Boana wavrini (Parker, 1936)

Schiesari, Luis, Rossa-Feres, Denise De Cerqueira, Menin, Marcelo & Hödl, Walter, 2022, Tadpoles of Central Amazonia (Amphibia: Anura), Zootaxa 5223 (1), pp. 1-149 : 49-50

Boana wavrini

External morphology. Description based on four tadpoles between Stages 37 to 39 (LCS 607). Total length 32.7 ± 1.7 mm (N = 4). Body ovoid in dorsal view and globular/depressed in lateral view ( Fig. 23A, B ). Snout point- ed in dorsal view and rounded in lateral view. Eyes small, dorsally positioned and dorsolaterally directed. Nostrils small, oval, dorsolaterally positioned, near to eyes, with opening anterolaterally directed, with a small projection on marginal rim. Oral disc ( Fig. 23C ) ventral, ventrolaterally emarginate; marginal papillae conical, uniseriate, with a dorsal gap. Submarginal papillae absent or with one small papilla laterally. LTRF 2(2)/3[1]; A1 and A2 of the same length; P2 slightly longer than P1 and P3. Jaw sheaths moderately wide, finely serrated; anterior jaw sheath archshaped, posterior jaw sheath U-shaped. Spiracle single, sinistral, conical, short and wide, posterodorsally directed, opening in the posterior third of the body, with the centripetal wall not fused to body wall and longer than the external wall. Vent tube medial, fused to the ventral fin, with a dextral opening. Caudal musculature of moderate width; in lateral view gradually tapering to a pointed tip. Dorsal fin of moderate height and convex, originating at the tailbody junction; ventral fin shallow, parallel to the ventral margin of caudal musculature. Tail tip pointed.

Colour. In preservative dorsum brown with darker reticulation; belly nearly tansparent; caudal musculature cream; fins translucent, both with brown reticulation. In life body, caudal musculature and fins slightly greenish ( Martins & Moreira 1991).

Metamorphs. Metamorph light brown with scattered dark dots on dorsum ( Fig. 23D ).

Natural history. Eggs were not observed in Central Amazonia. In eastern Amazonia the pigmented eggs are deposited as a roughly round monolayer film in water-filled depressions in sandy beaches or vegetation islands of black water rivers and lakes in igapó flooded forests. Tadpoles begin their development in these nests and move to the main water body when water level rises ( Martins & Moreira 1991).

Comments. These tadpoles were described by Martins & Moreira (1991) from Central Amazonia, Brazil, and from Colombia by Lynch & Suárez-Mayorga (2011). Tadpoles from Central Amazonia differ from those herein characterized by presenting snout rounded in dorsal view and slightly truncate in lateral view (although snout seems to be rounded in lateral view in Fig 2 ; Martins & Moreira 1991), tail tip rounded, dorsal fin originating on body, oral disc ventro-terminal, and posterior jaw sheath V-shaped. There is no morphological variation between tadpoles from Colombia and those herein characterized.

Genus Dendropsophus . Tadpoles of genus Dendropsophus found in the Central Amazonia share the following combination of morphological characteristics: body elongate oval or ovoid in dorsal view and triangular or triangular/depressed in lateral view; tail tip pointed or with a flagellum; spiracle sinistral; vent tube dextral (exception: a medial vent tube in D. rossalleni ); oral disc anteroventral or terminal; LTRF 0/0, 0/1 or 1/2.

Figures

FIGURE 2. Walter-Lieth climate diagram of Manaus representing mean monthly temperature (red line, left axis) and precipitation (blue line, right axis) from 1961 to 1990. Data from INMET, Instituto Nacional de Meteorologia (http://www.inmet.gov. br/portal/index.php?r=clima/graficosClimaticos, accessed October 4, 2015)

FIGURE 23. Tadpole of Boana wavrini (LCS 607) at Stage 37: (A) lateral view, (B) dorsal view (scale = 10 mm), and (C) oral disc (scale = 1 mm). (D) Dorsolateral view of newly metamorphosed froglet.