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Oxyrhopus emberti GONZALES, REICHLE & ENTIAUSPE-NETO, 2020

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymOxyrhopus emberti GONZALES, REICHLE & ENTIAUSPE-NETO 2020 
DistributionBolivia (Santa Cruz)

Type locality: Santa Rosa de Lima (17,87° W,64,25° S), Provincia Florida, Departamento Santa Cruz, Bolivia  
Reproductionoviparous. An adult female (MNKR 2058) collected in December contained nine eggs in its oviduct, while another (CBGR 0061) collected in November contained six eggs (Gonzales et al. 2020). 
TypesHolotype: MNK R2551* (Figs. 1, 2, and 6). Adult female, collected 15/01/98, by Francisco Sagot.
Paratypes: (25 specimens): CBGR, MNK; additional specimens: ZFMK 
DiagnosisDiagnosis: Oxyrhopus emberti sp. nov can be distinguished from all its congeners based on: (1) smooth dorsal scales with two apical pits, 19/19/17 rows; (2) postoculars two; (3) loreal rectangular, wider than higher; (4) temporal formula 2+3, 1+3 (or rarely 1+2); (5) supralabials usually eight, with 4th and 5th (rarely 4th, 5th, and 6th) in contact with orbit; (6) infralabials nine or ten (rarely eight), with 4–5 in contact with first pair of genials; (7) ventrals 197–209 in females, 189–195 in males; (8) subcaudals 66–74 in females, 75–87 in males; (9) in life, dorsum uniform black in adults, juveniles present alternating large black bands, with cream bands on tail and anterior third of body, including nuchal region, bands changing to orange on posterior body (body black bands 4–17 scales wide; body white bands 1–4 scales wide; tail black bands 3–8 scales wide; tail white bands 1–3 scales wide); (10) in life, venter uniform black with yellow gular region in adults, dorsal bands continue onto venter in juveniles; (11) juveniles with black body bands 17–29 and white body bands 16–21, black tail bands 6–11 and white tail bands 7–10; (12) maximum TTL in females 1277 mm and males 916 mm; (13) maxillary teeth 15:13 smooth and two grooved teeth; (14) supraocular and prefrontal in contact, separating preocular from frontal; (15) hemipenis strongly bilobed, bicalyculate, bicapitate, with lateral spines developed and enlarged, in five rows (Gonzales et al. 2020). 
EtymologyNamed after German herpetologist Dirk Embert, who has provided extensive contributions to the Bolivian Herpetology.
  • Gonzales, L., Reichle, S., & Entiauspe-Neto, OM 2020. A new species of Oxyrhopus Wagler, 1830 (Serpentes: Dipsadidae) from the Bolivian Andes. An Acad Bras Cienc 92 (Suppl. 2): e20191428 - get paper here
  • Quintana, Paola De la 2023. Axial dicephaly in the false coral snake, Oxyrhopus emberti (Gonzales, Reichle, and Entiauspe-Neto 2020; Colubridae: Dispsadinae), Santa Cruz, Bolivia. Reptiles & Amphibians 30 (1): e18326 - get paper here
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