Hypsiboas raniceps Cope

Kolenc, Francisco, Borteiro, Claudio, Alcalde, Leandro, Baldo, Diego, Cardozo, Dario & Faivovich, Julián, 2008, Advertisement call and female sexual cycle in Uruguayan populations of Physalaemus henselii (Anura, Leiuperidae), Zootaxa 1927 (2), pp. 1-66 : 19-24

Hypsiboas raniceps Cope

Figs. 2E and 3G

External morphology.— Lot MLP DB 5303 , Figs. 7A, 7B and 18D. The external morphology of the studied specimens is in agreement with the detailed description presented by Rossa-Feres & Nomura (2006), except that we observed a very short ventral gap in one specimen, and a short P4 row in another one ( Figs. 8G and 9E). We provide a SEM photograph of the oral disc ( Fig. 9E) and a description of the oral cavity morphology .

Oral cavity morphology.— ( Fig. 12C and 14C).

Buccal roof: There are four blunt pustules on the central region of the prenarial arena; three of them are transversely arranged forming a crest. Choanae transversely oriented, with anteromedial and rounded vacuities, posterior margins forming the narial valves, and both margins undulated by the presence of small prenarial pustules, in particular the anterior one. There are about 12 short conical papillae on the postnarial arena forming a transversal line between the lateral ridge papillae. Each square-shaped lateral ridge papilla possesses 4 digitiform projections on the free margin. The low, rounded and wide median ridge presents 11 undulations on its free margin. BFA not defined; there are approximately 130 pustules lying throughout the central area of the buccal roof. The lateral regions possess two pustules per side. Posterior area of the roof with secretory pits and dorsal velum bearing lobated margin.

Buccal floor: Infralabial papillae on infrarostral cartilages absent. There are 2 pairs of digitiform infralabial papillae, both placed on the cartilago meckeli. The anterior pair is shorter than the posterior one which is twofold higher. The lingual anlage bears 2 long and conical lingual papillae on each side of the midline, and some pustules and short papillae on the margins of the anlage. Buccal pockets mostly transversal to the axial axis. Prepocket area with about 20 short papillae. There are 24 long and conical papillae and about 34 pustules on the BFA. The papillae are arranged in two V-shaped patterns. The papillae of the anterior V are forming 2 ridges. The ventral velum lacks the median notch, shows 2–3 marginal projections (the medial ones less evident) on each side, and many secretory pits.