Habitat: Guianas.
(19) E. spixii.—Scales in 15 rows; 201-219 ventrals; 22-29 subcaudals.
Colour: red, with 20-38 black rings disposed in threes; a black occipital collar, followed by a wide red space.
Total length, 1,400 millimetres; tail 70.
Habitat: Venezuela and Northern Brazil.
(20) E. frontalis.—Scales in 15 rows; 197-230 ventrals; 15-26 subcaudals. Tail ending very obtusely.
Colour: Body with black annuli disposed in threes, with red and yellow interspaces; head black, spotted with yellow or red.
Total length, 1,350 millimetres; tail 70.
Habitat: Southern Brazil, Uruguay, Paraguay, Argentina.
(21) E. marcgravii.—Scales in 15 rows; 210-240 ventrals; 23-42 subcaudals.