

THE AMEEIGAN BISONS 



27 



?-^ 



are one fourtli to one third larger than either those of B. americamis or B. 

 honasiis about equalling in circumference at base those of B. prisciiSy but 



are only about two thirds as long as those of B. prisciis. In none of the 

 above-enumerated forms, except B. priscus, do the horns exceed a length 

 of ten to fourteen inches, while in B. latiffons they attain a length of nearly 

 three feet, or nearly twice the length of those of B.priscus with a correspondingly 



reater thickness. 

 In the foregoing pages, in discussing the aflBlnities of the bison remains 



from Georo-ia, tables of comparative measurements have already been given 

 which include the measurements of some of the remains described by Eich- 

 ardson from the ice-cllfFs 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 amerkanus and Bison honasus, and their much 

 smaller size (especially of the horn-cores and skull) as compared with Bison 

 Uifrons. 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 antiqims 

 is intermediate in size between Bison Uifrons and Bison americanus, or about 



the size of Bison ptisciis 



TABLE V. 



Measurements of the Molar Teeth. 



First upper molar, greatest an tero -posterior diameter of crown . . 

 it 4t i* " transverse '^ ** • - 



u 4t u t< *t ** at base 



tt u u « length from base of fangs to crown . . 



Second upper molar, greatest antero-posterior diameter of crown 





1£ 







transverse 



" at base 



length from base o£ fangs to crown 



Third upper molar, greatest antero-posterior diameter of crown . 



4£ 



ii 







transverse 



a 



u 



" at base 



length from base of fangs to crown 



First lower molar, greatest antero-posterior diameter of crown . 



*' " transverse *^ *' 



t« « *' " at base . 



" *t length from base of fangs to crown . 



Second lower molar, greatest antero-posterior diameter of crown 

 " ** ^' ^ transverse 



a ii u u 



a (( 4t u 





u 



« ** at base 



leno^th from base of fan^^s to crown 



Third lower molar, greatest antero-posterior diameter of crown 



tt 44 t4 4b fvQTiQT/PrftP. '^ 



44 

 44 



44 

 44 



44 

 44 



44 



a 



transverse 



<4 " at base 



length from base of fangs to crown 



C 



38 



27 

 63 

 38 



70 

 44 



76 



52 

 20 



34 

 23 



28 



38 

 21 



27 



» 4 • 



9 * 



69 



30 

 19 



39 



23 



4 



30 



36 

 23 



53 

 21 



51 

 20 



48 

 22 



6 



31 



29 



35 



30 



38 



30 



« » 4 



* « • 



32 

 16 



24 

 69 

 34 

 18 

 26 

 74 

 33 

 16 



4 4 « 



72 

 29 

 13 

 18 

 68 

 32 

 14 

 19 

 68 

 42 

 14 

 17 

 69 



I 

 I 





^ 



•J _ _ 



