s (1954:6) found calling males at
La Placita.

Most of the specimens are immature; four adult males have snout-vent
lengths of 30.9-33.0 (32.2) mm. In all specimens the first finger is
noticeably longer than the second; the inner metatarsal tubercle is
large, flat, and cream-colored, contrasting with the dark brown sole of
the foot. When the hind limbs are adpressed, the heels broadly overlap.
Characteristically, a dark line extends from the snout, through the eye,
above the tympanum, to a point above the insertion of the forelimb.
Usually there is a dark bar behind the tympanum, two dark brown bars
from the eye to the mouth and thence onto the lower jaw, and another
dark bar on the upper lip between the eye and nostril. One adult from
Arteaga, an adult and a juvenile from La Placita, and one juvenile each
from Coire, Ostula, and Pomaro, have the lower lip barred with dark
brown and white, and have a white stripe extending the length of the
upper lip. In life the dorsum varies from dark gray or olive-brown to
tan or reddish brown.

This species belongs to a group containing two other populations that
are currently recognized as species--_calcitrans_, known only from
Omiltemi, Guerrero, and _mexicanus_, reported from the mountains of
Oaxaca. Another apparently undescribed member of this group has been
collected in the mountains of northern Puebla. The locality records
indicate that the group inhabits the mountains on the periphery of the
Mexican Plateau, except in western Mexico, where _Eleutherodactylus
occidentalis_ extends to the Pacific lowlands.

~Eleutherodactylus rugulosus vocalis~ Taylor

_Eleutherodactylus vocalis_ Taylor, Univ. Kansas Sci. Bull.,
26:401, November 27, 1940.--Hacienda El Sabino, Michoacan,
Mexico.

Arteaga (10); El Sabino (8); Salitre de Estopilas (3);
Tumbiscatio (2); Tzitzio (2).

The distributional data on this frog in Michoacan indicate that it
inhabits riparian situations in arroyos and canyons in the lower slopes
of the Cordillera Volcanica and the Sierra de Coalcoman, where it has
been taken at elevations only below 1100 meters.

The dorsal color of living individuals from Arteaga varied from dark
gray and olive brown to tan and reddish brown. The iris was grayish
brown. In contrast, individuals from Agua del Obispo, Guerrero, had pale
golden eyes; specimens from Matias Romero, Oaxaca, had gold eyes heavily
flecked with gray; and individuals from Volcan