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1 October 2019 The Tadpole of Scinax cardosoi (Carvalho-e-Silva and Peixoto, 1991), with Description of Internal Oral Morphology and Taxonomic Considerations (Anura: Hylidae)
Juliana Kirchmeyer, Joice Ruggeri, Marcia dos Reis Gomes, Sergio Potsch de Carvalho-e-Silva
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Abstract

Larval traits provide useful taxonomic characters. The only morphological synapomorphy that separates Scinax species from Ololygon species comes from larvae. However, tadpoles of Ololygon and Scinax remain undescribed; furthermore, there is a lack of information regarding their internal oral cavities. Herein, we describe the tadpole of Scinax cardosoi and its internal oral morphology. Overall, the body is triangular and depressed in lateral view and oval in dorsal view, the dorsal fin is slightly higher than the lower fin, and the tooth row formula is 2(1,2)/3. The tadpole of S. cardosoi can be distinguished from tadpoles of Ololygon and Scinax by its oral disc morphology and oral papillae arrangement. The position of the larval vent tube, as well as some adult features, suggest a close relationship between S. cardosoi and species of Ololygon, leading us to transfer the species from Scinax to Ololygon.

© 2019 Brazilian Society of Herpetology
Juliana Kirchmeyer, Joice Ruggeri, Marcia dos Reis Gomes, and Sergio Potsch de Carvalho-e-Silva "The Tadpole of Scinax cardosoi (Carvalho-e-Silva and Peixoto, 1991), with Description of Internal Oral Morphology and Taxonomic Considerations (Anura: Hylidae)," South American Journal of Herpetology 14(3), 188-195, (1 October 2019). https://doi.org/10.2994/SAJH-D-17-00043.1
Received: 31 May 2017; Accepted: 25 September 2018; Published: 1 October 2019
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KEYWORDS
Atlantic forest
larvae
new combination
Ololygon
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