SNAKES. 91 



chris regia, Gray, Griffith, A, K. ix. Python Bellii, Gray, Zool. 

 Misc. 44, young. 



Internasal plates nearly as long as the frontonasal ; four pre- 

 frontals on each side ; a frontal divided longitudinally into two, and 

 followed by small not symmetrical plates ; one large supra-orbital 

 plate on each side; rostral with two pits; four front upper pairs of 

 labials one-pitted ; front eight pairs of lower labial shields broad, 

 high, rest shallow. Black ; middle of the back with a series of ob- 

 long longitudinal white spots, largest in front : sides with a series of 

 very large white spots, with one or two oblong black spots on their 

 upper part : head black, a streak over the nostril and the lop of the 

 eyes, auother from the lower edge of the eye ; the lips, chin and be- 

 neath white. 



a. In spirits. Young. Western Africa, Gambia. From Mr. 



Rendal's collection. 



Python Bellii, Gray, Zool. Misc. 44. 

 h. In spirits. Half grown. W. Africa. Presented by Sir James 



Mc'Giigor. 

 c, d. In fluid. Adult. W. Africa, Gambia. Presented by the 



Earl of Derby. 

 e. In fluid. Adult. W. Africa, Gambia. Presented by the Earl 



of Derby. 

 /. In fluid. Young. W. Africa, Gambia. From Mr. Rendal's 



collection. 

 g. Stuffed. Young. W. Africa. 



Python Houtheynii, Daud. Rept. v. 254, viii, 384, only rest of 

 the description of Houttyns. Tjerri tjerri slang, Schneid. Amph. 

 ii. 219. 



4. LiAsis. 



Head scaly, with symmetrical shields on the muzzle to between 

 the eyes: vertical plate single: nostrils lateral, in a single shield, 

 with a groove behind : eyes lateral ; pupil oblong, erect : Upper and 

 lower labial shields pitted : scales smooth : subcaudal plates two- 

 rowed. 



Liasis, Gray, Zool. Misc. 44, 1842. Dum. ^' Bib. Erp. Gen. 

 vi. 431. Python sp., Daud. Rept. v. 26. 



* Rostral plate with tivo pits ; side of face with small scales. 



Simalia. 



1. The Liasis. Liasis amethyslinus, Gray, Zool. Misc. 44. 

 Dum. ^' Bib. Erp. Gen. vi. 432. Boa amethystiua, Schneid. Amph. 



