Question

Double headed snake is
A. Typhlos
B. Ptyas
C. Eryx
D. Bungarus

Answer 1

Hint: Having two heads is an abnormality of animals.

Complete answer:
A rare two-headed snake was found in a forest in New Jersey. Scientists have named it “Double Dave”. The name was coined after the environmentalist Dave Schneider and his colleague, he is also called Dave.
The condition of having more than one head happens when an embryo begins to split into identical twins but stops before fully dividing i.e. the same way that forms the conjoined twins.
In the given option A, “Typhlos” should be “Typhlops”. It is a group of blind snakes. This genus belongs to the family Typhlopidae.
In option B, Ptyas is one of several colubrid snake genera, also called “rat snakes”. This genus belongs to the family Colubridae.
In option C, Eryx is a genus of nonvenomous snakes. It is also known as sand boa or old world sand boa. It belongs to the family Boidae. The body of this snake is almost cylindrical. The head of this snake is not distinct from its neck. This snake looks like a double headed, because the shape of its tail is like its head.
In option D, Bungarus is a venomous snake, found in South and Southeast Asia. It belongs to the family Elapidae.
From the above information, it is clear that the Eryx or the sand boa is called a double headed snake.

So, the option C is the right answer.

Note: Eryx is called a double headed snake only for the shape of its tail which looks like its head. It does not contain two heads actually.