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1 June 2016 A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil
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Abstract

Helicops is a genus of Neotropical watersnakes containing 16 species. Based on morphological (scale counts, dentition, coloration, and hemipenis anatomy) and genetic data (16S rRNA and C-mos genes), we identify a new species of this genus. The new taxon is diagnosed by having 17-17-15 dorsal scale rows; 111–117 ventral plates; 41–56 subcaudals without keels; nasal entire; 18–21 2 maxillary teeth; hemipenis bilobed, semicalyculate, and semicapitate; dorsum uniformly medium brown or dark brown; venter cream or light brown with two medial rows of black markings, usually semilunar in shape. The new species occurs from southeastern to northern Minas Gerais state, Brazil.

© 2016 by The Herpetologists' League, Inc.
Henrique C. Costa, Diego J. Santana, Fernando Leal, Ricardo Koroiva, and Paulo C.A. Garcia "A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil," Herpetologica 72(2), 157-166, (1 June 2016). https://doi.org/10.1655/HERPETOLOGICA-D-15-00059
Accepted: 1 February 2016; Published: 1 June 2016
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