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Atractus zgap ARTEAGA, QUEZADA, VIEIRA & GUAYASAMIN, 2022

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: ZGAP Ground Snake.
S: Culebra tierrera de ZGAP 
SynonymAtractus zgap ARTEAGA, QUEZEDA, VIEIRA & GUAYASAMIN 2022: 188 
DistributionEcuador

Type locality: Santa Rosa, Napo province, Ecuador (S0.31004, W77.78591; 1500 m).  
Reproduction 
TypesHolotype. ZSFQ 4946 (Figs 5g, 6, 7), adult female collected by Diego Piñán. Paratypes. MZUTI 5311, adult female collected by Diego Piñán in February 2017 at El Chaco, Napo Province, Ecuador (S0.31004, W77.78591; 1500 m). QCAZ 12666, a juvenile collected by Pablo Medrano on 16 May 2014 at San Francisco de Borja, Napo province, Ecuador (S0.40953, W77.84005; 1703 m). QCAZ 5183, a juvenile collected by Patricia Bejarano on 13 November 2011 at Bosque Protector “La Cascada,” Napo province, Ecuador (S0.14572, W77.49593; 1460 m). 
DiagnosisDiagnosis: Atractus zgap is placed in the genus Atractus, as diagnosed by Savage (1960), based on phylogenetic evidence (Fig. 1). The species is diagnosed based on the following combination of characters: (1) 17/17/17 smooth dorsals; (2) two postoculars; (3) loreal 2 × longer than high; (4) temporals 1+2; (5) seven supralabials, third and fourth contacting orbit; (6) seven infralabials, first three contacting chinshields; (7) seven maxillary teeth; (8) three rows of gular scales; (9) two or three preventrals; (10) 173–177 ventrals in females; (11) 31 subcaudals in an uncollected male and 25– 27 subcaudals in females; (12) dorsal ground color brown with faint dark longitudinal lines; (13) venter yellow with fine brown stippling; (14) 376 mm SVL in the female holotype; (15) 37 mm TL in the female holotype (Arteaga et al. 2022). 
CommentDistribution: see map in Arteaga et al. 2022: 184 (Fig. 2) 
EtymologyThe specific epithet zgap is used as a noun in apposition and honors the ‘Zoological Society for the Conservation of Species and Populations’ (ZGAP) (https://www.zgap.de), a program seeking to conserve unknown but highly endangered species and their natural habitats throughout the world. The ZGAP grant program supports the fieldwork of young scientists who are eager to implement and start conservation projects in their home countries. Specifically, ZGAP has supported the work on endangered Andean reptiles in Ecuador conducted by AA and JV. 
References
  • Arteaga A, Quezada A, Vieira J, Guayasamin JM 2022. Leaving no stone unturned: three additional new species of Atractus ground snakes (Serpentes, Colubridae) from Ecuador discovered using a biogeographical approach. ZooKeys 1121: 175–210 - get paper here
  • Kwet, A. 2023. Liste der im Jahr 2022 neu beschriebenen Reptilien. Elaphe 2023 (3): 48-73
  • Melo-Sampaio PR, Venegas PJ 2023. A new species of groundsnake genus Atractus Wagler, 1828 (Serpentes, Dipsadidae) from the Peruvian Andes revealed by unequivocal morphological characters. Evolutionary Systematics 7(2): 257-266 - get paper here
 
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