A redescription of Leptodactylus jolyi Sazima and Bokermann (Anura, Leptodactylidae) and the recognition of a new closely related species

Abstract

Based on freshly collected and recorded topotypes, we re-describe Leptodactylus jolyi and describe a closely related new species from the municipality of Uberlândia (MG, Brazil). As some other species of the L. fuscus group, the new species present longitudinal skin folds on dorsal surface of shank. Leptodactylus marambaiae is a shorte-legged species, in L. jolyi the shank reaches 61–65% of the SVL, and 62–68 % in the new species. Males L. jolyi are larger (45 mm SVL) than those of L. gracilis (38.5 mm), than those of L. plaumanni (31–35 mm), and are smaller and more slender than those of the new species (48.3–53.9). In L. jolyi and in the new species the vomerine teeth are in two straight transverse series, in L. gracilis each is a distinct arch. Leptodactylus plaumanni has a fast call rate (13–23/s), in L. gracilis it is 2.5–4/s, in L. jolyi it is just about 0.1–0.3/s and in the new species calls are emitted irregularly (0.02–0.3/s). Leptodactylus jolyi call is composed by 1–3 pulses, while the new species has a single or double-pulsed call; the call also is 25-100% longer in L. jolyi (mode 0.04 s, our sample) than in the new species (mode 0.02 s). We predict that populations in the Cerrado now identified as L. jolyi will turn out to be conspecific with the new species described herein. In the original description the call of L. jolyi is two times longer than that we described here based on topotypes. A possible mistake in time scale in the original description may account for this difference.

A new species of Leptodactylus Fitzinger (Anura, Leptodactylidae) from Serra do Brigadeiro, State of Minas Gerais, Southeastern Brazil

“…A recent molecular phylogeny of amphibians (Frost et al 2006) suggested that the genus Leptodactylus Fitzinger includes the former genera Adenomera Steindachner, Lithodytes Fitzinger, and Vanzolinius Heyer (previously synonymized with Leptodactylus by De Sá et al, 2005), consisting of a total of 83 species (81 species referred in Frost 2007 plus two new species recently described by Giaretta &Costa 2007 andBerneck et al 2008). These species have been traditionally clustered in morphological groups (e.g., Heyer 1970, L. melanonotus group;Heyer 1973, L. marmoratus group;Heyer 1978, L. fuscus group;Heyer 1979Heyer , 2005Heyer 1994, L. podicipinus-L. wagneri group), without a phylogenetic framework.…”

Herpetofauna in a highly endangered area: the Triângulo Mineiro region, in Minas Gerais State, Brazil

“…Our study is the first to consider all reptiles (lizards, snakes, caimans, and freshwater turtles) in the TM region (Costa et al 2014 only covered the snakes). Other species, besides those recorded in faunistic surveys, have been described in the TM region: Uberlândia municipal-ity is the type locality of the Ischnocnema penaxavantinho, Leptodactylus sertanejo, Pseudopaludicola facureae and Apostolepis tertulianobeui (Lema 2004;Giaretta and Costa 2007;Andrade and Carvalho 2013); Boana paranaiba is described in the Araguari municipality ; Drymoluber brazili described in Uberaba (Gomes 1918); and Bokermannohyla napolii in Perdizes, at the border with Serra da Canastra (Carvalho et al 2012).…”

Peer Review #1 of "A new frog of the Leptodactylus fuscus species group (Anura: Leptodactylidae), endemic from the South American Gran Chaco (v0.1)"

“…de Sá et al, 2014). Manuscript to be reviewed stripe, present in the other mentioned species (Heyer, 1970(Heyer, , 1978Sazima & Bokermann, 1978;Giaretta & Costa, 2007;de Carvalho et al, 2013, de Sá et al, 2014. The presence of one or two pairs of dorsolateral folds in the new species differentiates it from L. bufonius, L. latinasus, L.…”

“…nov. and L. mystacinus ( Fig. 3 Manuscript to be reviewed jolyi, L. mystaceus, and L. sertanejo which produce pulsed calls (Heyer, 1978;Sazima & Bokermann, 1978;Heyer & Juncá, 2003;Giaretta & Costa, 2007), and from L. cunicularius, L.…”