STENODACTYLUS PETRII. 45 
Stenodactylus petkii, Anderson. (Plate IV. fig. 7.) 
T)-apehis savignyi, Aud. var. (non Dum. & Bibr.) Descr. de l'figypte, i. 1829, p. 168; Suppl. Eept. 
pi. i. figs. 4. i, 4. 2, and 4. 3, sed non Suppl. Rept. pi. i. figs. 3. i, 3. 2, and 3. 3. 
Stenodactylus guttatus, part., Dum. & Bibr. iii. (1836), p. 434, pi. 34. no. 2. 
Stenodaclylus wilkinsonii {non Gray), Strauch, Mem. Ac. St. Petersb. (vii. ser.) xxxv. 1887, p. 67. 
Stenodactylus guttatus, part., Blgr. Trans. Zool. Soc. xiii. 1891, p. 107 ; ? Werner, Verh. zool.-bot. 
Ges. Wien, xliv. 1895, p. 76. 
Stenodactylus petrii, Anders. Herpet. Arabia & Egypt, 1896, p. 96. 
It? and 2?. Tel el Amarna. Professor W. M. Flinders Petrie, D.C.L. 
Head large, very distinct from the neck ; cheeks swollen ; snout short and 
moderately pointed, equalling the diameter of the eye ; nostril swollen, defined by the 
first labial and three nasals; 12 to 15 upper and 11 to 14 lower labials ; mental well 
developed, much broader than long. Eye very large ; ear moderate, slightly oval and 
vertical. Body covered with small, smooth, slightly convex scales, generally longer 
than broad, polygonal and somewhat smaller on the middle of the back than on the 
sides, where they are more rounded ; they are largest on the snout, hexagonal, very 
slightly convex and rugose ; scales on the limbs as large as those on the sides, tending 
to become imbricate and feebly keeled on the humeral and femoral regions ; scales on 
the under surface of the body slightly imbricate, obscurely obtusely keeled. Under 
surface of the digits with a longitudinal row of transverse tricarinate lamellae, more or 
less imbricate, with two rows of small, distinctly pointed scales external to it ; five or 
seven rows of scales on the upper surface of the third toe, about its middle ; the outer 
row of dorsal scales of each digit forms a well-marked but not very prominent fringe 
most developed on the hind foot, each scale being expanded at its base and curved 
distally into a sharp point, the entire fringe being slightly downwardly curved. 
Scales on the tail arranged in rings, largest on the upper surface, somewhat larger 
than the largest body-scales, longer than broad, and more or less keeled; those 
of the under surface much smaller and rounded. Limbs long and slender; fore 
limb when laid forwards reaches beyond the snout, and the hind limb in advance of 
the shoulder. Digits moderately long and slender. Tail contracted behind the 
basal swelling, rapidly tapered to a fine point, shorter than the body and head. 
No prgeanal pores, and no enlarged scales on the position occupied by these 
structures. 
General colour of the upper parts pale but rich fawn, with irregular dark brown 
markings, most pronounced on the head, feeble on the upper surface of the trunk, and 
tending to anastomose ; the most pronounced head-marking occurs behind the eye, 
and curving inwards tends to unite with its fellow of the opposite side ; an ill-defined 
