British Forms of A [)odenius. 1 1 !• 



(c.-I). 1. 23*2-23'5), which is not unlikely characteristic of 

 the lowlands, the size is about as in Enj^lish s. sylvaticus. 

 ]u this iorui the zygomatic, iutcrorbital, and cranial widths 

 are relatively small, the brain-ease more depressed, the post- 

 molar length and bulhc are smaller, while the nasals, 

 rostrum, incisive foramina, and masseteric plate tend to be 

 narrower. The second or highland type is represented by 

 the specimens * From Loch Awe and Fortrose. These are 

 rather small (c.-I). 1. 22-.23- !■ ; 7 being 22-8 or less) ; their 

 y.ygomatic bri'adth, though greater tliau in tlie "lowland^' 

 form, is relatively less than in England; the cranial width 

 and depth are slightly increased ; the palatal length is 

 distinctly greater, the postmolar length, on the other hand, 

 shorter, although the bulhc remain about as in England ; 

 the nasals arc rather larger, especially wider; the diastema 

 and incisive foramina are slightly longer, the latter a little 

 wider ; the rostral breadth and the width of the masseteric 

 plate are about as in England. 



A skull from the mainland of Shetland (North Roe) f 

 resembles the highland form in its small size, broad deep 

 brain-case, and short postmolar length ; but it differs in 

 other respects. Although further material is necessary 

 before the exact status of this form can be determined, it 

 obviously represents A. sylvaticus, and is quite distinct from 

 the large form inhabiting the neighbouring island of Mid 

 Yell which is described below as a subspecies of A. fri- 

 dariensis. 



Skulls from Jersey agree with the largest English ones in 

 size ; their relative dimensions show increased zygomatic, 

 interorbital, and cranial widths ; a deeper bruin-case ; shorter 

 postmolar length ; rather short diastema, with long and wide 

 incisive foramina. In several of these respects there is 

 agreement with the form of the Scotch highlands. The 

 skull of the Alderney form is considerably larger ; in its 

 narrower and rather depressed brain-case and less expanded 

 zygomata it agrees with English or Welsh crania. 



All four skulls from Scilly are larger than the largest 

 from England (c.-b. 1. 23-8-2 1-3) ; the biggest one is nearly 

 equal to that from Alderney. The zygomatic and inter- 

 orbital breadths are small ; the brain case is as narrow but 

 not quite so deep as in Wales ; the postmolar length is as in 



* I have to thank Mr. C. H. Alston, Mr. Hugh St. Quiutin, aud 

 Mr. Oj.'ilvie-Grant for this material. 



t North Koe is at the nortliern end of the island; at Dunrossness, 

 at the southern end, a large form is known to occur, which niav turn out 

 to be a form of fn'doriensis. 



