Physalaemus gracilis (Boulenger)

Ruggeri, Joice & Weber, Luiz Norberto, 2012, A survey of the internal oral features and external morphology of Physalaemus larvae (Anura, Leptodactylidae), Zootaxa 3200, pp. 1-26 : 6

Physalaemus gracilis (Boulenger)

Ventral aspect ( Fig. 2 C): At Stage 37, buccal floor triangular. Presence of two pairs of infralabial papillae. The anterior pair is more centrally positioned, is smaller, tapered and directed upward, while the posterior pair is large, bifid, with irregular apices. The posterior pair is much discernible from the anterior pair. Tongue anlage oval with four tapered lingual papillae in a transverse row, directed upward. Buccal pockets horizontally oriented. In the BFA presence of five to seven papillae on each side. Some papillae are large and chela-shaped and some are finger-like; there are about 30 pustulations dispersed in the arena. Ventral velum round shaped. Dorsal aspect ( Fig. 2 D): Buccal roof triangular. Prenarial arena longer than wide, with three short, flattened papillae on it. Elliptical choanae, large, oriented 45° from transverse plane, serrated in the superior margin. Internarial distance 8% of the roof width. In the postnarial arena, presence of two papillae on each side, one shorter thin and flattened papilla and another large finger-like papilla that points to the center. The median ridge is in semicircle, postulated in the superior margin. Presence of a pair of large chela-shaped lateral ridge papillae, with irregular margins. In the BRA five–six papillae on each side; there are three short, thin finger-like lateral roof papillae. Presence of 30 pustulations dispersed on the arena. Dorsal velum with no projections.

Figures

FIGURE 2. (A) Floor and (B) roof of P. cicada; (C) Floor and (D) roof of P. gracilis; (E) Floor and (F) roof of P. irroratus. Stage 36 – 37. Scale = 1 mm.