πŸ”Ž Boidae – Definition and Explanations


Infra orderAlethinophidia
– unclassified –Macrostomata
Gray, 1825

The Boidae (boids) form a family of constrictor snakes in which we find boas but also pythons. The constrictors kill their prey by constricting them in their rings, unlike many other snakes which use their venom (Venom is a poisonous substance that is a complex mixture of chemical substances…) (Boids are devoid of it).

Boas are mainly found in tropical areas as well as in Madagascar (Madagascar (Madagasikara en malgache), ou la RΓ©publique de Madagascar (Repoblikan’i …) and in the sud (South is a cardinal point, opposite to north.) of the pacific. Pythons meet in Africa (With an area of ​​30,221,532 km2 including the islands,…)in Australia (Australia (officially the Commonwealth of Australia) is a country of…) and in Asia (Asia is one of the five continents or part of the supercontinents Eurasia or Afro-Eurasia of the…), sand boas are found from eastern Africa to India. They are snakes living in a variety of environments, ranging from forest (A forest or a forest massif is a wooded expanse, relatively dense,…) rainy to deserts, passing through temperate zones. These reptiles are ovoviviparous, except for pythons which are oviparous and therefore lay eggs (some species even have behavior of monitoring spawning grounds). They are carnivorous and consume various mammals, birds and reptiles. They come in all sizes, from less than 1 meter for the smallest species to over 10 meters for the largest such as the Python reticulatus.


There are three subfamilies of Boidae: Boinae (Gray, 1825) – ou boasthe Erycina (Bonaparte, 1831) – or sand boas and the Pythoninae – or pythons.

Note: according to the classifications, the Pythoninae subfamily is considered as a family in its own right called Pythonidae.

Beret – good

These are snakes of size mean (The average is a statistical measure characterizing the elements of a set of…) which can be found mainly in America (America is a separate continent, to the west, from Asia and…) of the South, but also in Madagascar, the Solomon Islands and New Caledonia (New Caledonia is an archipelago in Oceania located in the Pacific Ocean…).

genera of this subfamily:

  • Acrantophis Linnaeus, 1758 β€” Madagascar land boa
  • Boa Linnaeus, 1758 β€” good
  • Candoia Gray, 1842
  • Corallus Daudin, 1803
  • Epicrates Wagler, 1830
  • Eunectes Wagler, 1830 β€” anaconda (Anacondas (Eunectes sp.) are non-venomous constricting aquatic snakes in the family…)
  • Sanzinia Linnaeus, 1758 β€” Madagascar tree boas

Some authors (Kluge, 1991 & 1993) have synonymized the genera Acrantophis et Sanzinia with gender Boa. These first two genera therefore do not appear in certain classifications.
Some authors also classify two genera, Exiliboa et Ungaliophisin this subfamily (Pough et al., 1998 for example). They are also placed in a separate family, the Tropidophiidae.

The discovery of fossil vertebrae belonging to a species (In the life sciences, the species (from the Latin species, “type”…) named prehistoric Titanoboa cerrejonensis was reported in February 2009.

Erycina – boas des sables

They are more modestly sized snakes, found in the southern United States as well as in Africa, Asia and southern Australia.Europe (Europe is a land region that can be considered a…).

Genera of this subfamily:

  • Calabaria Gray, 1849
  • Charina Gray, 1849
  • Eryx Daudin, 1803
  • Gongylophis Wagler, 1830

Genre Lichanura no longer exists, as it has been synonymized with the genus Charina (Kluge, 1993).
The status of Charina is still debated, and some authors propose to merge the genres Eryx et Gongylophis.

Pythons – pythons

Genera of this subfamily:

  • Antaresia Wells & Wellington, 1984
  • Apodora Kluge, 1993
  • Aspidites Peters, 1877
  • Bothrochilus Fitzinger, 1843
  • Leiopython Hubrecht, 1879
  • Liasis Gray, 1842
  • Morelia Gray, 1842
  • Python Daudin, 1803