Constrictor in the United States.
Among the ophidians, which include many harmless species, are the boa-constrictor, rattlesnake, the dreaded Lachesis and the coral snake.
This is an enormous boa-constrictor of great length and weight, which drops upon his prey from the branch of a tree, or steals upon it in the thick grass.
Serpents, especially the boa-constrictor, are numerous.
One of the commonest species of the genus Boa is the Boa constrictor, which has a wide range from tropical Mexico to Brazil.
The Amazon region is frequented by the giboia (boa constrictor), and the central plateau by the sucurid (Eunectes murinus), both distinguished for their enormous size.
The ophidians are also very numerous, ranging from the comparatively harmless boa-constrictor to the deadly " palanca " or " fer de lance " (Lachesis lanceolatus) and rattlesnake (Crotalus), of which there are several species.
Squirrels, flying-squirrels, porcupines, civet-cats, rats, bats, flying-foxes and lizards are found in great variety; snakes of various kinds, from the boa-constrictor downward, are abundant, while the forests swarm with tree-leeches, and the marshes with horse-leeches and frogs.
Among the non-venomous species, the commonest are the boa-constrictor, the anaconda (Eunectes murinus) and the ih'.