Sao Paulo Keelback

distribution

Distribution. Endemic to Brazil (Plt. 280 A) recorded only in the southern portion of the Cerrado and its contact areas with Atlantic Forest (Plt. 280 A) at intermediate to high elevations of the upper Paraná basin (Plt. 280 B). Observed in the field in wet grassland and palm marshes (Valdujo et al., 2009).

Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna

materials_examined

Type locality. EstaÇão Costa Pinto, Piracicaba, state of São Paulo, Brazil.

Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna

Diagnosis

Helicops gomesi is distinguished from all its congeners, except H. angulatus by having subcaudal keels, no intergenials, and 19 dorsal scale rows throughout its body (compared to 21–24/21–22/17–19 in H. apiaka ). From H. angulatus , it differs in having 125–132 ventrals in males and 128–132 in females (versus 103–119 in males and 104–125 in females of H. angulatus); (for information on references, see Suppl. material 3).

Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)

Distribution

The distribution of H. gomesi extends from the Brazilian Province Sao Paulo to the Provinces Mato Grosso, Mato Grosso do Sul and Goias (Fig. 1f).

Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)