GERRHOSAURUS TYPICUS. 
Reptilia. — Plate XXXYIII. Fig. 2. 
G. superne aurantio-brunneus, inforne griseo-albus, linea flava pone oculos incipiente et linea nigro in 
utroque latere marginata, ilia versus apicem, bis pone basin caudee desinentibus ; corporis lateribus 
nigro brunneo-umbratis et labeculis triangularibus variegatis, scuto occipitale quinquelaterale. 
Longitudo e naso ad basin caudse 4 unc. C lin. ; caudse 6 unc. C lin. 
Plkurotuciitts typicds, Smith, Mag. Zool. and Botany, vol. i. p. 1 43. 
Gerriiosaurus typicus, Dum. et Bib. Erpot. General, tom. v. p. 383. 
Colour. — The upper and lateral parts of the head, the back, and the upper 
and lateral parts of the tail deep orange-coloured brown, the two latter with 
two contiguous longitudinal stripes on each side, the external stripe the 
narrowest and pale cream-yellow, the internal deep liver-brown, fading at its 
inner edge into the tint of the centre of the back ; the light stripe commences 
immediately over and above the eye, and terminates near the point of the 
tail, though on the latter it is not so defined as on the former ; the dark one 
commences at the hind head, and is lost about the middle of the tail. The 
sides are variegated with several series of irregular light yellow spots, which 
are most distinctly defined between the fore and hinder legs, and in addition 
to these spots there are also others of a liver-coloured brown. The variegations 
on the sides of the tail are confusedly disposed, and in many places run 
into each other. The under parts and the inner surface of the extremities 
dull cream-yellow, inclined to greyish yellow. Eyes orange coloured brown. 
Form, &c. — Figure fusiform, the tail very long and slender towards the 
point. Head small, short, and tapered towards the nose, which is obtusely 
pointed. Body quadrangular, the angles rounded, and the back and sides 
but more especially the latter convex. Tail quadrangular towards its base, 
cylindrical towards the point. The naso-rostral plates sub-hemispherical, 
and the nostrils towards their centre ; superciliary plates four in number, 
the two central ones the largest, and externally all are edged with a row of 
narrow, oblong plates, which form the upper edge of the orbit; fronto-parietal 
plates subcordate, the apical portion directed outwards; parietal plates four- 
sided, the inner side of each much shorter than the outer, and is as well as the 
hinder angle of the fronto-parietal separated from its fellow of the opposite side 
by the intervention of a small five-sided occipital plate; internasal plate 
large and diamond-shaped. Temporal plates seven or eight, each many- 
sided, and of various sizes, the smallest ones towards the centre. Scales of 
upper lip six in number, the fourth, from rostral plate ; the longest, those of 
