First record of Scinax centralis (Anura, Hylidae) in the Triângulo Mineiro region, state of Minas Gerais, southeastern Brazil, with further data on its vocalization

Abstract

Scinax comprises more than 120 species which are split in two clades, the S. ruber and the S. catharinae clades. A few species within the S. catharinae clade occur in gallery forests of the Brazilian Cerrado. We here extend the distribution of S. centralis southwards based on new populations sampled in the banks of the Rio Paranaíba, in the borders of Minas Gerais (MG) and Goiás (GO) states, southeastern Brazil. We also provide further data on the species vocalization. Variation was seen among our population and topotypes regarding SVL and call dominant frequency, both likely representing a clinal variation. Our new population of S. centralis represents the first record of the species for the state of Minas Gerais.

Treefrog Diversity in the Neotropics: Phylogenetic Relationships of Scinaxini (Anura: Hylidae: Hylinae)

“…In males of some species of Scinax (e.g., S. eurydice, S. granulatus, S. haddadorum, and S. pachycrus) there is a white, slightly thickened area in the pectoral region that could be glandular, but we did not observe the presence of packed acini in this region, and therefore scored these species as lacking pectoral glands. Glandular acini in the pectoral region were reported for S. goya (Andrade et al, 2018) and S. feioi (Lourenço et al, 2020), and we considered them to be homologous with those present in other species of Scinax. This assumption should be tested with histological studies.…”

“…; Ololygon canastrensis (Cardoso and Haddad, 1982); Ololygon carnevallii Caramaschi and Kisteumacher, 1989; Ololygon catharinae (Boulenger, 1888a); Ololygon centralis (Pombal and Bastos, 1996); Ololygon flavoguttata (Lutz and Lutz, 1939); Ololygon garibaldiae (Lourenço et al, 2019) new comb. ; Ololygon goya Andrade et al, 2018;Ololygon heyeri Peixoto and Weygoldt, 1987; Ololygon hiemalis (Haddad and Pombal, 1987); Ololygon humilis (Lutz, 1954); Ololygon jureia (Pombal and Gordo, 1991); Ololygon kautskyi Carvalho-e- Ololygon littoralis (Pombal and Gordo, 1991); Ololygon longilinea (Lutz, 1968b); Ololygon luizotavioi Caramaschi and Kisteumacher, 1989; Ololygon machadoi (Bokermann and Sazima, 1973); Ololygon muriciencis (Cruz et al, 2011); Ololygon obtriangulata (Lutz, 1973b); Ololygon pixinguinha (Lacerda et al, 2021) new comb. ; Ololygon pombali (Lourenço et al, 2013); Ololygon ranki (Andrade and Cardoso, 1987); Ololygon rizibilis (Bokermann, 1964a); Ololygon skaios ; Ololygon strigilata (Spix, 1824); Ololygon trapicheiroi (Lutz, 1954); and Ololygon tripui (Lourenço et al, 7 Some very long multi-note calls described for species in the O. catharinae group (duration up to 52 s; Pereyra et al, 2012) Faivovich (2002) proposed that the partial mineralization of intercalary elements between ultimate and penultimate phalanges (our Ch.…”

“…Treefrog diversity in the Neotropics: Phylogenetic relationships of Scinaxini (Anura: Hylidae: Hylinae) Katyuscia Araujo-Vieira, Ana Carolina C. Lourenço, João Victor Lacerda, Mariana L. Lyra, Boris L. Blotto, Santiago R. Ron, Diego Baldo, ... Julián Faivovich oideus, and oviposition site in permanent or temporary ponds. Furthermore, they are so far the only species in the O. catharinae group known to share a long-call pattern (Hepp et al, 2017;Bang and Giaretta, 2018), being a long series of short, squawk-like notes with gradually ascending amplitude and long duration (also occurring in the O. argyreornata group).…”

“…UPDs between specimens of these clades are 1.5−2.0% (Appendix S10: Table 12). Bang and Giaretta (2017) reported that O. hiemalis and O. ranki were phenotypically indistinguishable, differing only in some quantitative acoustic parameters (pulse rate, call, and note duration). Our results recover both species as only distantly related (see below for comments on the position of O. hiemalis), supporting them as different species.…”

“…25). These species are characterized by the externally evident inguinal glands (particularly hypertrophied in O. centralis; Lourenço et al, 2013Lourenço et al, , 2014; the exceptions being O. goya and O. pombali, which lack them (Lourenço et al, 2013;Andrade et al, 2018). Within this clade, interspecific relationships are poorly supported but fully resolved (Fig.…”