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Eunectes notaeus COPE, 1862

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Higher TaxaBoidae (Boinae), Henophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Yellow Anaconda
G: Paraguay-Anakonda, Gelbe Anakonda
Portuguese: Boiguaçu, Curudiu, Curundiu, Quetomeniope, Sucuri, Sucuri-Amarela, Sucurijú, Sucuri-do-Pantanal, Sucuriu 
SynonymEunectes notaeus COPE 1862: 70
Eunectes murinus PERACCA 1895 (nec LINNAEUS)
Eunectes wieningeri STEINDACHNER 1903: 15
Eunectes notaeus — KAHL et al. 1980: 207
Eunectes notaeus — CEI 1993
Eunectes notaeus — LEYNAUD & BUCHER 1999: 14
Eunectes notaeus — MCDIARMID, CAMPBELL & TOURÉ 1999: 201
Eunectes notaeus — ZARACHO et al. 2014
Eunectes notaeus — WALLACH et al. 2014: 291
Eunectes notaeus — REYNOLDS & HENDERSON 2018: 22
Eunectes notaeus — NOGUEIRA et al. 2019
Eunectes notaeus — DUBOIS et al. 2024 
DistributionBolivia, Paraguay, Uruguay, W Brazil (Mato Grosso, Mato Grosso do Sul, Rio Grande do Sul, Paraná [HR 27: 216], São Paulo), NE Argentina (Chaco, Corrientes, Entre Rios, Formosa, Misiones, Santa Fé, Corrientes, Santiago del Estero).

Type locality: Paraguay River and its tributaries  
Reproductionovovivparous 
TypesHolotype: lost, was USNM 4707 (lost fide Reynolds & Henderson 2018)
Holotype: NMW 18929 [wieningeri] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (3789 characters), are available for collaborators and contributors. Please contact us for details. 
CommentHybridization: Hybrids between Eunectes notaeus and E. murinus have been described and E. deschauenseei is extremely closely related to E. notaeus (fide DIRKSEN & BÖHME 1998).

Phylogenetics: E. notaeus, beniensis, and deschauenseei are closely related and Rivas et al. 2024 suggested to synonymize them, cofirming data by Tarkhnishvili et al. 2022.

Distribution: see map and list of localities in Tarkhnishvili et al. 2022: 380 (Fig. 1). 
EtymologyNamed after Greek notiaios (νωτιαῖος), of the back. (COPE 1862, Esteban Lavilla, pers. comm., April 2024) 
References
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