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Read Ebook: A New Hylid Frog from Eastern Mexico. University of Kansas Publication Vol 1 No 15 by Taylor Edward Harrison
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A New Hylid Frog from Eastern Mexico
EDWARD H. TAYLOR
University of Kansas Publications Museum of Natural History
Volume 1, No. 15, pp. 257-264, 1 fig. in text August 16, 1948
University of Kansas LAWRENCE 1948
University of Kansas Publications, Museum of Natural History Editors: E. Raymond Hall, Chairman; H. H. Lane, Edward H. Taylor
Volume 1, No. 15, pp. 257-264, 1 fig. in text August 16, 1948
University of Kansas Lawrence, Kansas
PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1948
A New Hylid Frog from Eastern Mexico
EDWARD H. TAYLOR
~Hyla proboscidea~ sp. nov.
Width of an upper eyelid contained in interorbital distance about 1-1/3 times; horizontal diameter of eye about equal to distance between eye and nostril, about 1-1/3 times diameter of tympanum; tympanum distinct, its distance from orbit equal to its diameter, overhung by a glandular fold running back from eye.
Choanae large; vomerine teeth in two elevated patches which lie between, and reach the posterior level, of choanae, the patches closer to each other than to choanae; tongue rather small, subcircular, not or but very indistinctly notched behind, not at all free behind; opening to vocal sacs behind level of tongue, the openings a short slit directed backwards.
Skin of dorsal surfaces generally smooth ; ventral surface of abdomen, the thighs, and lower part of lateral surface of body strongly granulate, the granules unequal in size and elevation; breast, chin, and under side of arm with sparse granules or tubercles.
Anal opening ventral, covered by a small, free, triangular flap; a small thickened fold, slightly free, on each side of anus partly covered by triangular flap.
Arms rather short, upper arm slender, forearm much thickened; a small axillary web present; disks on three outer fingers distinctly larger than tympanum, of first finger equal to or somewhat smaller than tympanum; outer fingers, between one-third and one-half webbed; on inner fingers webbing less than one-third; first finger more or less opposed to other three, its base widened, and the upper surface covered by a large patch of minute dark, horn-colored nuptial asperities, that extend to near the terminal disk; subarticular tubercles strongly elevated with numerous supernumerary tubercles on palm; a somewhat enlarged elevated palmar tubercle; under surface of forearm with a row of distinct tubercles; other smaller scattered granules present. Toes more than four-fifths webbed, the membrane reaching the base of the terminal disks, on one side at least, of all toes save fourth; subarticular tubercles strongly elevated, with numerous supernumerary tubercles on sole; a large elevated inner metatarsal tubercle; a small outer tubercle; a continuous, well-defined, tarsal fold extending entire length of tarsus. Tibiotarsal articulation reaches nostril when leg is brought forward.
There are some differences in the shade of coloring in the preserved specimens, some being darker, some lighter than the type. In two the lateral dark-edged, cream spots extend to the axilla, and the light and dark markings on the front and back surfaces of the leg are much more distinct in most of the specimens than in the type. When the specimens are submerged in water, the black bars on the limbs are evident in all specimens. The tympanum is sometimes darker, sometimes lighter than its surroundings.
In the field notes of Mr. Dalquest I find the statement that the color in life is bright yellow, which presumably applies to all of the specimens. No trace of this color remains at the present time.
The ventral granules of some of the paratypes are very unequal in elevation, some being elongated, nipplelike.
The following table gives the variation in measurements of the type and paratypes:
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