^ 0&Y3 Vol. 87, No. 33, pp. 381-388 31 December 1974 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON A NEW SPECIES OF ELEUTHERODACTYLUS (AMPHIBIA: LEPTODACTYLIDAE) FROM THE PACIFIC LOWLANDS OF ECUADOR By John D. Lynch School of Life Sciences, The University of Nebraska, Lincoln Soon after my description of Eleutherodactylus croceoin-guinis (Lynch, 1968) from Provincia Napo, Ecuador, Dr. Charles F. Walker called my attention to a series of a dimin-utive eleutherodactyline frog that he had collected in 1962 in the vicinity of Santo Domingo de los Colorados, Prov. Pichincha, Ecuador. His frogs were superficially similar to E. croceoinguinis in size (less than 25 mm SVL) and color pattern (presence of bright color patches on the concealed surfaces of the limbs). At that time I had not done field work in western Ecuador but had seen two examples of this frog collected along the Rio Baba. Field work in 1968 and 1970 provided me the opportunity to collect additional ma-terial at Santo Domingo de los Colorados as well as at several other localities in western Ecuador and to make ecological observations of this frog which is here named Eleutherodactylus walkeri, new species Holotype: The University of Kansas Museum of Natural History (KU) 131652, an adult male collected at Las Palmas (junction of highways 28 and 30), Prov. Pichincha, Ecuador, 920 m, 8 August 1970 by J. D. Lynch. Paratypes: KU 131653-63, California Academy of Sciences 134064-66, collected syntopically with holotype; University of Michigan Museum of Zoology 131675 (10 specimens), Hacienda Delta, ca. 8 km SE Santo Domingo de los Colorados, Prov. Pichincha, Ecuador. Diagnosis: (1) skin of dorsum finely shagreened, no dorsolateral folds, that of venter coarsely areolate, discoidal folds prominent; ( 2 ) 33— Proc. Biol. Soc. Wash., Vol. 87, 1974 ( 381 )
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