512 BOVID^E. 



tremely close in every character, except the accidental 

 ones derived from the difference of the strata. 



The following are admeasurements of some of the speci- 

 mens : 



Hunterian Mr. Ball, 

 Irish Bog. Bog, West- 



meath. 



In. Lin. In. Lin. 



Length from the supra-occipital ridge to the nasal bones 80 80 



Breadth of the skull between the roots of the horns . 50 50 



Breadth of the skull across the middle of the orbits . 69 66 



Circumference of base of horn-core . . .4036 



Length following outer curvature , . .4036 



Span of horn-cores from tip to tip . . . 12 11 



Mr. Brown. Mr. Woods* 

 Fresh-water, Bog, Bridg- 

 Clacton beds. water. 



In. Lin. In. Lin. 



Length from the supra-occipital ridge to the nasal bones 00 00 



Breadth of the skull between the roots of the horns . 50 50 



Breadth of the skull across the middle of the orbits . 00 00 



Circumference of base of horn-core . . . 46 00 



Length following outer curvature . . .4040 



Span of horn-cores from tip to tip . . . 12 11 3 



Additional specimens of the Bos longifrons have been 

 transmitted to me by the Earl of Enniskillen from the 

 sub-turbary shell-marl in various localities in Ireland ; by 

 Mr. Strickland from the newer pliocene freshwater deposits 

 in the brick-field at Bricklehampton Bank in the valley 

 of the Avon ; and by Mr. Allies from the alluvium of 

 the Severn at Diglis. 



In the first of those localities the Bos longifrons is asso- 

 ciated with the Megaceros Hibernicus, just as it is in the 

 newer pliocene freshwater deposits in Essex ; in the 

 Bricklehampton beds, it occurs with both the Bison priscus 



* Mr. Woods deemed his specimen to indicate that the races of the genus Bos 

 in the ancient time must have been subject to many variations in point of size (op. 

 cit. p. 28) ; but I have met with none coeval with the Bos longifrons, of interme- 

 diate size between it and the colossal Urus and Bison. 



