Atractus atratus PASSOS & LYNCH, 2010
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|Higher Taxa||Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Synonym||Atractus atratus PASSOS & LYNCH 2010|
Atractus atratus — WALLACH et al. 2014: 68
|Distribution||Colombia (Huila: eastern slopes of the Central Cordillera, elevation 1700-2000)|
Type locality: Parque Nacional Natural Cueva de Los Guacharos (ca. 1800 m elevation), municipality of Acevedo, department of Huila, Colombia.
|Types||Holotype: IAvH 151, adult female, (Instituto Alexander Von Humboldt (IAvH), Villa de Leyva, Boyaca); Paratypes: (n=2) from department of Huila, Colombia. Subadult female ICN 11512 (FLL 273), collected on 12 October 2004 by F. L. Lopez and M. P. Valencia-Rojas, Corregimento Morelia (02° 03’ N, 76° 07’ W, 1710 m), municipality of Saladoblanco; subadult male IAvH 131, same data as holotype|
|Diagnosis||Diagnosis. Atractus atratus is distin- guished from all congeners by having: (1) 17/ 17/17 smooth dorsal scale rows; (2) two postoculars; (3) moderate loreal; (4) temporals 1 + 2; (5) seven or eight supralabials, generally third and fourth contacting orbit; (6) eight infralabials, first four contacting chinshields; (7) seven or eight maxillary teeth; (8) three or four gular scale rows; (9) three or four preventrals; (10) 150–153 ventrals in females and 140 in the single male; (11) 22–24 subcaudals in females and 29 in the male; (12) dorsum dark brown with transverse cream irregular blotches; (13) venter uniformly brown or dark brown with a few cream flecks; (14) moderate body size, females reaching 502 mm SVL, males 317 mm SVL; (15) moderate tail length in females (10.0– 10.8% SVL) and long (15% SVL) in the single male; (16) hemipenis moderately bilobed, semicapitate, semicalyculate.|
|Etymology||The specific epithet ‘‘atratus’’ is derived from Latin adjective ater, meaning something dressed in black. This word is used herein in reference to the uniformly dark coloration of the belly of the new species.|
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