Tilt: EARED MMGALOCBILM. 



|. ut tlif -kin <>f tin- t liroat i- 1<NK*> aiid plaited into a single crow fold toward* its base. 

 T!i.- Ixxly is r.nit.-i tl.it t. 'H.-d. :ni.l there is a longitudinal plait on each side. The tail is round 



und roiiir.il. 



IN the restricted genus AGAXA a word, by the way, which is not derived fntni any 



alaBa)aalaavna but is sitii] : ' ; ; : " "< -^ flMMtti ie( JiMaJoi HI.' - -i ;.*,. 

 the back are tl.it und keeled, and the timd iuid fourth toes are nearly equal in I'-n-ili. Tin- 

 throat in marked with one longitudinal fold, and one, or xoiiii-tiin.- two ininsver*e folds towards 

 its base. Upon the sides of the neck und near the ears are curious groups of spiny scales. 

 Tli.-iv uaslight crest along the buck, the body is nither ll;itt. -u.-d. : ,nd tin tail is long, tapering, 

 and is covered with whorls of U.ldly projecting scales. 



In a very old work on iuitur.il history, it is stated that the Lizards which have their tails 

 thus armed with sharp, spiny scales, make use of th.-m in a rath.-r finuular la-himi. They 

 f.-.-d. MOOtdlBg h>ttHNU ^ :.:-. 01 BBttk nd Otttl ttfaMlft, fjad Jadgbg ttMl ! i-iu 1 h.-n 

 small sue they cannot bring an ox or a cow home after they have killt-d it, tln-y juiup on ito 

 back, cling tightly there with their feet, and by judicious lashing of the sharp tail, guide the 

 animal to their home, where they give the fatal bite. 



TIIK SPINOSE AOAXA (Agama colonorurn) is a well-known example of this genus, residing 

 in Northern Africa, and plentiful in Kgypt. The color of this reptile is brown ; tin* scales on 

 the sides of th- n.-<-k are very long and sharp, and those of th*- l>:ick are broad, boldly keeled, 

 and sharply pointed, so that the creature presents rather a formidable appearance. The tail 

 is long and powerful. 



THERE is a very remarkable Lizard bHoiunm: t< this family, called the EARED MKOALO- 

 HILE, or sometimes, though wrongly, the EAKKO AOAMA. 



This carious creature is found in Hussia. In this genus, containing, as far as is at present 

 known, only one species, the head Is Hat and round, the eyes large, and the ears sunken and 



