World Library  
Flag as Inappropriate
Email this Article

Colubrids

Article Id: WHEBN0006250740
Reproduction Date:

Title: Colubrids  
Author: World Heritage Encyclopedia
Language: English
Subject: Snake scales, List of reptiles of Florida
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Colubrids

Colubridae
Temporal range: Oligocene to Recent
Caspian whipsnake, Coluber caspius
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Oppel, 1811

The Colubridae (from Latin coluber, snake) are a family of snakes. With 304 genera and 1,938 species, Colubridae is the largest snake family, and includes about two-thirds of all current snake species. The earliest species of the family date back to the Oligocene epoch. Colubrid species are found on every continent except Antarctica.[1]

Description

While most colubrids are nonvenomous (or have venom that is not known to be harmful to humans) and are mostly harmless, a few groups, such as genus Boiga, can produce medically significant bites, while the boomslang, the twig snakes and the Asian genus Rhabdophis have caused human fatalities.[1][2]

Some of the colubrids are described as opisthoglyphous, meaning they have elongated, grooved teeth located in the back of the upper jaw. The opisthoglyphous dentition appears at least twice in the history of snakes.[2] These are unlike those of vipers and elapids, which are located in the front.[1][2]

Classification

The Colubridae are not a natural group, as many are more closely related to other groups, such as elapids, than to each other.[3] This family has classically been a garbage bin taxon for snakes that do not fit elsewhere.[4] It is hoped that ongoing research will sort out the relations within this group.

Subfamily Boodontinae

Subfamily Calamariinae

Subfamily Colubrinae - nearly 100 genera

Subfamily Dipsadinae

  • Adelphicos
  • Amastridium
  • Atractus
  • Calamodontophis (tentatively placed here)
  • Carphophis (tentatively placed here)
  • Chersodromus
  • Coniophanes
  • Contia (tentatively placed here)
  • Crisantophis (tentatively placed here)
  • Cryophis
  • Diadophis (tentatively placed here)
  • Diaphorolepsis (tentatively placed here)
  • Dipsas
  • Echinanthera (tentatively placed here)
  • Emmochliophis (tentatively placed here)
  • Enuliophis (tentatively placed here)
  • Enulius (tentatively placed here)
  • Eridiphas
  • Geophis
  • Gomesophis (tentatively placed here)
  • Hydromorphus (tentatively placed here)
  • Hypsiglena
  • Imantodes
  • Leptodeira
  • Ninia
  • Nothopsis (tentatively placed here)
  • Pliocercus
  • Pseudoleptodeira
  • Pseudotomodon (tentatively placed here)
  • Ptychophis (tentatively placed here)
  • Rhadinaea
  • Rhadinophanes (tentatively placed here)
  • Sibon
  • Sibynomorphus
  • Synophis (tentatively placed here)
  • Tachymenis (tentatively placed here)
  • Taeniophallus (tentatively placed here)
  • Tantalophis (tentatively placed here)
  • Thamnodynastes (tentatively placed here)
  • Tomodon (tentatively placed here)
  • Tretanorhinus
  • Trimetopon
  • Tropidodipsas
  • Urotheca
  • Xenopholis (tentatively placed here)

Subfamily Homalopsinae - about 10 genera

Subfamily Natricinae - about 30 genera

Subfamily Pareatinae - three genera

Subfamily Psammophiinae

  • Hemirhagerrhis
  • Malpolon
  • Mimophis
  • Psammophis
  • Psammophylax
  • Rhamphiophis

Subfamily Pseudoxenodontinae

  • Plagiopholis
  • Pseudoxenodon

Subfamily Pseudoxyrhophiinae - about 20 genera

Subfamily Xenodermatinae

Subfamily Xenodontinae - some 55-60 genera

incertae sedis

References

External links

  • Template:Sister-inline
  • Reptarium.cz Reptile Database. Accessed 23 January 2009.
  • Psammophids at Life is Short but Snakes are Long
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.