Atractus riveroi ROZE, 1961
Can you confirm these amateur observations of Atractus riveroi?
Atractus riveroi
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| Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Rivero's Ground Snake |
| Synonym | Atractus riveroi ROZE 1961: 114 Atractus riveroi — PETERS & OREJAS-MIRANDA 1970: 34 Atractus riveroi — KORNACKER 1999: 65 Atractus riveroi — PASSOS et al. 2007 Atractus riveroi — WALLACH et al. 2014: 80 Atractus riveroi — NOGUEIRA et al. 2019 |
| Distribution | Venezuela (TF Amazonas), Brazil (Roraima), elevation 1300-1800 m. Type locality: Cerro Duida (1800 m elevation), Territorio Federal Amazonas, Venezuela, (03°25’N, 65°40’W. |
| Reproduction | oviparous |
| Types | Holotype: AMNH 36615, adult male, collected on 20 April 1929 by members of the Tyler–Duida expedition; Paratype: MBUCV 7175, formerly UPR 49 (r-20) |
| Diagnosis | Diagnosis: Atractus riveroi can be distinguished from all congeners by the following combination of characters: (1) smooth dorsal scale rows 17/17/17; (2) postoculars two; (3) loreal long; (4) temporals 1 + 2; (5) supralabials eight, fourth and fifth contacting orbit; (6) infralabials eight, first four contacting chin shields; (7) maxillary teeth seven; (8) gular scale rows three or four; (9) preventrals three or four; (10) ventrals 152–161 in males; (11) subcaudals 34–41 in males; (12) in preservation, dorsum variable, ground color beige with dark brown transversal bands or ground color black with light transversal bands; (13) in preservation, venter cream with rhomboidal dark brown blotches linearly arranged forming irregular stripes; (14) body size moderate, males reaching 415 mm SVL; (15) tail relatively long in males (16.2–18.2% SVL); (16) hemipenis moderately bilobed, semicapitate, semicalyculate [PASSOS et al. 2013]. |
| Comment | |
| Etymology | Named after Dr. Juan Arturo Rivero-Quintero (b. 1923), who gained his bachelor's degree (1945) from Universidad de Puerto Rico, and both his master's (1951) and doctorate (1953) from Harvard. |
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