14 
APPENDIX. 
AGAMA ATRA, Baud. Bum. et Bib. Erpet. Gener. tom. iv. page 493. Merrem. Syst. Ampin 
page 54. Cm. Reg. Animal, tom. ii. page 36. Agama subhispidus, lump. Isis. 1827, page 
616. Agama subspinosa, Gray, Ann. Pbilosopb. tom. ii. page 214. 
Specimens of this species are met witli in abundance in most parts of Southern Africa, especially 
where large stones or rocky hills occur; and are seen basking in the sun, either flat on their belly or 
raised on their fore-legs. 
AGAMA ACULEATA, Merrem. Syst. Amph. page 58. Bum. et Bib. Erpet. Gen. tom. iv. 
page 499. 
Inhabits rocky localities in most parts of Southern Africa. It abounds in the rocky mountains 
of Little Namaqualand. 
AGAMA SPINOSA, Bum. et Bib. Erpet. Gener. tom. iv. page 502. Agama orbicularis, Baud. 
Hist. Rept. tom. iii. p. 406. Agama aculeata, Cuv. Reg. Animal, tom. n. page 36. Agama 
hispida, Gray, Cat. of Lizards, British Museum, page 257. 
This species occurs in most parts of Southern Africa, but most abundantly in sandy districts 
which are sparingly coated with grass or dwarf shrubs. 
AGAMA ATRICOLLIS, Smith. 
Head large, subcordiform ; hinder angle of jaws bulged. Eyebrows prominent and arched; 
the upper surface of the head flat and sloped to the- nose. Body bulky; sides very protuberant and 
much arched. Tail nearly cylindrical and tapered to the point, which is very slender. Extremities 
moderately long and rather robust; toes long, moderately strong, slightly compressed, and armed with 
compressed, curved, and pointed claws. Nostrils circular, placed in the centre of a rather large 
ovate convex scale, in the line of the rostral canthus. External ear-opening large, semilunar, the 
anterior edge with three or four triangular projecting scales towards the lower extremity of the orifice. 
Scales on the upper surface of the head convex or subtubercular, those between the eyes largest. 
Scales of the back and sides generally small, subtriangular, and carinated; but amongst them are 
others much larger, more convex, and more strongly carinated. Along the vertebral line these are 
numerous, and arranged in two or three irregular longitudinal rows : on the sides they are less 
abundant, and form more or less complete transverse lines. Scales of the tail strongly carinate . n 
the upper surface of the neck, and below and behind the ears, a few spinous scales are scattered among 
the small scales. Scales of the breast and belly triangular, and more or less keeled, many of the keels 
prolonged into fine acute spines. One or two rows of convex preanal pores in the male, about ten in 
each row. Colour of the upper surface of the head and tail, greenish brown, or yellowish brown the 
latter towards the point with narrow rings of liver-brown; ground colour of back and sides of >o< y 
intermediate between oil-green and yellowish brown, freely veined with liver-brown, and speckled with 
ochre or sienna yellow. Sides of the neck with a large trifid black mark, one of the branches r nee et 
upwards and forwards towards the occiput. Under surface of head greenish blue or straw^yeflow 
veined with greenish blue; under part of neck, breast, and belly, sienna-yellow, faintly tinted with 
green, and in the female speckled with small bluish green spots; under surface of tail the same colour 
as the upper, only clearer. Length from nose to base of tail 6 inches ; length of tail b me les. 
Inhabits the interior of Southern Africa ; also the country neai Poi t. Nat. 
