The Amphibians and Reptiles of Sinaloa, Mexico - Smithsonian ...

AMPHIBIANS AND REPTILES OF SINALOA, MEXICO 89
and the anterior edge of the eye. The iris is rose-gold to pinkish
gold with tiny black flecks; the pupil is horizontally elliptical. The
belly is yellowish white. The hands are darker dorsally than the
dorsum, and the toe pads are yellow. The unexposed parts o£ the
thigh are golden brown with no flecks, and those parts of the tibia
and foot are similar but paler in color.
One gravid female (KU 75304) obtained on July 11, 1963, has a
snout-vent length of 28.4 and a tibia length of 13.7. Forty-two males
(KU 68719, 75295-303, 75305-33, 78380-82) have snout-vent lengths
of 22.7-25.6 (24.2) and tibia lengths of 10.8-12.2 (11.7). The testes
are unpigmented.
Metamorphosing tadpoles (KU 78988-89), collected on August 8
and 9, 1963, agree with the description given by McDiarmid (1963:
7-8), except that the brown reticulations and blotches on the caudal
musculature and lines are more distinct than indicated in his illustration
(Fig. 3, p. 8).
Distribution in Sinaloa.—Known only from the vicinity of Santa
Lucia in the pine-oak forest. See Fig, 25.
Specimens examined.—27.2 mi. E Concordia (CSCLB 582-611); Copala
( 8 KU 95807-13); PotrerUlos, 1550 m. (° KU 78988-89); Santa Lucia, 1100 m.
( e KU 75295-333); 2.2 km. NE Santa Lucia, 1150 m. ("KU 78380-82); 1.5
km. E Santa Lucia, 1300 m. (* KU 68719).
Additional record.—Santa Lucia, 3600 ft. {KU 80321-23).
Hyla smith! Boulenger
Hyla smithi Boulenger, Zool. Rec. Reptilia and Batrachia, 38:33, 1902 (type
locality, Cuemavaca, Morelos).
Remarks.—Forty-two specimens (excluding KU 73867, 78400,
78404-06) from Sinaloa were compared with 97 specimens from
Oaxaca. Females in both samples are slightly larger than males,
and the specimens of both sexes from Oaxaca are slightly larger than
those from Sinaloa. The samples are similar in tibia length, eye
diameter, tympanum diameter, and third finger pad diameter. In
both samples some specimens have an unmarked dorsum, some
have small dark flecks, and some have distinct brown spots on the
pale yellow ground color. Two differences in coloration were observed
between these samples. The pale, yellowish white dorsolateral
stripe extends to the groin in frogs from Sinaloa, but in the
frogs from Oaxaca the stripe terminates posteriorly near the middle
of the body or slightly posterior to the middle; rarely does the stripe
extend to the groin. The ventral surfaces of the frogs from Sinaloa
were uniformly white or pale yellow, whereas in the Oaxacan frogs