tka, KU 36467-79, 36697, 41084. _Puntarenas_: 5 km NW Buenos Aires,
KU 107057; 10 km E Esparta, KU 87666 (tadpoles); Golfito, KU 32166-8; 8
km E Palmer Norte KU 93939; 10.7 km SE Palmar Sur, KU 93938 (skeleton),
93940-51, 93952 (eggs), 93953-6 (tadpoles); Piedras Blancas, KU
103646-59; 4.5 km W Rincon de Osa, KU 102208-41, 104298 (tadpoles).

[Illustration: Fig. 6. Map showing locality records for _Hyla
elaeochroa_ (circles) and _H. rubra_ (dots).]

Panama: _Bocas del Toro_: Almirante, KU 80079; Isla Bastimentos, KU
96008-11; Rio Cricamola, 3.7 km from coast, KU 96012. _Chiriqui_: Rio
Gariche, 8.3 km ESE Paso de Canoas, KU 101571-2.

_Hyla staufferi_ Cope

_Hyla staufferi_ Cope, Proc. Acad. Nat. Sci. Philadelphia, 17:165,
October 1, 1865 [Holotype.--USNM 15317, Orizaba, Veracruz, Mexico;
Francis Sumichrast collector].

_Diagnosis._--Small frogs (Male to 29 mm., Female to 31.6 mm.); skull
longer than wide; palatine absent; large cartilaginous crista parotica
present; snout flat, elongate and protruding; dark interorbital bar and
dorsal stripes usually present.

_Description._--Head flat, especially in females, longer than wide;
snout long, protruding beyond mouth; loreal region concave; canthus
ill-defined; length of eye greater than internarial distance or width
of eyelid; length of eye less than interorbital space; tympanum
distinct; interorbital spot irregular; supratympanic fold faint; arms
short; fingers free of webs; discs on third and fourth fingers equal to
diameter of tympanum; inner metatarsal tubercle on base of first finger
distinct; first finger shorter than second; palmar tubercle distinct
(Fig. 1C); legs short (usually less than 50 per cent of snout-vent
length); tarsal fold absent; metatarsal tubercles small, outer tubercle
smaller than inner; subarticular tubercles small, simple, distinct;
toes less than half webbed (Fig. 1D); skin smooth above with a few
small pustules on head, scapular region, flanks, and supratympanic
region; arms and legs smooth; skin of belly coarsely granular;
posteroventral surfaces of thighs finely granular; tongue small,
rounded, longer than wide, slightly free and notched posteriorly; vocal
slits small, lateral to tongue; choanae moderate in size.

_Variation._--The largest males of _Hyla staufferi_ are from Jalapa,
Guatemala, and from San Salvador, El Salvador. In these samples the
average snout-vent length is 27 mm. In Panamanian specimens the average