MEXICAN AMPHIBIANS—TAYLOR AND SMITH 575 
The two specimens differ somewhat, one having the head slightly 
flatter than the other, with the jaws flaring out more. Both are fe- 
males containing ovarian eggs. The chin is heavily mottled with 
brown in one, and light in the other. 
ELEUTHERODACTYLUS MEXICANUS (Brocchi) 
Leuiperus [sic] mexicanus Broccut, Bull. Soc. Philom. Paris, ser. 7, vol. 1, No. 4, 
1877, p. 184 (México, probably southeastern México). 
Eleutherodactylus mexicanus (part) Ketioce, U. 8. Nat. Mus. Bull. 160, 1982, 
pp. 108-112.—Taytor, Univ. Kansas Sci. Bull., vol. 28, pt. 1, No. 5, May 
15, 1942¢, p. 73, pl. 8, figs. 2, 2a-c. 
A series of 20 specimens was obtained by Thomas MacDougall on 
Cerro de las Flores, Lachiguiri, Oaxaca, January 20, 1940 (U.S.N.M. 
Nos. 116462-116479 cataloged), at an elevation of 7,100 feet. The 
specimen figured by Taylor (loc. cit.) under the field number 8S. 12752 
is now U.S.N.M. No. 116475. 
One other specimen, collected at Pan de Olla, near Teziutlan, 
Puebla, U.S.N.M. No. 116480, is referred to this species. It differs 
somewhat in having the femora shorter, so that the heels overlap a 
little, while in the adults of the southern specimens the femora are 
longer and the heels barely touch. Some other slight differences are 
in evidence, but a series must necessarily be available before it is 
certain that we are not dealing with an individual variation. 
The inner metatarsal tubercle of Eleutherodactylus mexicanus, while 
well developed, is smaller than that of either E. calcitrans or E. 
occidentalis. 
ELEUTHERODACTYLUS MATUDAI Taylor 
Eleutherodactylus matudai Tayuor, Univ. Kansas Sci. Bull. vol. 27, pt. 1, No. 8, 
1941le (December), pp. 154-157, pl. 11 (Cerro Ovando, Chiapas.) 
Eleven specimens, comprising the type and paratype, U.S.N.M. 
Nos. 110626 (type), 110620—110625, 110627-110630, are in the col- 
lection. The specimens were obtained at night as they were sitting on 
stones and gravel in and near a small, steep rivulet, at an elevation of 
about 6,000 feet, on April 16, 1940. The habitat and general habitus 
strongly suggested EH. rugulosus in the field, with which they were 
confounded at first sight. That species, however, common from 
about 500 feet to at least 3,500 feet, was not taken at elevations above 
5,000 feet, where it is replaced by matudaz. 
ELEUTHERODACTYLUS CALCITRANS (Giinther) 
Hylodes calcitrans GUNTHER (part), Biologia Centrali-Americana, Rept. Batr., 
August 1900, p. 2380, pl. 67, fig. B (‘‘Omilteme, Guerrero, and Jalisco’’; here 
restricted to Omilteme, Guerrero). . 
Eleutherodactylus calcitrans Taytor, Proc. Biol. Soc. Washington, vol. 54, 1941ce, 
p. 93. 
A single topotypic specimen (U.S.N.M. No. 116481) is in the col- 
lection from Omilteme, Guerrero, July 10-20, 1940. It exhibits the 
