574 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
In the specimens with the less distinct or no dorsal stripe, the var- 
ious ridges are followed by darker lines. The head ridges are present 
and join the dorsal ridges on the occiput. 
In the Chiapas specimens, some have the broad dorsal stripe, 
tending in one case to be broken medially. In these the bordering 
lighter areas suggest the appearance of a lateral stripe. The greater 
portion, however, lack the broad median stripe, but the various 
ridges are followed by more or less distinct darker lines. None show 
a white labial stripe. The vomerine teeth are larger and more promi- 
nent in these than in the northern specimens. 
Though there are certain differences between the northern and 
southern specimens, we believe only a single variable species is 
involved. 
ELEUTHERODACTYLUS DORSOCONCOLOR Taylor 
Ficure 61, B 
Eleutherodactylus dorsoconcolor TAYyLoR, Univ. Kansas Sci. Bull., vol. 27, pt. 1; 
No. 8, 1948a (December), pp. 152-154, pl. 10 (Tequeyutepec, Veracruz). 
The type, U.S.N.M. No. 110619, and paratypes, U.S.N.M. Nos. 
110615-110618, are in the collection, found March 23, 1940. 
The strongly defined dorsolateral ridges, and absence of paired 
median ridges, together with the distinctive coloration, seem to set 
this species off from the related E. beatae, FE. dunm, and E. venustus. 
ELEUTHERODACTYLUS CACTORUM Taylor 
EHleutherodactylus cactorum Tayuor, Univ. Kansas Sci. Bull., vol. 25, No. 17, 
1938 (July 10, 1939b), pp. 391-394, fig. 2 (Kilometer 226, about 20 miles 
northwest of Tehuacén, Puebla). 
A single, very light colored specimen was acquired at the exact 
type locality, northwest of Tehuacdén, Puebla, September 21, 1939 
(U.S.N.M. No. 116489). 
One of us (Taylor) observed here on one occasion a group of four 
very young specimens of this species moving along early in the morn- 
ing. They kept together and moved perhaps 10 yards during the 
several minutes they were watched. Their path was rather devious, 
but at no time were they separated by more than three or four inches. 
They behaved very much as a flock of chickens, and it seemed a normal, 
rather than chance, behavior. 
ELEUTHERODACTYLUS AUGUSTI (Dugés) 
PLATE 24, FicursEs 7, 8 
Hylodes augusti Ducks, in Brocchi, Bull. Soc. Philom. Paris, ser. 7, vol. 3, 1879, p. 
21 (Guanajuato, Guanajuato). 
Eleutherodactylus augusti Kntuoae, U.S. Nat. Mus. Bull. 160, 1932, p. 100. 
Two specimens, U.S.N.M. Nos. 116420 and 116421, are from Agua 
del Obispo, Guerrero. They were found hopping on the ground in 
open pine forest at night, September 31, 1939. 
