THE AMERICAN BISONS. 27 
are one fourth to one third larger than either those of B. americanus or B. 
bonasus, about equalling in circumference at base those of B. priscus, but 
are only about two thirds as long as those of B. priscus, In none of the 
above-enumerated forms, except B. priscus, do the horns exceed a length 
of ten to fourteen inches, while in B. datifrons they attain a length of nearly 
three feet, or nearly twice the length of those of B. priscus with a correspondingly 
greater thickness. 
In the foregoing pages, in discussing the affinities of the bison remains 
from Georgia, tables of comparative measurements have already been given 
which include the measurements of some of the remains described by Rich- 
ardson from the ice-cliffs of Eschscholtz Bay. These tables show, as already 
noticed, the considerably larger size and heavier character of these remains 
as compared with those of Bison americanus and Bison bonasus, and their much 
smaller size (especially of the horn-cores and skull) as compared with Bison 
latifrons. A few further details are here given, relating more especially to 
the dentition, the lower jaw, and the metacarpal bones. 
The teeth, as shown by the following table, also indicate that Bison antiquus 
is intermediate in size between Bison latifrons and Bison americanus, or about 
the size of Bison priscus. 
TABLE V. 
MpasuReMENTS oF THE MouAR TEETH. 
1,/213141516 7 
First upper molar, greatest eae = er of a OWN «.-....-..- 38 81) 32 
erse ee ee 16 
e g oe ie ASC -....-:...-- OE lo .| 29] 24 
a a a e length from base of eae tO COW... (slog al cele) oy 
at app or a oe ior diameter of Oe 38| 34).. 1...|.--| 39) 34 
transverse = —“—i Ct Pe el lee le Le 
2 2 “ © & si bes So -. 1 28|),..|...|.... 30) 26 
G o «“ length from base of fangs to crown......... WOR ee 
Third upper molar, BN Sale opodeiie: — “of as folie Ad| 38|......1.--| 38) 33 
TAMSVEESC = |. | Otle. | 16 
= “ . . are HC a] 200... || 30... 
2 «= dclensth ee oe V6. le eee | 12 
“ lower molar, er ees antero- -posterior diameter “of coe Fon eee ...{.--] 80] 380)..<]-..| 29 
transverse ee Se) Uc 
ce “ oo we ee se Be alec Po || 18 
. length from base of fangs to crown ..-.-+----- ot 88 
Se cond lower nolan ee ee -posterior diameter of Grown = +7 ...[+--| 89] 86/...)...) 82 
oe es eee 23) 23 aoa ud 
c a ce oe “« “ at a So . ee as 19 
a (o Jen oth from base of fangs 40 Crown «..-----: Peleg ee ie ae eae 68] 
Third lower molar, gr ee antero-poste sterior diameter of crown..--------- 52)...| 53] 51) 48]...| 42) 
6 66 « 6 4 20 21) 20) 22 14 
(a 66 6 a & at PASC << << cs ele lee cle eels tle le we af 
Le « & “© Jength from base of fangs to crown-.--....--- GO ci eine. 69] 
