C 8096; 8 km NNW Liberia, KU 65032; 14.5 km N
Liberia, USC 8079, 8138 (2); 14.5 km S Liberia, USC 8238 (5); 6 km N
Nicoya, USC 8229 (11); 4 km S Nicoya, USC 8230, 8231; Penas Blancas, KU
102263; 8.6 km ESE Playa del Coco, USC 8137 (14); 21 km E Playa del
Coco, USC 8138 (2); Santa Cruz, USC 8232 (2); 3 km E Santa Rosa, TCWC
16663-68; Tenorio, KU 32159; Tilaran, KU 36509. _Puntarenas_: 10 km WNW
Esparta, KU 65022-9, 68614 (skeleton); 4.5 km WNW Esparta, KU 65030; 12
km WNW Esparta, KU 65031; 6 km E Esparta, KU 86477; Hotel Maribella, KU
32157-8; 3 km W Puntarenas, TCWC 16657-62.

_Hyla staufferi altae_ Dunn, New Combination

_Hyla altae_ Dunn, Occas. Papers Boston Soc. Nat. Hist., 8:61, June
7, 1933 [Holotype.--MCZ 17972, Summit, Canal Zone, Panama; Emmett
R. Dunn collector].

_Hyla culex_: Stuart, Misc. Publ. Univ. Michigan Mus. Zool., 29:38,
October 1, 1935. Gaige, Carnegie Inst. Washington Publ., 457:293,
1936.

_Hyla staufferi_: Taylor, Univ. Kansas Sci. Bull., 35:862, July 1,
1952. Duellman, Univ. Kansas Publ., Mus. Nat. Hist., 17:274, June
17, 1966.

_Diagnosis._--Small frogs (Male to 26 mm., Female to 27 mm.);
dorsolateral and paravertebral stripes complete; longitudinal dark gray
stripe on shank; thighs unmarked; interorbital bar usually absent; toes
about three fifths webbed; gray to brownish gray above.

_Variation._--_Hyla staufferi altae_ is less variable in size,
proportions, and color pattern than is _H. s. staufferi_. The size
varies from 21.7 to 26 mm. (23.6) in 72 males. The ratio of tibia to
snout-vent length is 0.42 to 0.50 (0.45), slightly less than in the
northern subspecies. In color pattern 94.5 per cent of the individuals
have complete dorsal stripes, and all have a longitudinal stripe on the
shank (Table 7).

_Distribution._--This subspecies is restricted to subhumid forests and
savannas on the Pacific lowlands of Panama. _Hyla s. altae_ is
presently known to occur from Chepo in east-central Panama through the
Azuero Peninsula to Concepcion, Chiriqui, in western Panama (Fig. 7).

_Specimens Examined._--Panama: _Canal Zone_: No specific locality, TNHC
24406; 2.8 km SW Fort Kobbe, KU 101679. _Chiriqui_: 14.4 km E
Concepcion, AMNH 69799-801; 6.6 km N David, TNHC 32013-4; 2 km S David,
AMNH 68802. _Cocle_: 1 km NE El Cano, KU 101662-75; El Valle de Anton,
AMNH 59601-5, KU 77333-47; 7 km SSW Penonome, KU 101654-61. _Los
Santos_: Tonosi, KU 101246 (tadpole