mexico. 



Range. — The plateau of central Mexico from Durango and Zacatecas 

 southward to Guerrero and Oaxaca. Recorded from the states of San 

 Luis PotosI, Guanajuato, Jalisco, Mexico, Distrito Federal, Puebla, 

 Veracruz (western), Zacatecas, Durango, Aguascalientes, Guerrero, 

 and Oaxaca. 



Suborder Procoela Nicholls 



Procoela Nicholls, Proc. Linn. Soc. London, vol. 128, 1915-1916 (1916), p. 87. 



KEY TO MEXICAN FAMILIES OP PROCOELA 



1. Maxillary and vomerine teeth absent; generally a distinctly visible paro- 



toid gland 2 



Maxillary teeth present; parotoid glands invisible; vomerine teeth 

 present in most genera 3 



2. A conical tubercle on middle of inner edge of tarsus, marking end of 



tarsal fold; terminal phalanges with nodular extremities. 



Leptodactylidae ^s (p. 46) 

 No tubercle as described; terminal phalanges with T-shaped or simple 

 extremities Bufonidae (p. 37) 



3. No intercalary cartilage or bone between ultimate and penultimate 



phalanges of each digit, supporting the claw-shaped or T-shaped termi- 

 nal joint; sacral diapophyses cylindrical or dilated. Leptodactylidae (p. 46) 

 An intercalary cartilage or bone supporting terminal phalanges, which 

 are generallj' claw-shaped; sacral diapophyses dilated Hylidae (p. 67) 



!« Engystomops only. 



I 



