RAN A. 



279 



Lower surfaces more or less profusely spotted with 

 blackish. Iris golden. 



The enormous differences of proportions separating 

 this variety from the other extreme, the var. ridi- 

 bunda, maybe realised by comparing the measurements 

 in the following table with those given on p. 275. 



Measurements (in millimetres). 



1, 4. Stow Bedon, Norfolk : Walsingham. 



2, 5. Offenbach : Bedriaga. 



3, 6. Piedmont : Camerano. 



7. Szamos Ujvar, Hungary : Mehely. 



Skeleton. — The skull is remarkable for the ex- 

 treme narrowness of the interorbital region, its width 

 being only about one-third the length of the fronto- 

 parietal bones ; these are more or less distinctly 

 grooved along the median line, and do not extend 

 quite to the anterior borders of the orbits, a small 

 portion of the ethmoid remaining uncovered and 

 forming an obtuse point anteriorly ; the fontanelle is 

 also more or less exposed in specimens that are not full- 

 grown. Nasals rather large, oblique, forming together 

 an obtuse angle, in contact or narrowly separated on 

 the median line ; their posterior border usually nearly 

 straight. Squamosal large, the zygomatic process 

 long and pointed, nearty twice as long as the posterior 



