水蟒

[ noun ]
large arboreal boa of tropical South America
<noun.animal>

Anaconda \An`a*con"da\, n. [Of Ceylonese origin?] (Zo["o]l.)
A large South American snake of the Boa family ({Eunectes
murinus}), which lives near rivers, and preys on birds and
small mammals. The name is also applied to a similar large
serpent ({Python tigris}) of Ceylon.