224 THE EEPTILES OF EGYPT. 
type may possibly have been received from Senegambia, where both C. sphenopsiformis 
and C. sepoides occur. M. Lataste, finding that it possessed only three digits 
anteriorly and four posteriorly, created a new genus for its reception, called 
Allodactylus. C. sepoides, however, has the fingers occasionally reduced to four and 
even to three, so no importance can be attached to the number of digits found in 
such degraded limbs as those of the members of this group. 
Synopsis of Egyptian Species o/Chalcides. 
A. Body round, elongate ; snout conical. 
Limbs pentadactyle ; nostril above suture of rostral and first labial . . . C. ocellatus. 
B. Body angular at sides, elongate; snout wedge-shaped. 
Limbs pentadactyle; fore limb occasionally tetra- or tridactyle. 
Ear with a fringe of pointed scales C. sepoides. 
Fore limb tridactyle ; hind limb tetradactyle. 
Ear without a fringe, more or less hidden by scales C. delislii. 
