Part 4

The museum catalogue numbers of the specimens examined, together with the localities from which they came, are listed at the end of the account of each subspecies or monotypic species. The localities that are represented by symbols on the distribution map (Fig. 7) are in roman type; those that are not represented on the map, because overlapping of symbols would have occurred, are in italic type.

=Ptychohyla= Taylor, 1944

Ptychohyla Taylor, Univ. Kansas Sci. Bull., 30:41, May 15, 1944. Type, Ptychohyla adipoventris Taylor, 1944 [= Hyla leonhardschultzei (Ahl), 1934].

Diagnosis.--Small hylids having stream-adapted tadpoles and differing from other hylid genera in having large ventrolateral glands in breeding males.

Composition.--Five species, two of which are made up of two subspecies, arranged in two groups of species on the basis of morphological characters of adults and tadpoles and on the basis of breeding calls.

Distribution.--Moderate elevations from southern Guerrero and northern Oaxaca, Mexico, to northern El Salvador and central Honduras.

KEY TO ADULTS

1. A weak tarsal fold; outer fingers one-third webbed; males having spiny nuptial tuberosities; color in life tan or brown with blotches or reticulations, never green; iris bronze color P. euthysanota group--2

No tarsal fold; outer fingers having only vestige of web; males lacking nuptial tuberosities; color in life green or brown; iris red or golden color P. schmidtorum group--5

2. Chest, throat, and flanks usually having brown or black spots; no distinct white stripe on upper lip or on flanks; a faint white line usually present above anal opening; a rostral keel 3

Chest, throat, and flanks usually unspotted; distinct white line on upper lip and on flank present or not; white line above anal opening faint or well defined; no rostral keel 4

3. Interorbital region much wider than eyelid; spots on throat and chest black; spots only occasionally present on belly; flanks marbled with black and white; nuptial spines small, as many as 80 on one thumb P. leonhardschultzei

Interorbital region about as wide as eyelid; spots on chest and throat brown or black; spots usually present on belly; flanks having round brown or black spots; nuptial spines moderate in size, conical, seldom more than 60 on one thumb P. spinipollex

4. A distinct, broad, white lateral stripe usually present; usually a distinct white line above anal opening; a distinct white stripe on upper lip P. euthysanota euthysanota

No white lateral stripe; a faint white stripe above anal opening; no distinct white stripe on upper lip P. euthysanota macrotympanum

5. A distinct, broad, lateral stripe; a white stripe on upper lip expanded to form a large spot below eye; hidden surfaces of thighs and webs of feet not red in life; internarial region slightly depressed; diameter of tympanum greater than one-half diameter of eye 6

No lateral white stripe; no stripe on upper lip; in life dorsum green, hidden surfaces of thighs and webs of feet orange tan to bright red, and eye golden color; internarial region flat; diameter of tympanum less than one-half diameter of eye P. ignicolor

6. Webs of feet and posterior surfaces of thighs pale cream color; dorsum in life reddish brown; iris bright red P. schmidtorum schmidtorum

Webs of feet and posterior surfaces of thighs pale brown; dorsum in life green; iris reddish bronze color P. schmidtorum chamulae

KEY TO TADPOLES

1. Lips greatly expanded forming a funnel-shaped mouth; tooth-rows 3/3 P. schmidtorum group--2

Lips folded laterally, not forming a funnel-shaped mouth; tooth-rows 4/6 or more P. euthysanota group--4

2. Belly and mouth mottled; tail cream color heavily blotched with brown 3

Belly dark gray; tail cream color with dense brown flecking, giving brown appearance P. schmidtorum chamulae

3. Belly cream color with brown mottling; no large tubercle at each end of first lower tooth-row P. schmidtorum schmidtorum

Belly grayish green with brown mottling; a large tubercle at each end of first lower tooth-row P. ignicolor

4. Tooth-rows 4/6; cream-colored crescent-shaped mark on posterior part of body bordered posteriorly by large brown mark 5

Tooth-rows usually 4/7 (sometimes 4/6); cream-colored crescent-shaped mark on posterior part of body usually indistinct, not bordered posteriorly by large brown mark P. spinipollex