Bothrops pirajai

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Bothrops pirajai
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Bothrops
Species: B. pirajai
Binomial name
Bothrops pirajai
Amaral, 1923
Common names: Piraja's lancehead.[2]

Bothrops pirajai is a venomous pitviper species endemic to Brazil. No subspecies are currently recognized.[3]


The specific name, pirajai, is in honor of Brazilian parasitologist Pirajá da Silva, who in 1923 was director of the Bahia branch of the Instituto Butantan.[4][5]


The maximum total length recorded for this species is 137 cm (54 in). It is stocky and terrestrial.[2]

Geographic range[edit]

Found in Brazil in central and southern Bahia. Possibly, it may also occur in Minas Gerais. The type locality given is "Ilheos, Bahia, Brazil".[1]

Conservation status[edit]

This species is classified as vulnerable (VU) on the IUCN Red List for the following criteria: A1c (v2.3, 1994).[6] This means that it is not Critically Endangered or Endangered, but is facing a high risk of extinction in the wild in the medium-term future due to population reduction in the form of an observed, estimated, inferred or suspected reduction of at least 20% over the last 10 years or three generations, whichever is the longer, based on a decline in area of occupancy, extent of occurrence and/or quality of habitat. The population trend is down. Year assessed: 2000.[7]

The rainforest inhabited by this species is unfortunately decreasing in area and quality, while becoming increasingly fragmented through deforestation. The areas that have been cleared are mainly being used for cocoa plantations.[6]

See also[edit]


  1. ^ a b McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  2. ^ a b Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.
  3. ^ "Bothrops pirajai". Integrated Taxonomic Information System. Retrieved 3 August 2007. 
  4. ^ Amaral. 1923. p. 100.
  5. ^ Beolens B, Watkins M, Grayson M (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Bothrops pirajai, p. 208).
  6. ^ a b Bothrops pirajai at the IUCN Red List. Accessed 2 September 2007.
  7. ^ 1994 Categories & Criteria (version 2.3) at the IUCN Red List. Accessed 2 September 2007.

Further reading[edit]

  • Amaral, A. 1923. New Genera and Species of Snakes. Proceedings of the New England Zoölogical Club 8: 85-105. ("Bothrops pirajai sp. nov.", pp. 99–100.)

External links[edit]