MEXICAN AMPHIBIANS—TAYLOR AND SMITH 579 
The collection contains 735 specimens from Chiapas, the following 
of which are cataloged: U.S.N.M. Nos. 117448-117453 from Colonia 
Hidalgo, April 14, 1940; U.S.N.M. Nos. 117026-117031, from Tonalé, 
January 26-30, 1940; U.S.N.M. Nos. 117050-117056, from Finca 
Juarez, May 8-10, 1940; U.S.N.M. Nos. 117057-117062, from La 
Magnolia, May 23, 1940; U.S.N.M. Nos. 117063-117067, from Rancho 
Las Gradas, May 20, 1940; U.S.N.M. Nos. 117068-117071, Cruz de 
Piedra, April 25 to May 11, 1940; U.S.N.M. Nos. 117044-117049 
from Colonia Soconusco, April 14 and May 10, 1940; U.S.N.M. Nos. 
117038-117043, La Hsperanza, April 15 to May 25, 1940; U.S.N.M. 
Nos. 117079-117086, Salto de Agua, April 18 to May 19, 1940; U.S. 
N.M. Nos. 117032-117037, San Juanito, July 6 to 17, 1939; U.S.N.M. 
Nos. 117072-117078, Las Nubes, April 15, 1940. 
Specimens from Salto de Agua for the most part have a broad, 
brownish, median stripe or a hair-fine, brownish or whitish line. The 
largest specimen taken in the entire series of 403 was 72 mm. in length 
and had a head width of 32 mm. The usual, large-sized specimens 
were between 65 and 67 mm., with the head 30 to 33 mm. in width. 
The three largest males measured 44, 42, and 41 mm., with head 
widths of 18, 18, and 17, respectively. Diameter of the tympani of 
three largest females 4.2, 4.4, and 4.4 mm., respectively; of the three 
largest males, 5.3, 5.5, and 5.2 mm. The tibiotarsal articulation 
reaches the nostril. The skin is finely granular on the sides, back 
part of body, and above the femur. Heels touch or overlap about 
1mm. 
In a smaller series from Las Nubes (98 specimens) the two largest 
females measured 68 and 71 mm.; the largest male 42 mm.; the width 
of the heads of those three specimens is 32, 33, and 18 mm., respec- 
tively. 
The fewer specimens from Tonal4, Colonia Hidalgo, Las Gradas, 
and La Esperanza differ in no important way; none of the males or 
females are as large as those mentioned above. 
ELEUTHERODACTYLUS RUGULOSUS var. 
A series of 37 specimens, collected on February 4 and August 31, 
1939, at Agua del Obispo, Guerrero, of which 20 are cataloged (U.S. 
N.M. Nos. 117006-117025), differ from those listed above in having a 
shorter shank (the heels not touching when the legs are folded at right 
angles to the body); and the tibiotarsal articulation reaching to nostril 
or to a little beyond the tip of snout. The skin is somewhat less gran- 
ular and pustulous, the pustules on the legs being pearl color. The 
vomerine teeth are in somewhat smaller groups and the canthal region 
is more rounded. | 
The largest female measures 67 mm., the largest male 34. There is 
no vocal sac. 
