A New Species of Leptodactylid Frog (Ischnocnema) from the Cordillera Del Condor in Ecuador
1974; The Society for the Study of Amphibians and Reptiles; Volume: 8; Issue: 1 Linguagem: Inglês
10.2307/1563081
ISSN1937-2418
Autores Tópico(s)Animal and Plant Science Education
ResumoIschnocnema simmonsi sp. nov. (Leptodactylidae, Telmatobiinae, Eleutherodactylini) is named from the Rio Piuntza, Cordillera del Condor, Morona-Santiago Prov., Ecuador, 1830 m; it differs from /. quixensis and /. verrucosa in skin texture, color pattern, and limb length and presumably occurs at higher elevations than do its congeners. The Cordillera del Condor is situated just east of the eastern Andean Cordillera in southern Ecuador. Few herpetological collections have been made on the Condor-Cutucu piedmont. In January, 1972, John E. Simmons and Bruce MacBryde attempted to climb the northern end of the Cordillera; they followed a stream, the Rio Piuntza, flowing west off the Condor at approximately 3?15'S, 78020'W and emptying into the Rio Zamora some 30 km SSW of Yuquianza. Their collection yielded a number of unusual leptodactylid frogs, chiefly specimens of Eleutherodactylus, but also contained 2 immature specimens of the genus Ischnocnema, previously known from a species found in southeastern Brazil (/. verrucosa) and one in the upper Amazon basin (/. quixensis). Ischnocnema simmohsi sp. nov. Holotype.-KU 147068, a young female, collected at the Rio Piuntza, Cordillera del Condor, Morona-Santiago Prov., Ecuador, 1830 m, 4 January 1972 by John E. Simmons and Bruce MacBryde. Paratype.-KU 147069, a juvenile topotype, 5 January 1972, by John E. Simmons. Diagnosis.-A species of Ischnocnema differing from I. quixensis and /. verrucosa in having the skin of the dorsum and limbs . . covered with uniform-sized spinule-like warts, in having longer fingers and toes (Fig. 1), and in having a dark venter with scattered white spots. Description of the holotype.-Measurements in mm: snout-vent length (SVL) 25.3, shank 13.8, head width 10.4, head length 10.2, eyelid width 2.7, interorbital distance (IOD) 2.1, tympanum length 1.9, eye length 3.5, and eye-nostril distance 3.2; head as wide as body, slightly wider than long; head width as body, slightly wider than long; head width FIGURE 1. Dorsal and ventral views of Ischnocnema 41.1 per cent SVL; head subacuminate in simmonsi (left, holotype, KU 147068) and I. quixensis dorsal view; snout truncate in dorsal view, (right, KU 126226).
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