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| Boana caiapo
Pinheiro, Cintra, Valdujo, Silva, Martins, Silva & Garcia, 2018
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Abstract
We describe a new species of Boana endemic to the Araguaia-Tocantins Basin in the center of the Brazilian Cerrado that was previously confused with species of the B. pulchella group. The new species is tentatively included in the B. albopunctata group on the basis of morphological and bioacoustics traits. The new species is characterized by a rounded head in dorsal view, dorsal color pattern consisting of three longitudinal beige stripes separated by two dark-brown stripes, posterior surfaces of thighs purple with dark-brown spots, and absence of a calcar appendage. Males have a pulsed advertisement call, with the end of the first note possessing an uncountable number of pulses. The new species differs from species of the B. pulchella group by the presence of a slip of the m. depressor mandibulae of scapular origin, presence of anterolateral processes of the hyoid, and curved dentigerous processes of vomers.
Keywords: Amphibia, Bioacoustics, Neotropics, Systematics, Taxonomy
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| Boana caiapo sp. nov. Holotype (MZUSP 138987) |
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| Figure 4. (A) Dorsal and (B) ventral views of the holotype of Boana caiapo sp. nov. (MZUSP 138987).
Scale bar = 10 mm.
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Boana caiapo sp. nov.
Hypsiboas aff. leucocheilus—Valdujo et al. (2012).
Etymology The holotype and topotypic paratypes were collected in lakes and backwaters of small rivulets in the Caiapó River Basin. The Caiapó River originates in the municipality of Caiapônia, Goiás, Brazil, and flows into the Araguaia River between the municipalities of Aragarças and Montes Claros de Goiás. Caiapônia was founded between 1940 and 1950, when the Kayapó Indians inhabited the region. Probably both the city and the river have the origin of their names based on the presence of this tribe in the region. Kayapó is a Tupi Guarani term that means man similar to monkey. Like the name of the tribe, it is probably related to some of their rituals, in which men dance using monkey masks. The name “caiapo” is used as a noun in apposition.
Paulo D. P. Pinheiro, Carlos E. D. Cintra, Paula H. Valdujo, Hélder L. R. Silva, Itamar A. Martins, Nelson Jorge da Silva Jr. and Paulo C. A. Garcia. 2018. A New Species of the Boana albopunctata Group (Anura: Hylidae) from the Cerrado of Brazil. South American Journal of Herpetology. 13(2); 170-182. DOI: 10.2994/SAJH-D-17-00040.1
Resumo: Descrevemos aqui uma nova espécie de Boana endêmica da Bacia do Araguaia-Tocantins, no Cerrado Central brasileiro, e previamente confundida com espécies do grupo de B. pulchella. A nova espécie é tentativamente incluída no grupo de B. albopunctata com base em caracteres morfológicos e de canto. É caracterizada por ter cabeça arredondada em vista dorsal; padrão de coloração dorsal composto por três faixas longitudinais de cor bege intercaladas por outras duas de tom marrom-escuro; superfície posterior das coxas roxa, com pontos marrom-escuro; apêndice calcâneo ausente. Machos apresentam o canto pulsado, cujos pulsos da porção final da primeira nota são incontáveis. A nova espécie se separa do grupo de B. pulchella pela presença da origem ao nível escapular do m. depressor mandibulae, presença do processo antero-lateral do hióide e processos dentígeros dos vômeres maiores e curvados.
