90 REPTILES. 



shaped spot ; side of face and beneath yellow, with a dark streak 

 from the back of the eye. 



a. Stuffed. Adult. Port Natal, South Africa. From Dr. Andrew 



Smith's collection. 



b. Stuffed. Adult. S. Africa. From Mr. Warwick's collection. 



c. Stuffed. Adult; bad state. S.Africa? 



Heleionomus variegatus, Grat/, Zool. Misc. 43. 



d. Stuffed. Young. South Africa, Natal. From Dr. Krauss' 



collection. 



2. The Guinea Rock Snake, Hortulia Sebas. Coluber 

 Sebffi, Gmelin, S. N. iii. 1118 (from Seha, ii. ^ 19, /. Iv t. 27, /. 1, 

 t. 99, /. 2). Daud. Rept. vi. 238. Bum. ^ Bib. Erp. Gen. vi. 400, 

 t. 61. Col. speciosus, Bonat. E. M. 17 (from Seba, ii. t. 99, /. 2). 

 Boa hieroglyphica, Schneid. Amph. ii. 266. Merrem, Tent. 90. 

 B. coustrictor, var. f, Latr. Rept. iii. 135. Daud. Rept. v. 197. 

 Constrictor bivittatus, Wagler, Syst. 1, 68. Python bivittatus, Kuhl. 

 Beitr. 94. P. bivittatus, var., Schleyel, Phys. Serp. 408. Serpent, 

 Bosnian. Guinea, 395. Serpent Geant, Adanson, Seneg. 71, 152. 



The ten pairs of front lower labial shields very narrow, nar- 

 rower than the hinder ones ; internasal plates shorter than the front 

 nasal; two small prefrontals (sometimes united) on each side, a 

 frontal divided in two longitudinally ; three pairs of parietals, less 

 and less developed from the front backwards ; two supra-oculars on 

 each side ; rostral with two pits ; two front pairs of upper labials 

 pitted. 



a. In spirits. Young. W. Africa, Ashantee. From the Leyden 



Museum. 



" Python bivittatus, var., Schlegel.'^ 



b. In spirits. Young. W. Africa, Gold coast. From Mr. Kich's 



collection. 



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



of Derby. 



** Four pairs of front upper labials pitted ; supra-ocular plate sin- 

 gle ; lower labial shields broad, four. 



3. The Royal Rock Snake. Hortulia regia. Boa regia, 

 Shaw, Zool. iii. 347, t. 96 (from Seba, i. t. 62, /. 1, and t. 102.) 

 Merrem, 88. Fitz. N. S. Rept. 54. Python regius, Dum. ^ Bib. 

 Erp. Gen. vi. 413. Boa constrictor, var. d, Latr. Rept. iii. 134. 

 Daud. Rept. v. J 96. Enygrus (regius), Wagler, Syst. 167. Cen- 



