SNAKES. 10/ 



6. Zamenis dahlii. 



Savigny, Descript. de VEg. Suppl. t. 4. f. 4. Tyria dahlii, Fitz. 

 Neue Class. Rept. p. 60; Bonap. Faun. Ital. pi. . Coluber 

 ocellatus, Menetries. Tyria naiadum, Eiehw. Faun. Caspio-Cau- 

 cas. t. 27. Psammophis dahlii, Schleg. Ess. pi. 8. f. 12, 13. Za- 

 menis dahlii, Duyn. Sf Bibr. vii. p. 6^J2. 



Habit verj' slender; above uniform greenish, without any 

 streaks on the crown ; on each side of the neck a series of large 

 brown, yellow-edged round spots. Scales smooth, in nineteen 

 rows ; upper labials eight, the fourth and fifth shields touching 

 the eye (sometimes the third is divided into two); occipital shields 

 behind broad, rounded. 



a. Adult. Dalmatia. From the Ley den Museum. 



b. Adult. Dalmatia. Presented by Dr. Heckel. 



c. Adult. Dalmatia. 



d. e. Adult, Xanthus. Presented by Sir Charles Fellows. 



f. Adult. Xanthus. From the Haslar Museum. 



g. Adult. North Africa. From Mr. Argent's Collection. 

 h. Adult. North Africa? greatly injured. 



i. Adult. North Africa ? From the Collection of the Zoological 

 Society. 



The three last specimens uniform greenish above, without con- 

 spicuous spots on the neck. 



8. CoRYPHODON, Dum. Sf Bibr. 



Body and tail generally elongate and compressed, sometimes 

 very slender, sometimes moderate ; head with flat crown, rounded 

 muzzle and moderate rostral shield. Loreal entire or divided ; 

 anterior oculars one or two, posterior two or three. Scales elon- 

 gate, rhomboid, in fourteen to nineteen rows (in one species in 

 twenty-three). Maxillary teeth gradually larger and longer be- 

 hind, smooth. East Indies ; America ; Africa. 



Coryphodon, Dum. Sf Bibr. vii. p. 178. Natrix, sp.. Coluber, 

 sp., auct. prior. 



1. Coryphodon pantherinus. 



Merrem, Beitr. ii. t. 11. Pantherine, Daud. Hist. d. Rept. vi. 

 p. 318. Coluber compressus, Hermann, Observ. Zool. p. 285 ; 

 Merr. Tent. pp. 102 & 107. Coluber capistratus, Licht. Catal. 

 p. 104. Natrix scurrula, Spix, Serp. Brasil. pi. 8. Coluber 

 lichtensteinii, IVied, Nova Act. xii. pi. 46, and Abbildg. pi. 15. 

 f. 1 ; Beitr. p. 305 ; Wagler, Descript. et Icones, fasc. i. t. 4 ; 

 Boie, Isis, 1827, p. 537; Schleg. Ess. t. 5. f. 13, 14. Corypho- 

 don pantherinus, Dum. Sf Bibr. vii. p. 181. 



