CORDYLUS GRISEUS. 
almost keeled scales ; the two lying over the external ear tubercular, com- 
pressed (see Plate XXX, fig. 8 a,) and prominent. The scales of the upper 
surface of neck, back, and sides disposed in transverse rows, about twenty- 
seven in number, each scale quadrangular in shape, and slightly keeled, the 
keel posteriorly slightly prolonged beyond the edge of the scale ; scales of 
the sides of the neck triangular, spinous, and pointed ; scales of the tail 
arranged in circular rings and each scale strongly carinated, the carina on 
the upper and lateral surfaces elongated posteriorly so as to form prominent 
spiny points. The fore legs and the upper surface of the hinder ones covered 
with triangular carinated scales, each of which terminates in a projecting 
point ; the lower surface of hinder legs coated with quadrangular smooth 
scales, and the hinder surface with small granular ones. Scales between rami 
of lower jaw subquadrangular, smooth, and arranged in transverse rows, those 
of under surface of neck subovate, and arranged in slightly arched rows. 
Plates of under surface of body in distinct transverse rows, twelve in each, 
the middle ones larger than the lateral ones. Pre-anal space covered with sub- 
quadrangular scales, the two centre ones of the hindermost row largest; im- 
mediately behind anus a band of small somewhat triangular scales, with two 
larger ones at each anterior angle, the inner one flat, the outer one tubercular, 
pointed, and projecting outwards. Feet small; toes long, slender, and armed 
with short, pointed, and curved nails. Femoral pores (Plate XXX. fig. 8 b.) 
eight, arranged in one line, and each situated in a prominent warty elevation. 
Full grown specimens of this species usually measure from six to seven 
inches. 
This species is very widely distributed over Southern Africa, and there is scarcely a stony 
knoll, a precipice, or an exposed rock which does not afford a habitat for one, two, or more in- 
dividuals. In common with others of the genus, it seeks concealment under stones and rocks, 
or in the chinks between them, and when once lodged in such positions it is not easily captured. 
The colours of no two individuals are quite the same, therefore naturalists, who do not rest their 
specific characters upon other details, will of necessity be forced to recognize mere varieties 
as distinct species. 
