S5 



2. Elaps alternans, Dum. & Bibr. 

 Elaps alternans, Dum. & Bibr. p. 1211. 



3. Elaps mipartitus, Dum. & Bibr. 



Elaps mipartitus, Dum. & Bibr. p. 1220. — New Granada. 

 Elaps decussatus, Dum. & Bibr. p. 1221, appears to belong to 

 the same species. 



4. Elaps surinamensis, Cuv. 



Elaps surinamensis, Cuv. Regne Anim. ; Schleg. Ess. p. 445 and 

 Abbild.taf.46. f.9. 

 Surinam. 



5. Elaps lemniscatus (L.). 



Coluber lemniscatus, L. Mus. Ad. Frid. i. p. 34 ; Schleg. Ess 

 p. 444, pi. 14. f. 6, 7. 



Brazil, Surinam, Caraccas, Columbia, Trinidad. 



Varieties of this species are— 



a. Elaps marcgravii, Dum. & Bibr. p. 1209. 



b. Elaps frontalis, Dum. & Bibr. p. 1223, figured by Guichenot in 

 Casteln. Anim. nouv. ou rares de l'Amer. du Sud, p. 71, pi. 14. 

 This is the Snake first described by Marcgrave, Hist. Nat. Bras, vi 

 p. 240. 



6. Elaps fulvus (L.). 



Coluber fulvus, L. Syst. Nat. i. p. 381. 



Elaps fulvus, Holbr. N. Amer. Herpetol. hi. p. 49, pi. 10 ; Dum. 

 Bibr. p. 1215. 



Southern States of North America, through Central America, to 

 Venezuela. 



Variety of this species is 



Elaps tristis, Baird and Girard, Catal. p. 23. 



7. Elaps epistema, Dum. & Bibr. 



Elaps epistema, Dum. & Bibr. p. 1222. 

 Mexico. 



8. Elaps bipunctiger, Dum. & Bibr. 

 Elaps bipunctiger, Dum. & Bibr. p. 1227. 



9. Elaps decoratus, n. sp. (PL XVIII. fig. A.) 



Body encircled by black rings, always three together, the middle 

 one broadest. Muzzle and a cross-band between the eyes black. Ver- 

 tical shield broad, five-sided, with a front side broader than the 

 lateral ones, and behind with an obtuse or a right angle. 



This species is allied to Elaps lemniscatus : it differs somewhat in 

 the arrangement of the black rings ; but the reason why this species 

 must be separated, is the form of the vertical shield, which in 

 E. lemniscatus is much narrower, the front side being snorter than 



