LIZARDS. 131 



** Head depressed. Rostral regularlj/ rounded in fronts convex 

 above and belon\ with a central^ oblony, erect rostral. The na- 

 sal, frontonasal and eye shields moderate, the rest of the head co- 

 vered with 3 series of 6-sided shields. 



3. Typhlinalis. Head rounded. Rostral ohlong, convex, ra- 



ther swollen, broad. Nasal rather large, convex. Nostril 

 inferior, with a slit to the lower edge of the plate. Snprana- 

 sal none. Eyes none. Temple-shield elongate. Crown with 

 3 series of 6-sided shields. 



4. Amlios. Head rounded. Eostral flat, oblong, erect, not 



narrowed below, regularly arched in front. Nostril Avith a 

 slit to the lower edge of the nasal. Nasal, frontonasal and 

 eye-shields oblong, subangular. Eyes distinct. Crown with 

 3 series of 6-sided shields. 



.5. Stenostoma. Head rounded. Rostral oblong, flat, erect, re- 

 gularly arched in front, narrowed below. Nostril with a slit 

 to the'upper as well as the lower edge of the nasal. Nasal, 

 frontonasal and eye-shields oblong, subangular. Eyes dis- 

 tinct. Crown with 3 series of 6-sided shields. 



6. Meditoria. Head rather narrowed in front. Rostral ob- 

 long, rather produced and slightly angularly bent in front, 

 tapering below. Nostril with a short slit towards the upper 

 and one to the lower edge of the nasal. Nasal, frontonasal 

 and eye-shields distinct, oblong, subangular. Eyes distinct. 

 Crown with 3 series of 6-sided shields. 



II. Tail elongate, cylindrical. Vent with a single transveise shield 

 in front. The frontonasal low doivn, inferior, tvide and square 

 below, forming, ivith the nasal and ocular, the edge of the upper 

 lip. 



7. Glaucoma. Rostral shield rounded abo\e. Crown-shields 



subequal. The frontonasal plate very short, to the nasal slit. 



8. Epigtia. Rostral shield truncated above. Central crown- 



shields small, 6- sided, the lateral broad, transverse, the fronto- 

 nasal plate moderate, to the front of the eyes. 



