PLEISTOCENE MAMMALIA. 





(3) Table op 



Comparative Measurements of Hyaena Sku 



LLS. 









-; 



s 



i 



■g 



^ 



•s 



Is 



•Sag 



■2 =K 



.1 



.go 



i 



«3 



ii 



e--| 



J 



J 





ft! 



6 



III 



i 



ill 



a 



i 





III 







o 



1" 



Ill 

 III 



if 



ft 



ill 



""I 

 1 



II 

















"^ 













1. Length from inter- 





























condylar notch to 





























anterior end of 





























skull 



200 



247 



236 



22 55 



22-3 



24-65 



24-7 



22-5 





25-6 







20-1 



2. Extreme width 



























across zygomatic 





























arches 



15-2 



17-G 



1705 



16-75 



18-05 





' 







19-9 



17-5 



14-8 



3. Vertical height from 





























suture between ba- 





























sioccipital and basi- 





























sphenoid to top of 





























sagittal crest 



7-8 



9'8 



9-95 



9-3 



9-6 



10-95 



10-35 



9-5 



7-9 



11-6 



10-7 



9-1 



8-1 



4. Width immediately 





























above lachrymal 





























foramen 



4-0 



6-1 



6-55 



6-1 



5-35 



6-65 



6-75 





5-6 



6-15 



6-6 



5-35 



4-25 



5. Width between ends 





























of post-orbital pro- 





























cesses 



7-5 



8-0 



8-1 



7-4 



8-6 



8-2 



9-8 





7-2 



9-9 



8-5 



8-55 



8-0 



6. Width measured 





























from alveolar bor- 





























ders immediately 





























above last upper 





























premolars 



8'7 



11-3 



10-95 



10-7 



11-7 





126 







12-7 



12-4 



9-7 



8-15 



7. Minimum width be- 





























low foramen lace- 





























rum anterius 



0-9 



1-65 



1-75 



1-7 



1-6 



1-65 



1-65 



2-1 



2-05 



1-7 



1-7 



0-9 



1-25 



8. Diameter across oc- 





























cipital condyles . . . 



4-4 



5-2 



4-4 



5-25 



5-25 



5-6 



5-75 







5-6 







4-35 



9. Transverse diameter 





























of foramen magnum 



1-9 





1-7 



2-25 



2-1 



2-1 



2-2 



... 





20 







2-0 



10. Maximum diameter 





























of anterior narial 





























opening 



2-4 



3-3 



2-7 



2-8 



2-8 



3-4 



3-2 









3-2 



2-4 



2-15 



11. Maximum length of 





























right mandibular 





























ramus 



16-5 



19-8.5 



19-8.5 



18-7 



18-95 





18-85 17-651 





21-25 





18-45 



1615 



12. Transverse measure- 







ment of one condyle 



3-25 



4-6 



46 



4-1 



4-45 





4-4 



3-2 



4-11 



5-05 





4-4 



3-2 



13. Height from angle 





























to top of coronoid 





























process 



6-35 



8-9 



8-7 



8-2 



8-05 





8-75 







9-9 





8-3 



7-05 





I am not aware whether those mandibles belong to the crania measured. 



B. Dentition (Plates IV, V). 



(1) Dhiinciive Fcadircs of tlic Teeih in the Genus Hi/ana. — The dental formula of 

 Uycena is i. f c. | pni. f ni. \, as coinpared with i. f c, y pni. f m. \ in Felis, and 

 i. f c. Y pm. f in. f in Canis and JJrsns. In the upper jaw the incisor teeth pro- 

 gressively increase in size, so that there is no such marked contrast between i. 3 and c. 



