A NEW SPECIES OF ATRACTUS (SERPENTES: COLUBRIDAE) FROM SOUTHERN BRAZIL

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A NEW SPECIES OF ATRACTUS (SERPENTES: COLUBRIDAE) FROM SOUTHERN BRAZIL

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2005 Paulo PASSOS, Ronaldo FERNANDES, Noeli ZANELLA

Summary

ABSTRACT: A new species of Atractus is described from grasslands of the State of Rio Grande do Sul, southern Brazil. The new species is distinguished from all congeners by the combination of a single postocular, long loreal, six supralabials, generally six infralabials, 17 dorsal scales rows, six or seven maxillary teeth, and a dorsal color pattern in preservative uniformly grayish-brown with a creamish-white temporal region. Comparisons of the new species are made with all other Atractus species, and its affinities with A. reticulatus and allied species are suggested based on the morphology of the hemipenis.
Key words: Atractus thalesdelemai new species; Dipsadinae; Southern Brazil; Systematics; Taxonomy

A contribution of Jean-François Olivier

English

Brazil

Reptiles (Reptilia)

New species or subspecies

scientific paper, free PDF on the internet

Contents and pictures

10 pages

Species description, black and white drawings, geographical maps, geographical distribution in the text

Reference Nadaba : 28499

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Jean-François Olivier