Dendropsophus haraldschultzi (Bokermann, 1962)

Schiesari, Luis, Rossa-Feres, Denise De Cerqueira, Menin, Marcelo & Hödl, Walter, 2022, Tadpoles of Central Amazonia (Amphibia: Anura), Zootaxa 5223 (1), pp. 1-149 : 52-53

Dendropsophus haraldschultzi

External morphology. Description based on one tadpole at Stage 36 (CZPB-LA 257/576). Total length 26.9 mm. Body elongate oval in dorsal view and triangular/depressed in lateral view ( Fig. 25A, B ). Snout rounded in dorsal view. Eyes medium-sized, lateral, laterally directed. Nostrils medium-sized, rounded, laterally positioned near to snout, with opening anterolaterally directed, without a projection on the marginal rim. Oral disc ( Fig. 25C ) terminal, non-emarginate; marginal papillae conical, uniseriate, positioned in the ventral margin of posterior labium; anterior labium naked. Lateral marginal papillae partially fused. Submarginal papillae absent. LTRF 0/1; a second thick dermal ridge present in the posterior labium. Jaw sheaths moderately wide, both finely serrated; anterior jaw sheath arch-shaped, posterior jaw sheath U-shaped. Spiracle single, sinistral, long and wide, with posterior tip wider than the anterior, posteriorly directed, opening in the posterior third of the body, with the centripetal wall not fused to the body wall; external wall longer than the centripetal wall. Vent tube dextral, fused to the ventral fin, with a ventral opening. Caudal musculature of moderate width; in lateral view gradually tapering to a pointed tip. Dorsal fin shallow, convex and originating on the anterior third of the tail; ventral fin shallow, convex. Tail tip pointed. Lateral lines visible.

Colour. In preservative body and caudal musculature dark brown with many small rounded spots on the dorsum, lateral body and caudal musculature; fins translucent with irregular dark brown marks on the posterior third ( Menin et al. 2020). In life dorsum, lateral and ventral body grayish-brown with small spots on the anterior portion of the body and yellowish pigment spots from the posterior portion of the body to the tail; digestive tract barely visible; fins translucent with irregular marks grayish-brown on the posterior portion; iris black ( Menin et al. 2020).

Natural history. Eggs were not observed in Central Amazonia. Gravid females contain on average 216 ovarian eggs (Ĥdl 1990). A clutch from Amapá, Brazil, contained 70 unpigmented eggs deposited in a gelatinous mass in the water surface ( Menin et al. 2020). Tadpoles are nektonic. Tadpoles in the root zone of floating meadows in várzea floodplain lakes. Tadpole color pattern is presumably disruptive.

Comments. No morphological variation was observed between populations characterized herein and those from Central Amazonia, in which the original tadpole description was based ( Menin et al. 2020), and those of Colombia ( Lynch & Suárez-Mayorga 2011).

Figures

FIGURE 25. Tadpole of Dendropsophus haraldschultzi (CZPB 257/576) at Stage 36: (A) lateral view, (B) dorsal view (scale = 10 mm), and (C) oral disc (scale = 1 mm).