Atractus avernus PASSOS, CHIESSE, TORRES-CARVAJAL & SAVAGE, 2009
Can you confirm these amateur observations of Atractus avernus?
Atractus avernus
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| Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | |
| Synonym | Atractus avernus PASSOS, CHIESSE, TORRES-CARVAJAL & SAVAGE 2009 Atractus avernus — WALLACH et al. 2014: 69 |
| Distribution | Colombia (Caquetá) Type locality: Paraíso (01° 14’ N, 75° 37’ W, ca. 480 m elevation), municipality of Florencia, Department of Caquetá, Colombia |
| Reproduction | oviparous (not imputed, fide Zimin et al. 2022) |
| Types | Holotype: MLS 2725, adult female, collected by Brother Niceforo Maria. |
| Diagnosis | Diagnosis: Atractus avernus can be distinguished from all congeners by the following combination of characters: (1) 15/15/15 dorsal scale rows, smooth, without apical pits and keels; (2) 2 postoculars; (3) long loreal; (4) temporals 1+2; (5) 7 supralabials, 3rd and 4th contacting orbit; (6) 7 infralabials, first 4 contacting chinshields; (7) 5 prediastemal and 2 postdiastemal maxillary teeth; (8) 3 gular scale rows; (9) 4 preventrals; (10) 135 ventrals on the single female; (11) 10 subcaudals; (12) dorsal color pattern dark brown with a creamish white occipital band, and paravertebral paired light dots along body; (13) venter creamish white and tail uniform black; (14) small size, only female reaching 168 mm; (15) short tail in the female (5.3% SVL). |
| Comment | This description is based on a single female. |
| Etymology | The specific epithet ‘‘avernus’’ is a Latin word meaning the nether world or infernal regions of the earth. This name is used herein in allusion to the apparent secretive habits of the new species. |
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