Osteocephalus vasquezi

Description of holotype. Adult male (Figs 4, 5), 51.4 mm SVL, head length 15.5 mm, head width 15.5 mm, eye diameter 5.3 mm, tympanum diameter 3.1 mm, femur length 23.7 mm, tibia length 28.0 mm, foot length 22.3 mm. Head narrower than body; snout truncate in lateral and dorsal views; canthus rostralis distinct and rounded; loreal region concave; internarial area depressed; nostrils slightly protuberant, directed laterally; interorbital area flat, with scattered small tubercles, lateral margins of the frontoparietals inconspicuous through skin; eye strongly protuberant; tympanic membrane evident, slightly wider than high, separated from eye by ca. 93 % of its diameter; tympanic annulus distinct. Tongue cordiform, widely attached to floor of mouth; vomerine odontophores angular, adjacent medially, posteromedial to choanae, bearing 9 and 8 (left / right) vomerine teeth; choanae with capsular shape, oblique; deflated vocal sacs distinct above the arms and below the ears. Axillary membrane present, reaching half the arm length; ulnar tubercles absent; relative length of fingers I <II <IV <III (Fig. 4); fingers bearing oval discs, that of Finger III about two thirds of tympanum diameter; subarticular tubercles prominent, round to ovoid except for slightly bifid distal subarticular tubercle of Finger IV; supernumerary tubercles present, distinct; palmar tubercle elongated; prepollical tubercle protuberant, elliptical; prepollex present; dark brown, keratinous nuptial excrescences covering inner surface of prepollex up to the intercalary cartilage of thumb; webbing basal between fingers I and II; webbing formula of fingers II 2 -- 3 III 3 -- 21 / 2 IV (Fig. 4). Small tubercles on tibiotarsal articulation; dorsal surface of tarsus covered by scattered minute keratinized conical tubercles, more abundant on outer edge; small tubercles scattered along ventrolateral edge of foot; toes bearing discs slightly wider than long, smaller than those of fingers; relative length of toes I <II <V <III <IV; outer metatarsal tubercle ill defined, small, round; inner metatarsal tubercle larger, ovoid; subarticular tubercles single, round, protuberant; supernumerary tubercles restricted to the soles; webbing formula of toes I 1 - 1 + II 1 - 1 + III 1 - 1 + IV 1 + - 1 V (Fig. 4). Skin on dorsum, head, and dorsal surfaces of hindlimbs shagreen, covered by conical tubercles with keratinized tips, tubercles minute on head and limbs; skin on flanks weakly areolate; skin on venter granular; skin on ventral surfaces of head smooth, on those of thighs smooth on the anterior half and granular on the posterior half, smooth on shanks. Cloacal opening directed posteriorly at upper level of thighs; short simple cloacal sheath covering cloacal opening; round tubercles around vent and on posterior surface of proximal third of thighs.