SNAKES. 43 



1. LlOPHIS BICINCTUS. 



Coluber bicinctus, Hermann, Observat. Zoologicce, p. 276. 

 Coronella bicincta, Boie, Isis, 182/, p. 539. Xenodon bicinctus, 

 Schleg. Ess. ii. p. 95. Liophis bicinctus, Dum. 8f Bihr. vii. 

 p. 716. 



Lower edge of orbit completely surrounded by small, scale- 

 like shields ; scales in nineteen or twenty-one rows. Brownish 

 red, with pairs of black rings, each pair in front and behind white- 

 edged. 



a. Large specimen. Deraerara. 



b. Half-grown. South America. From the Zoological Society's 



Collection. 



2. Liophis cobella. 



Coluber cobella, Linn. Miis. Ad. Fried, p. 24. Cerastes cobella, 

 Laurenti, Syst. Amph. p. 82 ; Lacep. Hist, des Serp. ii. p. 248 ; 

 Bonnat. Encycl. Ophiol. pi. 41. f. 2. Coluber cenchrus and C. 

 cobella, Merrem, Beitr. zur Naturg. der Amph. fasc. 1. pi. 4 ; Ten- 

 tamen, pp. 97 & 102; Boddaert, Nov. Act. Acad. Ccbs. vii. p. 19 ; 

 Donndorff, Zool. Beitr. p. 202. Elaps cobella, Schneider, Hist. 

 Nat. ii. p. 296; Latr. Rept. iv. p. 171 ; Shaw, Gen. Zool. iii. 

 p. 493; Daud. Hist. Nat. Rept. vii. p. 139. Liophis cobella, 

 IVagl. Syst. der Amphib. p. 138, Coronella cobella, Schleg. Ess. 

 ii. p. 62. pi. 1. f. 4, 5; Dum. 4- Bibr. vii. p. 698. 



Head moderate ; above blackish ash, with more or less white, 

 linear, C-like spots. 



a. Adult. Brazil. 



b. Adult : bleached. Brazil. From Dr. Gardiner's Collection. 



c. Half-grown : injured. Para. Presented by R. Graham, Esq. 



d. Half-grown. Para. From Mr. Stevens's Collection. 



e. Half-grown : not good state. Para. From Mr. Stevens's 



Collection. 



/. Adult. Cayenne. Presented by H. Cadogan Rothery, Esq. 



g-o. Adult and half-grown. Demerara. From Mr. Snellgrove's 

 Collection. 



p. Half-gi'own. Demerara. From Mr. Snellgrove's Collection. 



q-t. Half-grown and young. Demerara. From Mr. Snellgrove's 

 Collection. 



u-v, w-y, z~x. Adult. Berbice. 



/3. Half-grown. Berbice. 



y. Young. Berbice. Presented by Lady Essex. 



d. Many specimens. South America. From Mr. Mather's Col- 

 lection. 



