Colour: Black annuli in sets of three, separated by reddish-brown interspaces; 12-17 sets; head black, with yellow blotches.
Total length, 730 millimetres; tail 70.
Habitat: Mexico and Guatemala.
(10) E. annellatus.—Scales in 15 rows; 200-211 ventrals; 30-45 subcaudals; 1 + 1 temporals.
Colour black, with 41-49 narrow white rings on the body, 4-7 on the tail; a white ring on the head.
Total length, 490 millimetres; tail 70.
Habitat: Eastern Peru.
(11) E. decoratus.—Scales in 15 rows; 196-213 ventrals: 29-37 subcaudals.
Colour red, with 15-16 sets of black annuli disposed in threes; head yellow, with end of snout black, and a black band across the eyes.
Total length, 625 millimetres.