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. 
ce. Stuffed. Adult; bad state. S. Africa? 
Heleionomus variegatus, Gray, Zool. Misc. 43. 
d. Stuffed. Young. South Africa, Natal. From Dr. Krauss’ 
collection. 
2. The Guinea Rock Snake. Hortulia Sebe. Coluber 
Sebe, Gmelin, S. N. iii. 1118 (from Seba, ii. t. 19, f. 1, t. 27, f. 1, 
t. 99, f. 2). Daud. Rept. vi. 238. Dum. § Bib. Erp. Gen. vi. 400, 
t.61. Col. speciosus, Bonat. EF. M.17 (from Seba, ii. t. 99, f. 2). 
Boa hieroglyphica, Schneid. Amph. ii. 266. Merrem, Tent. 90. 
B. constrictor, var. f, Latr. Rept. iii. 135. Daud. Rept. v. 197. 
Constrictor bivittatus, Wagler, Syst. 1, 68. Python bivittatus, Kuhl. 
Beitr. 94. P. bivittatus, var., Schlegel, Phys. Serp. 408. Serpent, 
Bosman. 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. Inspirits. Young. W. Africa, Gold coast. From Mr. Rich's 
collection. 
e. 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 Royat Rock Snake. Hortulia regia. Boa regia, 
Shaw, Zool. iii. 347, t. 96 (from Seba, i. t. 62, f. 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. 196. Enygrus (regius), Wagler, Syst. 167. Cen- 
