William Edward Duellman

Name: Descriptions of New Hylid Frogs From Mexico and Central America
Author: William Edward Duellman

Descriptions of New Hylid Frogs From Mexico and Central America

Summary

“Descriptions of New Hylid Frogs From Mexico and Central America”, is a work by William Edward Duellman. It explores elements such as snout, Hyla and thighs.

Quotes from Descriptions of New Hylid Frogs From Mexico and Central America (William Edward Duellman)

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ In life dorsal coloration varied from pale green to olive-green with darker green or black flecks or reticulations, or pinkish tan to brown with dark brown flecks or reticulations. Some preserved specimens have relatively few dark flecks, whereas in most specimens the dorsum is heavily marked. All specimens have some white markings above the anus and on the posterodorsal surfaces of the thighs, but in some individuals the white flecks are expanded and interconnected forming an irregular white line. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Some genera of amphibians, especially Eleutherodactylus and Hyla, are represented by many species having small geographic ranges in México and Central America. Most of the species of Hyla inhabiting the lowlands have been known to science for many years, and most of the novelties today are found in the less accessible highlands. No fewer than 19 new species of hylid frogs have been discovered and named from México and Central America in the past decade. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Variation.—In life all individuals had creamy yellow venters and yellow flanks and anterior surfaces of thighs with brown or black spots and mottling. Most of the adults were colored like the holotype, but one was a much darker olive-green, and one was uniform brown above with a dark brown middorsal stripe. Most subadults (snout-vent lengths 31.6-50.1 mm.) were pale reddish tan above with darker reddish brown bars on the limbs and blotches on the back. The side of the head was dark brown and the stripe along the canthus, edge of upper eyelid, and supratympanic fold was yellowish tan. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Axillary membrane absent; arms robust, forearm not noticeably heavier than upper arm; distinct transverse fold on wrist. Fingers long, moderately slender; length of fingers from shortest to longest, 1-2-4-3; discs moderately large, that on third finger larger than tympanum; webbing vestigial; subarticular tubercles small, conical; terminal tubercle on fourth finger somewhat flattened; supernumerary tubercles small, in one row on proximal segment of fourth finger and in two rows on proximal segments of other fingers ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Ratibor Hartmann of Finca Santa Clara, Chiriquí, Panamá, made possible our travels to the Río Changena on the Atlantic slopes of Bocas del Toro. Field work in Costa Rica was facilitated by the Organization of Tropical Studies through the courtesy of Stephen B. Preston and Norman Scott. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Toes three-fourth webbed; web extending from base of disc of first to middle of penultimate phalanx of second, from base of disc of second to middle of penultimate phalanx of third, from base of disc of third to base of penultimate phalanx of fourth and to base of disc of fifth toe.
Anal opening directed posteriorly at level of dorsal surfaces of thighs, bordered below by vertical dermal folds and few small tubercles; anal sheath absent. Skin heavily granular on throat, chest, belly and ventral surfaces of thighs, smooth elsewhere. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Snout long; distance from anterior corner of eye to nostril equal to diameter of eye; nostrils slightly protuberant, directed laterally; internarial distance, 2.6 mm.; internarial area slightly depressed; top of head slightly convex; interorbital distance 3.2 mm., 31.1 per cent of width of head; width at eyelid 2.6 mm.; 24.3 per cent of width of head. Diameter of eye 3.0 mm.; thin dermal fold extending posteriorly from posterior corner of eye, above tympanum, to point above insertion of arm. Tympanum distinct, its diameter half that of eye. ”

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Source: Gutenberg

William Edward Duellman, Descriptions of New Hylid Frogs From Mexico and Central America

“ Paratypes.—KU 101002-6 collected at the same locality on February 19 and 20, 1966, by William E. Duellman, and KU 101008 from 33 kilometers (by road) north of San Gabriel Mixtepec, Oaxaca, México, elevation 1675 meters ”

William Edward Duellman

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