THE rii'IXCirAL SI'KCIKS OF I'UISOXOL'S SXAKES 107 



Colour : Body with black anmili in G — 10 sets of three, separated 

 by broad red interspaces, the middle annulus usually wider ; snout 

 yellow, the end usually black ; back of head red. 



Total length, l,li>0 millimetres ; tail 100. 



Habitat : Tropical South America. 



(22) E. I emni scat us. —Scales in 15 rows ; 241 — 262 ventrals ; 

 30 — 39 subcaudals. 



Colour: Body with II — 14 sets of black annuli disposed in 

 threes, separated by red interspaces ; head yellow ; end of snout 

 and a band across the middle of the head black. 



Total length, 1,000 millimetres ; tail 80. 



Habitat : Guianas, Brazil. 



(23) E. JjI if or mis. —Scales in 15 rows: 290—308 ventrals; 

 35 — 45 subcaudals. 



Colour : Body with black annuli disposed in threes, with red 

 interspaces ; head yellow ; end of snout black : a black band across 

 the eyes. 



Total length, 575 millimetres; tail 40. 



Habitat : Amazons, Colombia. 



(24) E. mipartitus. — Scales in 15 rows; 210 — 27s ventrals; 

 24 — 34 subcaudals. 



Colour black, with 40 — ()8 narrow white annuli ; head black to 

 between the eyes, elsewhere yellow. 



Total length, 610 millimetres ; tail 50. 



Habitat : Central America and Tropical South America. 



(25) E. fraseri. — Scales in 15 rows ; 303 ventrals ; 25 sub- 

 caudals. 



Colour black, with 75 narrow whitish rings with broken out- 

 lines ; head black in front, yellow behind. 

 Total length, 780 millimetres ; tail 40. 

 Habitat: Ecuador. 



(26) E.mentalis. — Scales in 15 rows; 255 — 268 ventrals ; 30 — 31 

 subcaudals. 



Body black, with 58 — 70 narrow white annuli, which become 



