Abstract
The genus Hylodes Fitzinger currently comprises 26 species of Torrent frogs, organized into four morphological taxonomic groups (Heyer 1982; Frost 2020): Hylodes glaber, H. lateristrigatus, H. mertensi, and H. nasus groups. Hylodes lateristrigatus is the most speciose group, comprising today 20 known species (Frost 2020). Nested in this group, a clade has been recovered based on molecular evidence, gathering the only four Hylodes species that are known to have males with nuptial thumb tubercles (de Sá et al. 2015; Malagoli et al. 2017). This well-supported clade includes H. phyllodes Heyer & Cocroft, Hylodes fredi Canedo & Pombal, H. pipilans Canedo & Pombal, and H. caete Malagoli, de Sá, Canedo & Haddad. Among these four Torrent frogs, tadpoles are unknown only for the most recently described H. caete (see tadpole descriptions in Heyer et al. 1990; Laia et al. 2010; Nogueira-Costa et al. 2019). With important taxonomic and conservation implications for the family Hylodidae (Laia & Rocha 2012), we describe here the tadpole of Hylodes caete, a species endemic to the crests and slopes of Serra do Mar, State of São Paulo, southeastern Brazil (Malagoli et al. 2017). The present description is particularly important because, in its type-locality, H. caete occurs in sympatry and syntopy with H. phyllodes (Malagoli et al. 2017).
References
Altig, R. (2007) A primer for the morphology of anuran tadpoles. Herpetological Conservation and Biology, 2, 71–74.
Altig, R. & McDiarmid, R.W. (1999) Body plan: development and morphology. In: McDiarmid, R.W. & Altig, R. (Eds.), Tadpoles: The Biology of Anuran Larvae. The University of Chicago Press, Chicago and London, pp. 24–51.
Bilate, M., Nogueira-Costa, P. & Weber, L.N. (2012) The tadpole of the hylodid frog Hylodes ornatus (Bokermann, 1967), including chondrocranium description, and advertisement call. Zootaxa, 3249 (1), 60–66.
https://doi.org/10.11646/zootaxa.3249.1.6
Costa, T.R.N., Lingnau, R. & Toledo, L.F. (2009) The tadpole of the Brazilian torrent frog Hylodes heyeri (Anura; Hylodidae). Zootaxa, 2222 (1), 66–68.
https://doi.org/10.11646/zootaxa.2222.1.6
de Sá, F.P., Canedo, C., Lyra, M.L. & Haddad, C.F.B. (2015) A new species of Hylodes (Anura, Hylodidae) and its secretive underwater breeding behavior. Herpetologica, 71, 58–71.
https://doi.org/10.1655/HERPETOLOGICA-D-13-00053
Frost, D.R. (2020) Amphibian species of the world: an online reference, electronic database. Version 6. American Museum of Natural History, New York. Available from: http://research.amnh.org/herpetology/amphibia/index.html (accessed 19 March 2020)
Gomes, F.B.R., Provete, D.B. & Martins, I.A. (2012) Description of the tadpole of Hylodes magalhaesi (Bokermann, 1964) (Anura: Hylodidae). Journal of Herpetology, 46, 614–619.
https://doi.org/10.1670/11-039
Gosner, K.L. (1960) A simplified table for staging anuran embryos and larvae with notes on identification. Herpetologica, 16, 183–190.
Haddad, C.F.B. & Pombal Jr., J.P. (1995) A new species of Hylodes from southeastern Brazil (Amphibia: Leptodactylidae). Herpetologica, 51, 279–286.
Haddad, C.F.B., Garcia, P.C.A. & Pombal, J.P. (2003) Redescrição de Hylodes perplicatus (Miranda-Ribeiro, 1926) (Amphibia, Anura, Leptodactylidae). Arquivos do Museu Nacional, 61, 245–254.
Heyer, W.R. (1982) Two new species of the frog genus Hylodes from Caparaó, Minas Gerais, Brasil (Amphibia: Leptodactylidae). Proceedings of the Biological Society of Washington, 95, 377–385.
Heyer, W.R., Rand, A.S., Cruz, C.A.G., Peixoto, O.L. & Nelson, C.E. (1990) Frogs of Boracéia. Arquivos de Zoologia, 31, 231–410.
Kumar, S., Stecher, G. & Tamura, K. (2016) MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Molecular Biology and Evolution, 33, 1870–1874.
https://doi.org/10.1093/molbev/msw054
Laia, R.C., Fatorelli, P., Hatano, F.H. & Rocha, C.F.D. (2010) Tadpole of Hylodes fredi (Anura; Hylodidae), a frog endemic to an Atlantic Forest island (Ilha Grande, Rio de Janeiro State), Brazil. Zootaxa, 2640 (1), 62–64.
https://doi.org/10.11646/zootaxa.2640.1.5
Laia, R.C. & Rocha, C.F.D. (2012) Adults and tadpoles of species of Hylodidae (Anura): history and taxonomy perspectives. Zoologia, 29, 89–94.
https://doi.org/10.1590/S1984-46702012000100012
Lannoo, M.J. (1999) Integration: nervous and sensory systems. In: McDiarmid, R.W. & Altig, R. (Eds.), Tadpoles: The Biology of Anuran Larvae. The University of Chicago Press, Chicago and London, pp. 149–169.
Lutz, A. (1930) Observações sobre batrachios brasileiros - taxonomia e biologia das Elosiinas. Memórias do Instituto Oswaldo Cruz, 24, 195–222.
https://doi.org/10.1590/S0074-02761930000900001
Malagoli, L.R., de Sá, F.P., Canedo, C. & Haddad, C.F.B. (2017) A new species of Hylodes (Anura, Hylodidae) from Serra do Mar, southeastern Brazil: the fourth with nuptial thumb tubercles. Herpetologica, 73, 136–147.
https://doi.org/10.1655/HERPETOLOGICA-D-16-00069
Nascimento, L.B., Pombal Jr., J.P. & Haddad, C.F.B. (2001) A new frog of the genus Hylodes (Amphibia: Leptodactylidae) from Minas Gerais, Brazil. Journal of Zoology, 254, 421–28.
https://doi.org/10.1017/S0952836901000917
Navarro-Lozano, A., Sánchez-Domene, D., Rossa-Feres, D.C., Bosch, J. & Sawaya, R.J. (2018) Are oral deformities in tadpoles accurate indicators of anuran chytridiomycosis? PLoS One, 13 (1), e0190955.
https://doi.org/10.1371/journal.pone.0190955
Nogueira-Costa, P., Siqueira, C.C., Vrcibradic, D., Weber, L.N. & Rocha, C.F. (2010) The tadpole of the hylodid frog Hylodes charadranaetes Heyer and Cocroft, 1986. Zootaxa, 2680 (1), 65–68.
https://doi.org/10.11646/zootaxa.2680.1.6
Nogueira-Costa, P. & Wachlevski, M. (2015) The tadpole of Hylodes meridionalis (Mertens, 1927), a lotic stream anura from the Atlantic rainforest of Brazil. Zootaxa, 4032, 199–202.
https://doi.org/10.11646/zootaxa.4032.2.5
Nogueira-Costa, P., Weber, L.N., Wogel, H., Salles, R.O.L. & Bilate, M. (2019) A description of the tadpoles of Hylodes pipilans Canedo & Pombal, 2007: an endemic species of the Atlantic Forest of Brazil. Herpetological Conservation and Biology, 14, 370–379.
Palumbi, S.R., Martin, A., Romano, S., McMillan, W.O., Stice, L. & Grabowski, G. (1991) The Simple Fool’s Guide to PCR. University of Hawaii, Honolulu, USA.
Pirani, R.M., Pezzuti, T.L., Motta, A.P. & Feio, R.N. (2011) The tadpole of Hylodes babax Heyer, 1982 (Amphibia, Anura, Hylodidae). Zootaxa, 2800 (1), 64–68.
https://doi.org/10.11646/zootaxa.2800.1.5
Pombal Jr., J.P., Feio, R.N. & Haddad, C.F.B. (2002) A new species of torrent frog genus Hylodes (Anura: Leptodactylidae) from southeastern Brazil. Herpetologica, 58, 462–471.
https://doi.org/10.1655/00180831(2002)058[0462:ANSOTF]2.0.CO;2.
Quinzio, S.I. & Goldberg, J. (2019) Transient integumentary structures in Boana riojana (Anura,Hylidae) tadpoles. Amphibia-Reptilia, 40, 543–549.
https://doi.org/10.1163/15685381-20191226
Sazima, I. & Bokermann, W.C.A. (1982) Anfíbios da Serra do Cipó, Minas Gerais, Brasil. 5: Hylodes otavioi sp.n. (Anura, Leptodactylidae). Revista Brasileira de Biologia, 42, 767–771.
Toledo, L.F., Haddad, C.F.B., Carnaval, A.C.O.Q. & Britto, F.B. (2006) A Brazilian anuran (Hylodes magalhaesi: Leptodactylidae) infected by Batrachochytrium dendrobatidis: a conservation concern. Amphibian and Reptile Conservation, 4, 17–21.
https://doi.org/10.1514/journal.arc.0040017
Wilkinson, J.A., Matsui, M. & Terachi, T. (1996) Geographic variation in a Japanese tree frog (Rhacophorus arboreus) revealed by PCR-aided restriction site analysis of mtDNA. Journal of Herpetology, 30, 418–423.