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Eunectes deschauenseei
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Boidae
Genus: Eunectes
Species: E. deschauenseei
Binomial name
Eunectes deschauenseei
Dunn & Conant, 1936[1]
Dark spotted anaconda range.png
Dark spotted anaconda natural range
Common names: dark-spotted anaconda,[2] De Schauensee's anaconda.[3]

Eunectes deschauenseei is a nonvenomous boa species endemic to northeastern South America. No subspecies are currently recognized.[4]



The specific name, deschauenseei, is in honor of American ornithologist Rodolphe Meyer de Schauensee,[5] who donated a specimen to the Philadelphia Zoo in 1924. The type locality given is "probably collected on the island of Marajo at the mouth of the Amazon".[1]

When this snake, commonly known as the "dark-spotted anaconda", was first found, it was given to the Philadelphia Zoo.[citation needed]

Distribution and habitatEdit

E. deschauenseei is found in South America in northeastern Brazil, Guyana and coastal French Guiana. E. deschauenseei is both semi-aquatic and terrestrial. It is usually found in swampy, seasonally flooded freshwater areas.


Mating in E. deschauenseei probably takes place at the end of the dry season, around June to August. Sexually mature females can have between three and 26 neonates in a litter, with sizes ranging between 32 and 60 cm (13 and 24 in).

Pizzatto and Marques (2007) examined 5 gravid females and found the litter size ranged from 3 to 27 (x=10.6) and examined the embryos, they estimate that the young are about 0.49 m (19 in) at birth.

See alsoEdit


  1. ^ a b McDiarmid RW, Campbell JA, Touré T (1999). Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  2. ^ Eunectes deschauenseei at the Reptile Database. Accessed 1 December 2008.
  3. ^ Amazon Anaconda at Mark O'Shea. Accessed 1 December 2008.
  4. ^ "Eunectes deschauenseei". Integrated Taxonomic Information System. Retrieved 30 November 2008. 
  5. ^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press.xiii + 296 pp. ISBN 978-1-4214-0135-5. (Eunectes deschauenseei, p. 70).

Further readingEdit

  • Dirksen L, Henderson RW (2002). "Eunectes deschauenseei ". Catalogue of American Amphibians and Reptiles 755.1–755.3.
  • Dirksen L (2002). Anakondas. Monographische Revision der Gattung Eunectes (Wagler, 1830). Münster: Natur und Tier-Verlag. 187 pp. ISBN 3-931587-43-6. (in German).
  • Dirksen L (1999). "Zur Kenntnis der Anakonda-Arten (Serpentes: Boidae: Eunectes ). I. Eunectes deschauenseei Dunn & Conant, 1936 ". Herpetofauna, Weinstadt 21 (122): 12-21. (in German).
  • Dunn ER, Conant R (1936). "Notes on anacondas, with descriptions of two new species". Proc. Acad. Nat. Sci. Philadelphia 88: 503-506. (Eunectes deschauenseei, new species).

External linksEdit