You are here » home advanced search Eunectes murinus

Eunectes murinus (LINNAEUS, 1758)

Can you confirm these amateur observations of Eunectes murinus?

Add your own observation of
Eunectes murinus »

Find more photos by Google images search: Google images

Higher TaxaBoidae (Boinae), Henophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesE: Anaconda, Green Anaconda
G: Große Anakonda 
SynonymBoa murina LINNAEUS 1758: 215
Boa scytale LINNAEUS 1758: 214
Boa aquatica WIED-NEUWIED 1824
Eunectes murinus — WAGLER 1830: 167
Eunectes murinus — DUMÉRIL & BIBRON 1844: 528
Eunectes murinus — BOULENGER 1893: 115
Eunectes murinus — MCDIARMID, CAMPBELL & TOURÉ 1999: 200
Eunectes murinus gigas (LATREILLE in BUFFON 1801)
Boa gigas LATREILLE 1802
Eunectes barbouri DUNN & CONANT 1936: 504
Eunectes gigas — BEEBE 1946: 20
Eunectes murinus murinus — DUELLMAN 1978: 227
Eunectes murinus — STRIMPLE et al. 1997
Eunectes murinus — STARACE 1998: 111
Eunectes murinus gigas — GORZULA & SEÑARIS 1999
Eunectes murinus gigas — BOOS 2001
Eunectes murinus — WALLACH et al. 2014: 291 
DistributionVenezuela, Colombia, Brazil (Goias, Bahia, Sergipe, Ceara etc.), Ecuador, E Paraguay, N Bolivia, NE Peru, Guyana, French Guiana, Trinidad

Type locality: "America". Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
ReproductionO’Shea et al. (2016) 
TypesHolotype: NRS Lin. 9
Holotype: ANSP 20892, Island of Marajo, at mouth of Amazon [barbouri] 
CommentSynonymy: Eunectes murinus gigas (LATREILLE in BUFFON 1801) was synonymized by DIRKSEN & BÖHME 1998. These authors hypothesized that E. murinus hybridizes with E. notaeus but later realized that these “hybrids” are a new species, E. beniensis. Kaiser et al. 2013 rejected the subgeneric name Maxhoserboa Hoser 2012 and synonymized it with Eunectes.

Size: E. murinus is one of the largest snake species; one specimen reached 8.45 m (BELLOSA 2003), according to other sources 9.6 m (FLINDT 2002). ROBERTSON (1998) mentioned a skin of 29 feet (8.6 m) that also lacked its head and thus must have measured almost 9 m when alive.

Distribution: The map in Trutnau 1982 is erroneous. Compare to map in DIRKSEN (2000).

Diet: Large E. murinus have been documented to feed on calfs, caimans, young tapirs, and other large animals (BARONE 2006).

Type species: Boa scytale LINNAEUS 1758 is the type species of the genus Eunectes WAGLER 1830. 
References
  • Barone, S. 2006. Python vs. Tiger! Incredible but true attacks by giant snakes. Reptilia (GB) (46): 71-76 - get paper here
  • Beddard, F.E. 1906. Contributions to the Anatomy of the Ophidia. Proc. Zool. Soc. London 1906: 12-44
  • Beebe, William 1946. Field notes on the snakes of Kartabo, British Guiana, and Caripito, Venezuela. Zoologica 31: 11-52
  • Bellosa, H. 2003. Record Snake Fascination. Reptilia (GB) (27): 28-30 - get paper here
  • Bellosa, H., L. Dirksen & M. Auliya 2007. Faszination Riesenschlangen - Mythos, Fakten und Geschichten. BLV-Verlag, 160 pp.
  • Bellosa, Henry & Ralf Mössle 2009. Freilandforschung und Terrarienbeobachtung als sich ergänzende Methoden am Beispiel der Großen Anakonda (Eunectes murinus). Ophidia 3 (1) - get paper here
  • BERNARDE, P.S., ALBUQUERQUE, S., BARROS, T.O. & TURCI, L.C.B. 2012. Serpentes do Estado de Rondônia, Brasil. Biota Neotrop. 12(3): 1-29 - get paper here
  • Bernarde, Paulo Sérgio;, Reginaldo Assêncio Machado & Luiz Carlos Batista Turci 2011. Herpetofauna da área do Igarapé Esperança na Reserva Extrativista Riozinho da Liberdade, Acre – Brasil. Biota Neotrop. 11 (3): 117-144 - get paper here
  • Boos, H.E.A. 2001. The snakes of Trinidad and Tobago. Texas A&M University Press, 270 pp.
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Calle, P. P.. Rivas J. A. Muñoz, M. C. Thorbjarnarson, J. B. Holmstrom, W. and W. B. Karesh. 2001. Infectious Disease serologic survey in free-ranging Venezuelan anacondas (Eunectes murinus). Journal of Zoo and Wildlife Medicine 32(3): 320-323
  • Calle, P., Rivas, J., Muñoz M., Thorbjarnarson, J., Dierenfeld, E. Holmstrom, W. Braselton, E. and Karesh W. 1994. Health assessment of free-ranging anacondas (Eunectes murinus) in Venezuela. Jour. Zoo. Wildl. Med. 25: 53-62
  • CATENAZZI, A., LEHR, E. & VON MAY, R. 2013. The amphibians and reptiles of Manu National Park and its buffer zone, Amazon basin and eastern slopes of the Andes, Peru. Biota Neotrop. 13(4): 269-283
  • Cole, Charles J.; Carol R. Townsend, Robert P. Reynolds, Ross D. MacCulloch, and Amy Lathrop 2013. Amphibians and reptiles of Guyana, South America: illustrated keys, annotated species accounts, and a biogeographic synopsis. Proceedings of the Biological Society of Washington 125 (4): 317-578; plates: 580-620 - get paper here
  • Dirksen, L. 2000. Zur Kenntnis der Anakonda-Arten (Serpentes: Boidae: Eunectes). II: Eunectes murinus(Linnaeus, 1758). Herpetofauna 22 (126): 23-34 - get paper here
  • Dirksen, L. 2012. Südamerikas „Big One“ – Auf Anakondasuche in der unberührten Wildnis von Guyana. Reptilia (Münster) 17 (93): 92-101 - get paper here
  • Dirksen, L. & W BÖHME 1998. Studien an Anakondas 1: Indizien für natürliche Bastardierung zwischen der Großen Anakonda (Eunectes murinus) und der Paraguay-Anakonda (Eunectes notaeus) in Bolivien, mit Anmerkungen zur Taxonomie der Gattung Eunectes (Reptilia: Squamata: Serpentes: Zool. Abh. Mus. Tierkd. Dresden, 50 (4) : 45-58.
  • Dirksen, Lutz 2002. Anakondas. Natur und Tier Verlag (Münster), 190 pp. - get paper here
  • Dirksen, Lutz 2007. Rekordhalter einer Großen Anakonda in Gefangenschaft. Ophidia 1 (2) - get paper here
  • Dirksen, Lutz and Wolfgang Böhme 1998. Studien an Anakondas 2: Zum taxonomischen Status von Eunectes murinus gigas (Latreillem 1801) (Serpentes: Boidae), mit neuen Ergebnissen zur Gattung Eunectes Wagler, 1830. Salamandra 34 (4): 359-374.
  • Dirksen, Lutz, and Wolfgang Böhme 2005. Studies on anacondas III. A reappraisal of Eunectes beniensis Dirksen, 2002, from Bolivia, and a key to the species of the genus Eunectes Wagler, 1830 (Serpentes: Boidae). Russ. J. Herpetol. 12 (3): 223-229. - get paper here
  • Duellman, W. E. 1978. The biology of an equatorial herpetofauna in Amazonian Ecuador. Misc. Publ. Univ. Kans. Mus. Nat. Hist. 65: 1-352 - get paper here
  • Duellman, W. E. 2005. Cusco Amazónico: The Lives of Amphibians and Reptiles in an Amazonian Rainforest. Comstock Pub Assoc.
  • Duellman, W.E., & Salas, A.W. 1991. Annotated checklist of the amphibians and reptiles of Cuzco Amazonico, Peru. Occas. Papers Mus. of Natur. Hist., Univ. of Kansas, Lawrence (143): 13 pp. - get paper here
  • Duméril, A. M. C. and G. Bibron. 1844. Erpetologie Générale ou Histoire Naturelle Complete des Reptiles. Vol.6. Libr. Encyclopédique Roret, Paris, 609 pp. - get paper here
  • Dunn,E.R. & Conant,R. 1936. Notes on anacondas, with descriptions of two new species. Proc. Acad. Nat. Sci. Philadelphia 88: 503-506 - get paper here
  • Fernandes-Ferreira, Hugo; Sanjay Veiga Mendonça, Rono Lima Cruz, Diva Maria Borges-Nojosa, and <br />Rômulo Romeu Nóbrega Alves 2013. Hunting of Herpetofauna in Montane, Coastal and Dryland Areas of Northeastern Brazil. Herp. Cons. Biol. 8 (3) - get paper here
  • Flindt, R. 2002. Biologie in Zahlen, 6. Aufl. Spektrum Akad. Verlag, Heidelberg, 296 pp.
  • Fraga R de, Stow AJ, Magnusson WE, Lima AP 2014. The Costs of Evaluating Species Densities and Composition of Snakes to Assess Development Impacts in Amazonia. PLoS ONE 9(8): e105453. doi:10.1371/journal.pone.0105453 - get paper here
  • Freitas, Marco Antonio de 2014. Squamate reptiles of the Atlantic Forest of northern Bahia, Brazil. Check List 10 (5): 1020-1030 - get paper here
  • Gay, Martin 1993. The green anaconda (Eunectes murinus). Reptilian 2 (1): 14-17
  • Gilmore, Raymond M.;Murphy, John C. 1993. On large anacondas, Eunectes murinus (Serpentes: Boidae), with special reference to the Dunn-Lamon record. Bull. Chicago Herp. Soc. 28 (9): 185-188 - get paper here
  • Gorzula, Stefan & Senaris, J. Celsa 1999. In: Contribution to the herpetofauna of the Venezuelan Guayana. I: a data base. Scientia Guaianae, Caracas, No. 8 [1998], 269+ pp.; ISBN 980-6020-48-0
  • Hamdan, B. & R. M. Lira-da-Silva 2012. The snakes of Bahia State, northeastern Brazil: species richness, composition and biogeographical notes. Salamandra 48 (1): 31-50 - get paper here
  • Hoser, R.T. 2012. A new subgenus of giant snakes (anaconda) from South America (Serpentes: Boidae). Australasian J. Herpetol. 12:36–39 - get paper here
  • INFANTE-RIVERO E., M. NATERA-MUMAW A. MARCANO 2008. Extension of the distribution of Eunectes murinus (Linnaeus, 1758) and Helicops angulatus (Linnaeus, 1758) in Venezuela, with notes on ophiophagia. Herpetotropicos 4 (1): 39 - get paper here
  • Jan, G. 1864. Iconographie générale des ophidiens. 6. Livraison. J.B. Bailière et Fils, Paris - get paper here
  • Lamonica, R.C.; ABRAHÃO-CHARLES, H.; LOGUERCIO, M. F. C. & ROCHA-BARBOSA, O. 2007. Growth, Shedding and Food Intake in Captive Eunectes murinus (Linnaeus, 1758) (Serpentes: Boidae). Int. J. Morphol. 25 (1): 103-108
  • Lillywhite, Harvey B. 2014. How Snakes Work: Structure, Function and Behavior of the World's Snakes. Oxford University Press, New York, 256 pp
  • Linnaeus, C. 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. Laurentii Salvii, Holmiæ. 10th Edition: 824 pp. - get paper here
  • Marques, R., M.S. Tinôco, D. Couto- Ferreira, C.P. Fazolato, H.C. Browne-Ribeiro, M.L.O. Travassos, M.A. Dias & J.V.L. Mota 2011. Reserva Imbassaí Restinga: inventory of snakes on the northern coast of Bahia, Brazil. Journal of Threatened Taxa 3 (11): 2184–2191 - get paper here
  • McDiarmid, R.W.; Campbell, J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. Herpetologists’ League, 511 pp.
  • Morato, S.A.A.; A.M.X. Lima; D.C.P. Staut; R.G. Faria; J.P. Souza-Alves; S.F. Gouveia; M.R.C. Scupino; R. Gomes; M.J. Silva. 2011. Amphibians and Reptiles of the Refúgio de Vida Silvestre Mata do Junco, municipality of Capela, state of Sergipe, northeastern Brazil. Check List 7 (6): 756-762 - get paper here
  • Morato, S.A.A.; Calixto, P.O.; Mendes, L.R.; Gomes, R.; Galatti, U.; Trein, F.L.; Oliveira, F.S.; Ferreira, G.N. 2014. Guia fotográfico de identificação da herpetofauna da Floresta Nacional de Saracá-Taquera, Estado do Pará. Curitiba: STCP Engenharia de Projetos Ltda.; Porto Trombetas: MRN – Mineração Rio do Norte S.A.; 213 p. - get paper here
  • Mößle, R. 2012. Haltung, Pflege und Zucht der Großen Anakonda (Eunectes murinus). Terraria Elaphe 2012 (4): 22-32
  • Natera-Mumaw, Marco; Luis Felipe Esqueda-González & Manuel Castelaín-Fernández 2015. Atlas Serpientes de Venezuela Santiago de Chile, Dimacofi Negocios Avanzados S.A., 456 pp.
  • O'Shea, Mark T. 1994. Eunectes murinus (northern green anaconda). Cannibalism. Herpetological Review 25 (3): 124 - get paper here
  • O'Shea, Mark, Steve Slater, Rebecca Scott, Sarah A. Smith, Katie McDonald, Bob Lawrence and Marie Kubiak. 2016. Eunectes murinus (Green Anaconda) Reproduction / Facultative parthenogenesis. Herpetological Review 47 (1): 73
  • Pérez-Santos,C. & Moreno, A.G. 1988. Ofidios de Colombia. Museo reegionale di Scienze Naturali, Torino, Monographie VI, 517 pp.
  • Raphael, B.L., Calle, P.P.; Karesh, W., Rivas, J. A., and D. Lawson. 1996. Technique for surgical implantation of transmitters in snakes. Proceedings of the Wildlife Disease Association 1996: 82
  • Reed, R.N. and G.H. Rodda 2009. Giant Constrictors: Biological and Management Profiles and an Establishment Risk Assessment for Nine Large Species of Pythons, Anacondas, and the Boa Constrictor. U.S. Geological Survey, xviii + 323 pp. - get paper here
  • RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here
  • Rivas, J. A. 1998. Predatory attack of a green anaconda (Eunectes murinus) on an adult human. Herpetological Natural History 6 (2): 157-159
  • Rivas, J. A. 2000. Life history of the green anacondas with emphasis on its conservation Biology. Unpublished Ph.D. dissertation at the University of Tennessee, Knoxville, USA
  • Rivas, J. A. 2001. Feasibility and efficiency of transmitter force-feeding in studying the reproductive biology of large snakes. Herpetological Natural History 8 (1): 93-95
  • Rivas, J. A. 2007. Conservation of Anacondas: How Tylenol conservation and macroeconomics threaten the Survival of the world's largest snake. Iguana 10-21
  • Rivas, J. A. & S. J. Corey. 2008. Eunectes murinus (green anaconda). Longevity. Herpetological Review 39 (4): 469 - get paper here
  • Rivas, J. A. and Burghardt G. M. 2001. Sexual size dimorphism in snakes: wearing the snake’s shoes. Animal Behaviour 62(3): F1-F6
  • Rivas, J. A. and R. Y. Owens. 2000. Eunectes murinus (green anaconda): cannibalism. Herpetological Review 31(1):44-45 - get paper here
  • Rivas, J. A., M. d. C. Muñoz, J. B. Thorbjarnarson, G. M. Burghardt, W. Holmstrom, and P. Calle. 2007. Natural History of the green anacondas (Eunectes murinus) in the Venezuelan llanos. pp: 128-138-415. In: R. W. Henderson, and R. Powell, (eds.), Biology of Boas, Pythons, and Related Taxa. Eagle Mountain Publishing Company, Eagle Mountain
  • Rivas, J. A., Muñoz M del C., Thorbjarnarson, J. B., Holmstrom, W. and Calle P. 1995. A safe method for handling large snakes in the field. Herpetological Review 26: 138-139 - get paper here
  • Rivas, J. A., Owens R. Y. and P. P. Calle. 2001. Eunectes murinus: Juvenile predation. Herpetological Review 32 (2): 107-108 - get paper here
  • Rivas, J. A., Thorbjarnarson, J. B., Owens, R. Y and M. C, Muñoz, 1999. Eunectes murinus: caiman predation. Herpetological Review 30 (2): 101 - get paper here
  • Rivas, J. A.; Ascanio R. & M. D Muñoz. 2008. What is the length of a snake?. Contemporary Herpetology 2008 (2): 1-3
  • Rivas, J. Muñoz, M, Burghardt, G. and J Thorbjarnarson 2007. Sexual size dimorphism and mating system of the Green Anaconda (Eunectes murinus). pp: 312-325 In: R. W. Henderson, R. and Powell, G. W. (eds.), Biology of Boas, Pythons, and Related Taxa. Eagle Mountain Publishing Company, Eagle Mountain
  • ROBERTSON, M.M.K. 1998. CÙro de SucurÌ. Reptiles Sep. 1998: 36-38
  • Ryerson, William G. and Sara Horwitz. 2014. Eunectes murinus (green anaconda) behavior / sidewinding. Herpetological Review 45 (2): 337-338
  • Santos-Costa, Maria Cristina dos; Gleomar Fabiano Maschio, Ana Lúcia da Costa Prudente 2015. Natural history of snakes from Floresta Nacional de Caxiuanã, eastern Amazonia, Brazil Herpetology Notes 8: 69-98 - get paper here
  • Schmidt, Dieter 2010. Vermehrung und Zucht von Riesenschlangen. Draco 11 (44): 4-17 - get paper here
  • Schreitmüller, W. 1924. Ueber Eunectes murinus L. (Nördliche Anakonda). Archiv für Naturgeschichte 90A (8): 125-130
  • Silva, F.M.; A.C. Menks; A.L.C. Prudente; J.C.L. Costa; A.E.M. Travassos; U. Galatti. 2011. Squamate Reptiles from municipality of Barcarena and surroundings, state of Pará, north of Brazil. Check List 7 (3): 220-226
  • Smith, H. M.; Gloyd, H. K. 1964. Nomenclatural notes on the snake names Scytale, Boa scytale, and Agkistrodon mokasen. Herpetologica 19 (4): 280-282 - get paper here
  • Starace, Fausto 1998. Guide des Serpents et Amphisbènes de Guyane. IBIS Rouge Editions, Guadeloupe, Guyane, 450 pp.
  • Strimple, Peter D. 1993. Overview of the natural history of the green anaconda (Eunectes murinus). Herpetological Natural History 1 (1): 25-35
  • Strimple, Peter D. 1997. Anacondas: High drama at the water's edge. Reptiles 5 (11): 48-67
  • Strimple,P. et al. 1997. On the status of the anaconda Eunectes barbouri Dunn & Conant. Journal of Herpetology 33 (4): 607-608 - get paper here
  • Switak, K.-H. 2014. Den mächtigen Amazonas entlang. Im herpetologischen Paradies. Reptilia (Münster) 19 (108): 76-85
  • Trutnau,L. 1982. Einige Bemerkungen über die neuweltlichen Riesenschlangen der Gattung Eunectes Wagler 1830. Herpetofauna 4 (17): 14-21 - get paper here
  • Vaz-Silva, W. et al. 2007. Herpetofauna, Espora Hydroelectric Power Plant, state of Goiás, Brazil. Check List 3 (4): 338-345 - get paper here
  • Wagler, Jean G. 1830. Natürliches System der Amphibien, mit vorangehender Classification der Säugetiere und Vögel. Ein Beitrag zur vergleichenden Zoologie. 1.0. Cotta, München, Stuttgart, and Tübingen, 354 pp.
  • Wied-Neuwied, M. 1824. Verzeichniss der Amphibien, welche im zweyten Bande der Naturgeschichte Brasiliens vom Prinz Max von Neuwied werden beschrieben werden. Isis von Oken 14: 661—673 [columns] - get paper here
 
External links  
Is it interesting? Share with others:


Please submit feedback about this entry to the curator