. Bulletin. Science; Natural history; Natural history. Figure I. Male paratype of Eleutherodactylus pug- new species. From a kodachrome by William E. Duellman. Diagnosis.—A species of Eleutherodactylus unique in the following combination of characters: first finger shorter than second: all digits bearing broad discs; toes basally webbed with prominent lateral fringes; skin of venter coarsely areolate; ear absent (no tympanic annulus, cavum tympanicum, or columella); snout round in dorsal view, truncate in lateral profile, shorter than eye length; prevomerine dentigerous processes and tee
. Bulletin. Science; Natural history; Natural history. Figure I. Male paratype of Eleutherodactylus pug- new species. From a kodachrome by William E. Duellman. Diagnosis.—A species of Eleutherodactylus unique in the following combination of characters: first finger shorter than second: all digits bearing broad discs; toes basally webbed with prominent lateral fringes; skin of venter coarsely areolate; ear absent (no tympanic annulus, cavum tympanicum, or columella); snout round in dorsal view, truncate in lateral profile, shorter than eye length; prevomerine dentigerous processes and teeth present. Only three other species of Eleutherodactylus now known lack ears—E. anotis Walker and Test (Vene- zuela), E. surdus (Boulenger) (high Pacific slopes of Andean Ecuador), and an unnamed species from the paramos of southern Ecuador. None of these has toe webbing or the prominent lateral fringes of the toes seen in E. puguax. All three also have longer snouts (eye length equal to or less than eye-nostril dis- tance). The unnamed species is a small frog (adult females 20-21 mm SVL) with minute prevomerine processes and concealed prevomerine teeth. Description.—Head as wide as body, wider than long; snout semicircular in dorsal outline, truncate in lateral profile (Fig. 1), short, eye length much greater than eye-nostril distance; upper jaw barely over- hanging lower jaw; canthus rostralis round, concave; nostrils near tip of snout, protuberant, directed laterally; loreal region flat; lips not flared; eyelids narrow, their width about equal to interorbital dis- tance: interorbital space flat, no frontoparietal ridges; frontoparietals complete, no fontanelle, not in con- tact with nasals; nasals narrowly separated; supra- tympanic fold thick, glandular; tympanum absent;. Figure 2. Left, foot of holotype of Eleutherodactylus pugnax. Right, hand of holotype of Eleutherodactylus pugnax. tongue longer than wide, weakly notched posteriorly, posterior edge free; choanae r
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