Physalaemus signifer (Girard)

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 : 10

Physalaemus signifer (Girard)

Ventral aspect ( Fig. 3 E): At Stage 37, buccal floor triangular, as long as wide. Presence of one pair of large infralabial papillae, with irregular margins. Tongue anlage elliptical with two small and conical lingual papillae in a transverse row. Absence of prepocket papillae. Buccal pockets horizontally oriented. In the BFA about 20 pustulations dispersed and five papillae on each side, pointing to the center of the arena. The first papilla on each side may be chela-shaped and the others are shorter, slender and tapered. Ventral velum with small projections. Dorsal aspect ( Fig. 3 F): Buccal roof somewhat triangular. Prenarial arena longer than wide, with no pustulations or papillae on it. Elliptical choana, large, oriented 45° from transverse plane. Internarial distance 7% of the roof width. In the postnarial arena, presence of two pairs of papillae. One pair is large and bifid and the other pair is finger-like with irregular margins, and points to the center. Presence of one large, bifid lateral ridge papillae on each side. The median ridge is in semicircle, about two times wider than long. In the BRA 20 pustulations dispersed on the arena and about one-two slender and tapered papillae on each side directed to the center of BFA. Dorsal velum with no projections.

Figures

FIGURE 3. (A) Floor and (B) roof of P. m ax i m us; (C) Floor and (D) roof of P. rupestris; (E) Floor and (F) roof of P. signifer. Stage 36 – 37. Scale = 1 mm.