liams, Herpetologica, 19:23,
April 11, 1963.

_Hyla bistincta bistincta_, Shannon, Proc. U. S. Natl. Mus.,
101:472, May 17, 1951. Shannon and Werler, Herpetologica,
11:85, July 15, 1955. Smith and Williams, Herpetologica,
19:23, April 11, 1963.

_Diagnosis._--Maximum snout-vent length in males 54 mm.; snout in
dorsal profile truncate; tarsal fold strong; inner metatarsal tubercle
large, high, and elongate; outer metatarsal tubercle absent; webbing
on foot extending to middle of antepenultimate phalanx of fourth toe;
nuptial spines on thumb small; thoracic fold absent; anal opening at
level of lower edge of femur; dorsum brown or tan; belly cream-color;
flanks creamy yellow with brown reticulations or spots; anal stripe
absent; vocal slits present.

_Description._--The following description is based on KU 68078 from
Uruapan, Michoacan, Mexico. Adult male having a snout-vent length of
43.2 mm.; tibia length, 22.1 mm., 51.1 per cent of snout-vent length;
foot length (measured from proximal edge of inner metatarsal tubercle
to tip of longest toe), 20.8 mm.; greatest width of head, 15.4 mm.,
35.6 per cent of snout-vent length; head length, 13.9 mm., 32.1 per
cent of snout-vent length; diameter of eye, 5.1 mm.; diameter of
tympanum, 2.4 mm., 47.1 per cent of diameter of eye. Snout in lateral
profile bluntly rounded, in dorsal profile truncate; canthus
pronounced, rounded, not angular; loreal region slightly concave; lips
thick, round, not flaring; nostrils slightly protuberant; internarial
distance, 3.4 mm.; interorbital distance, 4.5 mm., somewhat broader
than width of eyelid, 3.5 mm. A heavy dermal fold from posterior
corner of eye above tympanum and curved downward to insertion of
forearm; tympanum round, its diameter slightly more than its distance
from eye. Forearm not robust; row of small pustules on ventral surface
of forearm; fold on wrist; prepollex moderately enlarged, covered with
small, horny, nuptial spines continuous on edge of digit; row of
spines on inner surface of second finger; subarticular tubercles
large, round, none bifid; supernumerary tubercles rather large, round;
palmar tubercles rather small, flat, elliptical; fingers long,
moderately slender; length of fingers from shortest to longest,
1-2-4-3; discs moderately large, that on third finger slightly larger
than tympanum; rudimentary web between first and second and between
second and third fingers; web between third and fourth