and the
iris was dark grayish gold. In contrast, a specimen obtained in the
daytime at Chinapa (UMMZ 119204) had indistinct gray spots on a pale
ashy gray dorsum; the flash colors were yellow. After dark the spots
were dark olive-brown on a grayish brown dorsum.

Two males were found calling from a rocky stream near Lombardia on July
12, 1955. The call is a nasal "ah-ah-ah-ah."

~Hyla baudini~ Dumeril and Bibron

_Hyla baudinii_ Dumeril and Bibron, Erpetologie generale,
vol. 8:564, 1841.--Mexico. Type locality restricted to
Cordoba, Veracruz, Mexico, by Smith and Taylor (1950a:346).

Aguililla (5); Apatzingan (30); Arteaga; Buena Vista;
Charapendo; Coahuayana; Cofradia (4); El Sabino (12); La
Placita; La Playa; Maruata; Nueva Italia (3); 32 km. E of
Nueva Italia (2); Ostula (4); Rio Tepalcatepec, 25 km. S of
Apatzingan (3); Salitre de Estopilas; San Jose de la Montana
(2); Tumbiscatio; Tzitzio.

This tree frog is widespread in the coastal lowlands and in the
Tepalcatepec Valley up to elevations of about 1200 meters. It is found
in numbers in the early part of the rainy season, at which time males
were heard calling from bushes and trees along ditches and temporary
ponds. The call is a loud nasal "waank-waank-waank." One individual that
was emitting a long and unusually high-pitched call was found to have
one hind limb engulfed by a _Leptodeira maculata_.

When active at night these frogs usually are pale tan to reddish brown
above with dark brown markings. A specimen found sitting on a maguey
plant in the daytime was pale ashy gray with a pale green upper lip.

~Hyla bistincta~ Cope

_Hyla bistincta_ Cope, Proc. Amer. Philos. Soc., 17:87,
1877.--Veracruz, Mexico. Type locality restricted to
Acultzingo, Veracruz, Mexico, by Smith and Taylor
(1950a:346).

Cerro San Andres; Dos Aguas (2); Los Conejos (3); Uruapan
(50).

In the Parque Nacional at Uruapan this species was found in abundance
during the day. The frogs hide in an entanglement of vines and
vegetation overhanging several small spring-fed streams. Tadpoles were
in the rocky streams, and metamorphosing young were on vegetation at the
edges of the streams.

In life the dorsum is greenish tan with brown mottling; in some
individuals the entire dorsum is dark chocolate brown. The flanks are
pale lemon yellow barred with lavender-brown. Notes on the color of a
living frog fr