Descriptions of New Hylid Frogs From Mexico and Central AmericaDuellman, William Edward
Science
Descriptions of New Hylid Frogs From Mexico and Central America
Duellman, William Edward
Frogs -- Central America; Frogs -- Mexico; Hylidae
Axillary membrane absent; thoracic fold weak; arms moderately robust;
fold on wrist heavy; fingers long, slender; length of fingers from
shortest to longest, 1-2-4-3; discs large, that on third finger as large
as tympanum; subarticular tubercles moderately small, round, none bifid;
supernumerary tubercles small, some barely distinguishable, in single
row on proximal segment of each digit; prepollex greatly enlarged, flat
ventrally, bearing nuptial excrescence composed of minute horny
spinules; webbing between first two fingers vestigial; web connecting
other fingers at bases of penultimate phalanges of second and fourth,
and base of antepenultimate phalanx of third fingers. Heels overlap by
about one-third length of shank when hind limbs adpressed; tibiotarsal
articulation extends to posterior edge of orbit; transverse dermal fold
on heel; tarsal fold thin, distinct, extending length of tarsus; inner
metatarsal tubercle large, elongate, flat, visible from above; outer
metatarsal tubercle absent; toes moderately long, slender; length of
toes from shortest to longest, 1-2-3-5-4; discs slightly smaller than
those on fingers; subarticular tubercles moderately small, round;
supernumerary tubercles small, in single row on proximal segment of each
digit; toes about two-thirds webbed; webbing extends from middle of
penultimate phalanx of first toe to base of penultimate phalanx of
second, from middle of penultimate of second to middle of
antepenultimate of third, from middle of penultimate of third to middle
of antepenultimate of fourth to middle of penultimate phalanx of fifth
toe.
Anal opening directed posteriorly at level of mid-thigh; anal sheath
short. Skin granular on chin, belly, and posteroventral surfaces of
thighs, smooth elsewhere. Tongue broadly cordiform, notched posteriorly,
barely free behind. Prevomerine teeth 4-4, situated on posteromedially
inclined elevations between small ovoid choanae. Vocal slits absent.
Color (in preservative): dull grayish brown above with small,
irregularly-shaped black spots on head, back, and limbs; flanks gray
mottled with creamy tan; anterior and posterior surfaces of thighs tan;
belly dull creamy tan; throat marked with gray blotches; anal region and
posterodorsal surfaces of thighs marked with small white spots.
Color (in life): dorsum pale green with black spots and reticulations;
flanks mottled dark brown and creamy white; outer edges of feet silvery
white with brown spots; anterior and posterior surfaces of thighs dull
brown; webbing and first three toes dull yellowish tan; belly creamy
gray; throat silvery white, mottled with gray; iris dull bronze-color
with black reticulations; palpebral membrane clear.
Public-domain text, read in full here on John Shaqi.
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