Occurrence of the genus Chiasmocleis (Anura: Microhylidae) in the State of Alagoas, north‐eastern Brazil, with a description of a new species

Abstract

The range of the genus Chiasmocleis found in the south-eastern and southern parts of the Atlantic rainforest of eastern Brazil, is expanded to the north-eastern region. Chiasmocleis alagoanus sp. nov. is described from two localities in the State of Alagoas. It is characterized by: medium size (snout±vent length 25.5±27.8 mm in females, 22.7±23.4 mm in males); snout short, tip truncate in dorsal and rounded in lateral pro®le; hand and foot not webbed; ®ngers and toes without lateral dermal spines; dorsal and ventral surfaces of body and limbs smooth, without dermal spines; colour on dorsum uniformly dark brown; venter roughly marbled in dark brown and pale cream.

High resolution images for Phylogeny, taxonomic revision, and character evolution of the genera Chiasmocleis and Syncope (Anura, Microhylidae) in Amazonia, with descriptions of three new species.

“…In the later case, the following sources were consulted: Nelson, 1975;Duellman and Menselson III, 1995;Krü gel and Richter, 1995;Cruz et al, 1997;Cruz et al, 1999;Nascimento and Skuk, 2006;Moravec and Kö hler, 2007;Funk and Cannatella, 2009 A compilation of data on natural history, both from the literature and novel data (based on field notes and photographs), is given at the end of the manuscript, as is a brief comment on conservation. For these final sections, information on all species is compiled together.…”

“…The status of several Atlantic forest populations of Chiasmocleis were assessed in a revisionary work by Cruz et al (1997), who described three new species. The work by Cruz and his colleagues fueled a growth in taxonomic knowledge regarding populations of Chiasmocleis in the Atlantic forest with several new species subsequently discovered and described (Cruz et al, 1999;Caramaschi and Pimenta, 2003;Cruz et al, 2007a;Cruz et al, 2007b). Caramaschi and Cruz (1997) assessed the taxonomic status of populations from the Cerrado (savannahlike, generally open habitats, typical of central Brazil), and described two new species for the region.…”

O girino de Chiasmocleis alagoanus Cruz, Caramaschi & Freire, 1999 (Anura: Microhylidae)

“…Os girinos de C. alagoanus foram coletados na localidade tipo da espécie (Cruz, Caramaschi e Freire 1999). Trata-se de um remanescente de Floresta Atlântica pertencente à região fitoecológica de Floresta Ombrófila, situado na faixa bioclimática de zero a noventa dias biologicamente secos (Assis 2000).…”

“…Nove dessas espécies são reconhecidas como habitantes da Floresta Atlântica brasileira (Cruz et al 1997, Caramaschi & Pimenta 2003, Canedo et al 2004: C. alagoanus Cruz, Caramaschi & Freire, 1999;C. atlantica Cruz, Caramaschi & Izecksohn, 1997;C.…”

“…Chiasmocleis alagoanus é a única espécie conhecida do gênero que habita remanescentes de Floresta Atlântica no estado de Alagoas, nordeste do Brasil. Cruz et al (1999) incluíram essa espécie no grupo de C. schubarti, caracterizado pela ausência ou presença apenas vestigial de membranas interdigitais. Apenas três espécies de Chiasmocleis possuem girinos conhecidos: C. carvalhoi (Wogel et al 2004) (também do grupo schubarti), C. cf.…”