136 REPTILES. 



longitudinal, and neck with a transverse band, forming together 

 a cross, 



a. Adult. Cape of Good Hope. Presented by Mr. Grasset. 



b. Nearly half-grown. Naraaqua. From Mr. Brandt's Collection. 



c. Adult. South Africa. 



d. Adult. South Africa. 



c,/. Half-grown and young. South Africa. 



g. Half-grown. Western Africa. From Mr. Raddon's Collection. 



A, i. Adult. South Africa. From Mr. Argent's Collection. 



k. Adult. South Africa. From Mr. Argent's Collection. 



I. Adult. South Africa. 



w. Adult. South Africa. From Mr. Warwick's Collection. 



n. Adult. South Africa. From the Haslar Collection. 



o. Adult : bad state. South Africa. 



p, q. Half-grown. South Africa. 



r. Young. South Africa. 



3. PSAMMOPHIS SIBILANS. 



Seba, ii. 58. 4. Coluber sibilans, Linn. Syst. Nat. p. 383 ; 

 Shaw, Zool. iii. p. 530; Merr. Tent. p. 114; Lacep. Quadr. 

 Ovip. et Serp. ii. p. 246 ; Bonnat. Ophiol. p. 56 ; Latr. Rept. iv. 

 p. 116. Coluber moniliger, Daud. Rept. vii. p. 69. Coluber 

 gemmatus, Shaw, Zool. iii. ]>. 539 ; Geojfroy, Descript. de VEy. 

 Hist. Nat. Rept. pi. 8. f. 4, and Savigny in the Supplement, pi. 4. 

 f. 5. Psammophis moniliger, Boie, Isis, 1827, p. 547 ; Wagl. 

 Syst. Amph. p. 189; Schleg. Ess. pi. 8. f. 4, 5, and Abbildg. 

 t. 43. f. 6-8; Nordmann, Voy. Russ. Merid, Demidoff, iii. pi. 4. 



f. 1 (young) ; Dum. ^ Bibr. vii. p. 891. 



Habit moderately slender ; coloration variable. 



A. Back brown, yellow-edged, with a yellow, very narrow ver- 

 tebral line ; sides olive, separated from belly by a yellow band. 



a. Adult. Cape of Good Hope. 



b. Half-grown. Cape of Good Hope. Presented by the Earl 



of Derby. 



c. Adult. Gambia. Presented by the Earl of Derby, 



d. e. Young. Angola. From Mr. Rich's Collection. 

 /. Adult. West Africa. From Mr. Rich's Collection. 



g. Adult. West Africa. From Mr. Eraser's Collection. 



h. Half-grown. West Africa. From Mr. Rich's Collection. 



i. Young. West Africa. From Mr. Eraser's Collection. 



k. Adult. Egypt. Presented by Mr. Burton. 



/. Adult: not good state. Egypt. Presented by J. Wilkinson, 



Esq. 

 m. Half-grown. Egypt. From Mr. Thornton's Collection. 



