512 BOVID.®. 
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. 
Ine) in’ ines Tain: 
Length from the supra-occipital ridge to the nasal bones 8 0 8 0 
Breadth of the skull between the roots of the horns Dae 0 by) 
Breadth of the skull across the middle of the orbits 6) 79 GPG 
Circumference of base of horn-core 4 0 Bhan (= 
Length following outer curvature 5 4 0 3. 6 
Span of horn-cores from tip to tip L250 1 
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 0 0 One 10 
Breadth of the skull between the roots of the horns 5 60 5 60 
Breadth of the skull across the middle of the orbits. 0 0 0 0 
Circumference of base of horn-core . : 4 6 OO 
Length following outer curvature 4 0 4 0 
Span of horn-cores from tip to tip - : . 12 0 Wk 
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 
My. Strickland from the newer pliocene freshwater deposits 
in the brick-field at Bricklehampton Bank in the valley 
of the Avon; and by Mr. Alhes from the alluvium of 
the Severn at Diglis. 
In the first of those localities the Los longifrons 1s 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. 
