THE ameeica:^ bisons 



15 



The imperfect humerus from Georgia is rather larger (about one tenth) 

 than the humerus from Eschscholtz Baj referred by Dr. Eichardson to his 

 Bison crassicornisy as shown by Dr. Leidy's measurements. The tibia has 

 also about the same proportional size as the humerus. 



The metatarsal bone from. Georgia is also a little stouter than the meta- 

 tarsal attributed by Dr. Eichardson to Bison erassicornis^ though of about the 

 game lengthy but^ as shown by the subjoined table of measurements, neither 



> * 



differs much in size from the corresponding part of a large old male aurochs^ 

 all of which much exceed in size the metatarsal of an old very large male 

 Bison americanus. 





TABLE II. 



^ 



Measurements of Metatarsat, Bones. 



r 



n _ 









"^ 





^ 



1 



268 

 63 

 61 

 39 

 39 



142 



2 



264 



65 



: 62 



44 



44 



145 



3 



266 

 66 

 60 

 46 

 35 



130 



4 



256 

 57 



35 



40 



124 



5 



264 

 57 

 50 

 37 

 39 



133 



6 



243 

 44 

 40 



25 

 2.8 

 92 



7 



256 

 68 

 63 

 43 

 42, 



147 



8 



1 



283 



A ^k ^b 



9 



1 



270 



^ ^k A A 



\ 





CTrcatest antero-postcrior diameter of proximal end 



Transverse diameter of shaft 3| in. from proximal end. . 

 Antero-posterior diam. of shaft 3^ in. from proximal end 



V V W V 



■ W ■ P 

 M A ^k fl 



V ■ V V 

 » * * * 



^ J. ■■ ^L 



^ • T ™ 



45 



A ^k ■ 



V 4 4 w 



130 



• • • • 



Explanation of T 



abl© 



II. 





- 











■ 



1. Bison *^ crassicornis." " N"o. 78 " of Kicbardson, 



2. Biso?i latifrons. Dr. Leidy'a specimen, Darien, Georgia. 



3. Bison honasus. 



Large old male. (M. C. Z. No. 165.) 



4. Bison americanus. 



Large old male. (M. C. Z. No. 10 ) 



5. 



Bison americanm. Specimen (fossil?) from Dubuque, Iowa. (See Wyman, in Whitney's E.ep» on the 

 Upper Mississippi Lead Eegion, p. 42L) 



6. Bison americanus. Adult female. (M. C. Z. No. 1 735.) 



7. Domestic Bull, " Baron of Oxford," 



8. Bison prisons . Specimen from ClactoDj England. Professor Owen's measurements. 



9. Bison ''^ honasus '^ ■ ** Sub-fossil" specimen from Lilljeborg*s measurements. 



J 



The fragment of a ramus from Georgia is the only portion of the lower 

 jaw' supposed to belong to any of the extinct American bisons thus far 

 described. The teeth in this fragment being very much worn and their 

 original characters thereby disguised^ the specimen was at first referred to 



the genus Sits, and was subsequently made the basis of a new genus for a 



supposed new ^^ tapiroid pachyderm." Still later it was determined by Dr. 



Leidy to belong 



an extinct bison^ being referred by him to Bison 



J _y^ -._.-. ^-^ 



