Physalaemus atlanticus Haddad & Pombal

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 : 4

Physalaemus atlanticus Haddad & Pombal

Ventral aspect ( Fig. 1 C): At Stage 37, buccal floor triangular. Presence of two pairs of infralabial papillae, both are large in the basis and flattened in the extremity with irregular margins and apices, but the posterior pair is larger and much discernible (the anterior pair is hidden under the posterior pair). Tongue anlage elliptical, with four tapered lingual papillae in a transverse row, directed upwards; the two in the middle are longer than the ones in the extremities. Buccal pockets horizontally oriented. In the BFA, presence of one bifid, long and tapered papilla on each side and another five long and finger-like papillae on each side, pointing to the center of the arena and few pustulations dispersed. Ventral velum round shaped with small projections. Dorsal aspect ( Fig. 1 D): Buccal roof somewhat triangular. Prenarial arena longer than wide; there are some short, conical papillae distributed in a transverse row. Elliptical choanae, large, oriented 45° from transverse plane. Internarial distance 8% of the roof width. In the postnarial arena, presence of one pair of long papillae, large in the basis and tapered in the end, directed to the center; and a pair of short and flattened papillae. Presence of a pair of bifid lateral ridge papillae, large in the basis, with tapered branches. The median ridge in semicircle is about five times wider than long, with few projections in the superior margin. In the BRA about thirty pustulations dispersed in the arena; it is limited by five papillae on each side, directed to the center of BFA; the first papilla on each side is slender but bifid and the others are finger-like papillae. Dorsal velum with no projections.

Figures

FIGURE 1. (A) Floor and (B) roof of Physalaemus aguirrei; (C) Floor and (D) roof of P. atlanticus; (E) Floor and (F) roof of P. camacan. Stage 37. Scale = 1 mm.