190 REPTILES. 



3. OXYRHOPUS FORMOSUS. 



Coluber formosus, Wied, Nov. Act. Cass. Leap. Carol. 1820, 

 t. 4, and Reise nach Brasilien, i. p. 257, ii- p. 75, and Abbildg. 

 zur Naturgesch. Bras. t. , and Beitr'dge zur Naturgesch. i. p. 381 . 

 Erythrolamprus formosus, Wagl. Syst. Amph. p. 187. Oxy- 

 rhopus formosus, Dum. §• Bibr. p. 1022. 



One anterior ocular, not reaching the vertical ; two temporal 

 shields in contact with oculars ; loreal elongate. Body with 

 black cross bands ; head and neck uniform red (in spirits, 

 whitish). 



a. Adult. South America. Muzzle black. 



b. Adult. South America. From the Zoological Society's Col- 



lection. Muzzle black. 



4. OXYRHOPUS PETOLARIUS. 



Coluber petolarius, Linn. Mus. Ad. Fried, t. 9. f. 2, and Syst. 

 Nat. i. p. 387 ; Daubent. Encycl. Meth. p. 660; Lacep. Hist. 

 Nat. Quadr. Serp. ii. p. 207 ; Bonnat. Ophiol. p. 48 ; Latr. 

 Rept. iv. p. 105 ; Daud. Rept. vi. p. 307. Coluber pethola, 

 Shaw, Zool. iii. p. 484 ; Merr. Tent. p. 109. Oxyrhopus peto- 

 larius, Wagl. Syst. Amph. p. 185. Lycodon petolarius, Schleg. 

 Ess. ii. p. 122. 



One anterior ocular, reaching the vertical; loreal elongate. 

 Body with alternate brown and white (in spirits) cross bands ; all 

 white (red) bands being equally broad. 



Var. A. Oxyrhopus multifasciatus, Dum. & Bibr. p. 1019. 

 Numerous red and black bands, all being equally broad ; belly 

 uniform yellowish. One temporal shield in contact with oculars. 



a. Adult. Caraccas. From M. Parzudaki's Collection. 



b. Half-grown. America. Presented by the College of Surgeons . 



Var. B. Oxyrhopus spadiceus, Dum. & Bibr. p. 1028. Like 

 former, but two temporal shields in contact with oculars. 



c. Young. Venezuela. From Mr. Dyson's Collection. 



Var. C. Oxyrhopus petolarius, Dum. & Bibr. p. 1033. Red 

 bands much narrower than the brown ones. Belly uniform. 

 Two temporal shields in contact with oculars. 



d. Adult. Demerara. From Mr. Snellgrove's Collection. 



e. Adult. Demerara. From Mr. Snellgrove's Collection. 



/. Adult. S. America. From the Zoological Society's Col- 

 lection. 



