Colour: Seven sets of black annuli disposed in threes, median annulus the broadest; head black, with a yellow transverse band behind the eyes.
Total length, 550 millimetres; tail 50.
Habitat: Brazil.
(5) E. langsdorffii.—Ventrals 204-225; subcaudals 37-54; 1 + 1 temporals.
Colour dark brown, with 63 transverse series of cream-coloured spots, each occupying one scale; belly yellow, with red cross-bands.
Total length, 300 millimetres.
Habitat: Upper Amazons.
(6) E. buckleyi.—203-211 ventrals; 39-43 subcaudals; 1 + 2 temporals.
Colour orange, with 48-60 black annuli edged with small yellow spots; head black; temples yellow.
Total length, 505 millimetres; tail 70.