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Atractus pearti PASSOS, MENESES-PELAYO, RAMOS, MARTINS, MACHADO, LOPES, BARRIO-AMORÓS & LYNCH, 2024

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymAtractus pearti PASSOS, MENESES-PELAYO, RAMOS, MARTINS, MACHADO, LOPES, BARRIO-AMORÓS & LYNCH 2024: 101
Atractus turikensis — MONTES‐CORREA et al. 2017 
DistributionColombia (Guarija south to municipality of La Paz, department of Cesar), elevation 800−2,500 m.

Type locality: Finca Puerto Rico (10°35′24.46′′N, 72°51′19.01′′W; 846 m asl), Vereda Puerto Rico, El Molino River, municipal‐ ity of El Molino, department La Guajira, Colombia (Fig. 90).  
Reproduction 
TypesHolotype. Adult male, UIS‐R 4877, collected by Fabio Leonardo Meza-Joya (field number NG-270) on 17 July 2012.
Paratypes. Four specimens all from Colombia: two (UIS‐R 4878, 4879, respectively field numbers NG 282, 283) collected on 19 July of 2012 at Vereda Nuevas Ideas (10°34′58.99′′N, 72°49′07.48′′W; 1,879 m asl) and (10°34′58.85′′N, 72°49′06.69′′W; 1,891 m asl), respectively in the Sector Pozo del Oso near the border with Venezue‐ la, municipality of El Molino, department La Guajira; two other females (CBUMAG:REP 299, 300) collected in Sep‐ tember 2015 by A.C. Montes‐Correa and team at El Jordán Stream (10°17′47.3′′N, 72°55′55.8′′W; 2,540 m asl), El Con‐ tento Village, district of San José de Oriente, municipality of La Paz, department of Cesar (Figs. 90−93).
 
DiagnosisDiagnosis: Atractus pearti can be distinguished from all congeners by the following combination of characters: (1) dorsal scale rows smooth, 17/17/17; (2) postoculars two; (3) loreal moderately long; (4) temporal formula 1 + 2; (5) supralabials seven, 3 and 4 contacting eye; (6) infralabials seven, 1−3 contacting chinshields; (7) maxillary teeth 6−8; (8) gular scale rows usually three; (9) preventrals usually three; (10) ventrals 169−179 in females, 156 in only known male; (11) subcaudals 25−28 in females, 30 in only male; (12) in preservative, dorsum brown with black blotches and spots cream bordered, forming a barely variegate pattern, sometimes with an irregular vertebral stripe connected to black marks; (13) in preservative, ventral ground color usually predominantly black, except for lateral margins of ventral, sometimes cream with diffuse dark marks; (14) large body size in females, reaching 659 mm SVL, small in male, reaching 283 mm SVL; (15) tail short in females (9.4−10.9% SVL), moderate in male (13.1% SVL); (16) hemipenis moderately bilobed, semicapitate, semicalyculate; (17) laterosphenoid unknown. (Passos et al. 2024)


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References
  • Passos, P., Meneses-Pelayo, E., Ramos, L. O., Martins, A. R., Machado, A., Lopes, R. T., ... & Lynch, J. D. 2024. Taxonomy without borders: Revision of the genus Atractus (Serpentes: Dipsadidae) from the Andes between Colombia and Venezuela. South American Journal of Herpetology, 32(sp1), 1-123 - get paper here
 
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