Atractus punctiventris AMARAL, 1933
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Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Pointed Ground Snake |
Synonym | Atractus punctiventris AMARAL 1933: 117 Atractus punctiventris — PASSOS et al. 2007 Atractus punctiventris — WALLACH et al. 2014: 79 |
Distribution | Colombia (Meta) Type locality: Villavicencia, Intendencia de Meta, Colombia [= Vilavicencio, Departamento del Meta], (04°09’N, 73°38’W, ca. 500 m elevation |
Reproduction | oviparous |
Types | Holotype: MLS 254, formerly MLS 102. Wallach et al. 2014 states that, "holotype destroyed by fire 15 May 2010." However, Passos et al. 2016 provided a description of the holotype using the existing specimen. |
Diagnosis | Diagnosis: Atractus punctiventris can be distinguished from all congeners by the following combination of characters: (1) smooth dorsal scale rows generally 15/15/15; (2) postoculars two; (3) loreal moderately long; (4) temporal formula 1þ2; (5) supralabials usually seven, third and fourth contacting eye; (6) infralabials usually seven, first three contacting chinshields; (7) maxillary teeth five to six; (8) gular scale rows three; (9) preventrals one or two; (10) ventrals 170–183 in females, 155–167 in males; (11) subcaudals 27– 34 in females, 32–36 in males; (12) in preservative, dorsum pale brown to brown with a series of brown to black irregular light bordered blotches; (13) in preservative, venter creamish white with brown dots or spots generally arranged in the center of ventral scales usually forming a conspicuous midline along belly; (14) maximum body size moderate in females (415 mm SVL) and males (345 mm SVL); (15) moderately long tail in females (12.5–14.0% SVL) and in males (14.4–15.6% SVL); (16) hemipenis slightly bilobed, semicapitate, and semicalyculate (Passos et al. 2016: 4). Additional details (1499 characters) are available for collaborators and contributors. Please contact us for details. |
Comment | Th species is known from less than 10 specimens (Passos et al. 2016). Distribution: Known from the municipalities of Villavicencio (04°09’N, 73°38’W), Meta; San Luís de Gaceno (04°49’N, 73°10’W) Boyaca ́; and Nunchía (05°38’N, 72°12’W), Casanare. |
Etymology | Named after Latin punctum, puncti, point; dot/spot and Latin ventris, stomach, womb; belly. [“...superficie ventral também esbranquiçada com uma estria negra mediana constituida por uma mancha arredondada collocada bem sobre o centro de cada placa ventral das sub-caudaes...”]. (from Esteban Lavilla, pers. comm., May 2024) |
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