Bothrocophias
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''Bothrocophias'' is a
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
pit vipers The Crotalinae, commonly known as pit vipers,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers, ...
in the
subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...
Crotalinae The Crotalinae, commonly known as pit vipers,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers ...
of the
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Viperidae Vipers are snakes in the family Viperidae, found in most parts of the world, except for Antarctica, Australia, Hawaii, Madagascar, New Zealand, Ireland, and various other isolated islands. They are venomous snake, venomous and have long (relat ...
, known by the common name toadheaded pit vipers. The genus is
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to South America.


Taxonomy

''Bothrocophias'' is a relatively recently identified genus that consists of four''Bothrocophias'' .
ITIS Catalogue of Life: 2010 Annual Checklist. Consulted: 2010-08-15.
to nine
species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
, most of which were traditionally placed in ''
Bothrops ''Bothrops'' is a genus of highly venomous pit vipers Endemism, endemic to the Neotropics.McDiarmid RW, Jonathan A. Campbell, Campbell JA, Touré T. 1999. ''Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1''. Herpetologist ...
''.


Oviparity

Recent evidence published by Campbell and Lamar (1989, 2004) suggests that '' Bothrocophias colombianus'' may lay eggs rather than give birth to live young. This would make it almost unique among New World pitvipers (but not Asian species). The only other American pitvipers known to lay eggs are the four species of bushmaster (''
Lachesis Lachesis ( ; ; from , 'to obtain by lot, by fate, or by the will of the gods'), in ancient Greek religion, was the middle of the Three Fates, or Moirai; the others were her sisters, Clotho and Atropos. Normally seen clothed in white, Laches ...
'').


Species

The following nine species are recognized as being valid. ''
Nota bene ( ; plural: ) is the Latin language, Latin phrase meaning ''note well''. In manuscripts, ''nota bene'' is abbreviated in upper-case as NB and N.B., and in lower-case as n.b. and nb; the editorial usages of ''nota bene'' and ''notate bene'' fi ...
'': A
binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, altho ...
in parentheses indicates that the species was originally described in a genus other than ''Bothrocophias''.


References


Further reading

* Campbell JA, Lamar WW (1989). ''The Venomous Reptiles of Latin America''. Ithaca, New York: Comstock Publishing Associates. 440 pp. . * Gutberlet RL, Campbell JA (2001). "Generic Recognition for a Neglected Lineage of South Amnerican Pitvipers (Squamata: Viperidae: Crotalinae), with the Description of a New Species from the Colombian Chocó ". ''American Museum Novitates'' (3316): 1–15. (''Bothrocophias'', new genus, p. 4). (''Bothrocophias myersi'', new species, p. 7). Snake genera {{snake-stub