1864.] DR. J. E. GRAY ON AFRICAN LIZARDS. 61 
nodactylus for another reason: the true Stenodactyli have the 
external appearance of the dgame, so much so that Geoffroy, on 
Savigny’s plate, calls it Z’ dgame ponctué; ard M. Audouin, in his 
‘ Explanation of Savigny’s Plates,’ referred it to the genus Trapelus, 
under the name of T.. savignii ; while the Senegal Lizard is a typical 
Gecko in all outward characters except the toes, so much so that 
when it was first seen it was thought to be an Hudlepharis, erro- 
neously said to come from Africa. 
I propose to call this genus 
PsILODACTYLUS, g. 0. 
Toes short, subcylindrical, tapering, covered with flat scales above, 
and, like the palms, with small rough granules beneath ; thumb like 
toes, but shorter; all clawed. Tail cylindrical, covered with flat 
scales, annularly plaited with a series of larger scales on the edge of 
the folds; beneath covered with subequal, flat, square scales. Pre- 
anal pores in a short angular line. Head depressed, covered with 
polygonal shields ; labial shields low, broad ; upper and lower rostral 
shields large, similar. Edge of the eyelids reflexed, expanded ; pupil 
large. Back with series of granular tubercles, those on the side 
formed of three subequal, larger scales. Chin, throat, and belly 
with smooth polygonal scales. 
This genus is very similar to Hublepharis (hardwickii) in external 
appearance and distribution of colour, but differs in the toes being 
very much shorter, thicker, and cylindrical and tapering, in the 
ends not being compressed and arched, but thick and cylindrical 
like the bases, and in the under surface of the toes being covered 
with small rough granules, like the under surface of the palm or soles 
of the feet. It differs also in the tubercles of the back being formed 
of groups of three scales; the central scales or tubercles on the 
middle of the back are larger than those on each side of it, but on 
the sides of the back the three scales are of nearly equal size. 
In Eublepharis the toes are compressed at the end, and have a 
broad band-like scale beneath, and the tubercles of the back and sides 
are all formed of a single large scale. 
PsILODACTYLUS CAUDICINCTUS. 
Stenodactylus caudicinctus, A. Duméril, 7. c. 
In spirits, pale whitish ; upper part of the head brown, edged with 
a black horseshoe-shaped ‘band behind ; cheek and side of the throat 
black, varied ; back with two very broad irregular-edged black cross 
bands ; tail dark, ringed. 
Hab. W. Africa; Old Calabar? 
EuPREPIS GULARIS, Sp. nov. 
Pale bronze-green brown (in spirit), with five narrow whitish 
streaks from the occiput continued on the base of the tail; crown 
of the head uniform brown; the central dorsal streak with a narrow 
black edge on each side, the two lateral streaks scarcely dark-edged, 
