Redescription of Hypsiboas Semiguttatus, with the Description of a New Species of the Hypsiboas pulchellus Group

We redescribe Hypsiboas semiguttatus (Lutz, 1925) and describe its tadpole and vocalization. We also describe a new species, previously confused with H. semiguttatus from Misiones, Argentina, and potentially from Brazil. This new species differs from H. semiguttatus in being more robust, having a tadpole with complete marginal papillation (no anterior gap), and a labial tooth row formula of 3/5. We discuss the status of populations previously assigned to H. semiguttatus and discuss the relationships of the new species within the Hypsiboas pulchellus group.

Figure 1

Hypsiboas semiguttatus, holotype (AL-MNRJ 68, female). SVL 38.9 mm.

Figure 2

Hypsiboas semiguttatus from Piraquara, State of Paraná (CFBH 3364, male). (A) Lateral view. (B) Dorsal view. SVL 39.5 mm.

Figure 3

Hypsiboas semiguttatus (CFBH 3364, male). (A) Head in dorsal view. (B) Head in profile. (C) Palmar view of left hand. (D) Plantar view of left foot.

Figure 4

Tadpole of Hypsiboas semiguttatus (CFBH 5407, stage 35). (A) Dorsal view. (B) Lateral view. (C) Ventral view. (D) Oral disc.

Figure 5

Audiospectrogram (above) and waveform (below) from advertisement calls of Hypsiboas semiguttatus from Piraquara, State of Parana: Call with two notes (A and B, respectively) from CFBH 3364 (Recording PCAG 14/2). Air temperature 21.0 C.

Figure 6

Geographic distribution of Hypsiboas curupi, new species (closed circles; closed star: type locality); Hypsiboas sp. (aff. curupi; open circles); Hypsiboas joaquini (closed squares); Hypsiboas cf. joaquini (open squares); Hypsiboas sp. (aff. joaquini; open rhomb); Hypsiboas semiguttatus (closed triangles; open star: type locality); Hypsiboas sp. (aff. semiguttatus; open triangle).

Figure 7

Holotype of Hypsiboas curupi (MACN 34949), adult male. (A) Head in dorsal view. (B) Head in profile. (C) Palmar view of left hand. (D) Plantar view of left foot.

Figure 8

Hypsiboas curupi, adult males, paratopotypes. (A) Lateral view (CFBH 3444). SVL 37.5 mm. Note scars on head and dorsum. (B) Dorsal view (CFBH 3445). SVL 36.0 mm.

Figure 9

Audiospectrogram (above) and waveform (below) of the advertisement call of Hypsiboas curupi. Two notes (A and B) from MACN 37810 (recording JF, 14 Dec. 2001, type locality). Air temperature 20.4 C.

Contributor Notes

Section editor: M. J. Lannoo.

(PCAG) Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré, 481, Ipiranga 04263-000, São Paulo, Brazil, e-mail: (PCAG) pcagarcia@gmail.com(JF) Departamento de Zoologia, I.B., UNESP, Caixa Postal 199, 13506-900, Rio Claro, São Paulo, Brazil; , División HerpetologÍa, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” , Buenos Aires, Argentina; , Division of Vertebrate Zoology (Herpetology), American Museum of Natural History, New York, New York, e-mail: (JF) julian@rc.unesp.br(CFBH) Departamento de Zoologia, I.B., UNESP, Caixa Postal 199, 13506-900, Rio Claro, São Paulo, Brazil, e-mail: (CFBH) haddad@rc.unesp.br. Send reprint requests to PCAG.

Received: 17 Jul 2006

Accepted: 08 Jun 2007