OK. The family Viperidae is divided into two sub-families, viperinae and crotalinae. They break out like this:



Viperinae(True Vipers) contains the following genera:



Vipera

Bitis

Cerastes

Macrovipera

Daboia

Eristicophis





Crotalinae(Pit Vipers) contains the following genera:



Crotalus

Agkistrodon

Dienagkistrodon

Sistrurus

Trimeresurus

Lachesis

Bothrops

Bothriechis



and others....



So, for instance, if you see the name Vipera berus you know the animal belongs to the genus Vipera, it is one of the true vipers under the family Viperidae and sub-family Viperinae, and the species name is Vipera berus.



The other major snake families are:



Elapidae (Cobras, Kraits, Coral Snakes, Mambas, Taipans, etc.)



Colubridae (Garter Snakes, Rat Snakes, Indigo Snakes, Pine Snakes, King Snakes, Water Snakes, etc.) There are some venomous snakes in this family also and a few are dangerous to man. The venomous snakes in this family are all rear-fanged.



Hydrophidae (Sea Snakes)



Boidae (Boas and Pythons)





So you can see that there are literally hundreds of species involved in your question (22 in the genus Vipera alone), plus numerous sub-species. To answer your questions in the manner in which they were asked would be impossible without writing a book on Viperinae and Crotalinae.



To my knowledge, Vipera redi is an obsolete classification for one of the European vipers that ranges through Italy.



Is your field of interest involved with the homeopathic treatment of snakebite from these species, or homeopathic treatments for other ailments using the venoms of these species?

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