| 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 colorP. 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
colorP. 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 keel3 |
| | 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 keel4 |
| 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
thumbP. 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 thumbP. spinipollex |
| 4. | A distinct, broad, white lateral stripe usually present; usually a distinct
white line above anal opening; a distinct white stripe on upper
lipP. euthysanota euthysanota |
| | No white lateral stripe; a faint white stripe above anal opening; no
distinct white stripe on upper lipP. 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 eye6 |
| | 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 eyeP. ignicolor |
| 6. | Webs of feet and posterior surfaces of thighs pale cream color; dorsum
in life reddish brown; iris bright redP. schmidtorum schmidtorum |
| | Webs of feet and posterior surfaces of thighs pale brown; dorsum in life
green; iris reddish bronze colorP. schmidtorum chamulae |
| 1. | Lips greatly expanded forming a funnel-shaped mouth; tooth-rows 3⁄3P. schmidtorum group—2 |
| | Lips folded laterally, not forming a funnel-shaped mouth; tooth-rows
4⁄6 or moreP. euthysanota group—4 |
| 2. | Belly and mouth mottled; tail cream color heavily blotched with
brown3 |
| | Belly dark gray; tail cream color with dense brown flecking, giving
brown appearanceP. schmidtorum chamulae |
| 3. | Belly cream color with brown mottling; no large tubercle at each end
of first lower tooth-rowP. schmidtorum schmidtorum |
| | Belly grayish green with brown mottling; a large tubercle at each end
of first lower tooth-rowP. ignicolor |
| 4. | Tooth-rows 4⁄6; cream-colored crescent-shaped mark on posterior part of
body bordered posteriorly by large brown mark5 |
| | 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 markP. spinipollex |
| 5. | Caudal musculature uniformly flecked with brown; lower tooth-rows
1-4 about equal in length to upper rowsP. euthysanota euthysanota |
| | Caudal musculature having brown square blotches dorsally on anterior
one-half of tail; lower tooth-rows 1-4 usually slightly shorter than upper
rows6 |
| 6. | Dorsal caudal blotches well defined and extending onto sides of tail;
moderately large brown flecks on caudal fin; eye in life pale reddish
brownP. leonhardschultzei |
| | Dorsal caudal blotches faint, not extending onto sides of tail; small
brown flecks on caudal fin; eye in life silvery bronzeP. euthysanota macrotympanum |
Three species in group; adults having moderate amount of webbing between fingers, and tarsal fold; breeding males having spinous, horny, nuptial tuberosities on pollex; mouths of tadpoles having lateral folds in lips and 4⁄6 or 4⁄7 tooth-rows; breeding call consisting of one long note.