APPENDIX. 
9 
or 18. The colour of the upper and lateral parts of the head liver-brown, the latter freckled with pale 
verditer-blue ; the back and sides intermediate between greenish blue and clove-brown, and variegated 
with three longitudinal lines of verditer-blue, and with numerous small spots of the same colour between 
the lines ; anteriorly, these lines are prolonged forwards on the crown of the head, one along the mesial 
line and one on each side; posteriorly, they are lost about the base of the tail. Under surface of lower 
jaw and throat light verditer-blue, speckled with deep purplish brown ; belly plum-purple. Tail pale 
Dutch-orange, with a brown line above, in the mesial line; the colour in living specimens is probably 
bright red. Under surface of hinder extremities posteriorly, and the under parts of body and tail, 
wine-yellow. In some specimens, the colour of the back is a pale brownish red, and the tail clear 
sienna-yellow, with a narrow brown stripe above, in the mesial line. Length from nose to base oi 
tail, 2 inches 8 lines ; length of tail, 3 inches 8 lines. The dorsal scales in this species are smaller 
than in Platysaurxts Capensis, and in other respects, as well as in colour, it differs. Inhabits the 
neighbourhood of the Limpopo River, near the Tropic of Capricorn. 
GERRHOSAURUS VALLIDUS, Sunderall, n. s. 
Head posteriorly broad, anteriorly narrow and tapered ; sides vertical ; temples projecting' and 
convex. Body broad and depressed ; sides protuberant and arched. Tail depressed at the base, else- 
where cylindrical ; extremities short and rather robust. Lateral fold moderately developed. Rostral 
plate triangular ; nasal plates internally contiguous ; naso-rostral plate six-sided, the lateral sides very 
short ; fronto-nasal plates five-sided, internally contiguous. Frontal plate five-sided, the two anterior 
sides united in a point between fronto-nasal plates ; fronto-parietal plates five-sided ; interparietal plate 
rhomboidal ; parietal plates five sides contiguous at their hinder edge; all these plates rugose : naso-frenal 
narrow, lengthened vertically, and forms hinder edge of nostril. Plates of upper lip, exclusive of rostral 
plate, 8 ; plates on first half of lower lip, 5, the other half, towards angle of mouth, covered with small 
scales. Scales of the back, sides, and upper and lateral parts of tail quadrangular, each with five, six, or 
seven longitudinal keels, which converge towards the apex. Plates of the throat large, smooth, and six- 
sided, longest transversely ; plates of breast and belly square, smooth, and arranged in transverse rows, 
18 or 20 in the longest row of the latter; preanal plates three, the centre one narrowest behind. Plates 
on under surface of tail quadrangular, with a longitudinal ridge along* the centre of each, and in some 
one at each edge. Under eyelid covered with small scales. External ear-opening ovate, with a semi- 
circular operculum projecting from its anterior edge. The upper surface of the head, the back, and 
the tail, intermediate between umber-brown and liver-brown, and variegated with small spots or short 
streaks of a yellow or reddish yellow colour, one on each scale, on the back, arranged in longitudinal 
rows; sides of the body variegated umber-brown and yellowish brown. Under parts of lower jaw, 
throat, and breast, anteriorly light sienna-yellow, freckled with pale reddish brown ; hinder portion of 
breast and belly deep umber-brown, more or less freckled with yellowish brown. Extremities superiorly 
deep umber-brown, inferiorly ochre-yellow, mottled with umber-brown. Length from nose to base of 
tail, 7 inches; length of tail 12| inches; width at middle of body, 2 inches. 
Inhabits the interior of Southern Africa, towards the sources of the Garrep, or Orange River. 
SAUROPHIS SEPS, Fitz. Neue Classif. Rept. page 50. Saurophis Lacepcdii, Bum. et Bib. Erpet. 
Gener. tom. v. page 389. Lacerta tetradactyla, Lacep. Ann. Mus. d’Hist. Natur. tom. ii. page 
351, tab. 59, fig. 2. 
Inhabits the interior of Southern Africa, but specimens are seldom procured. 
D 
