22 



I'L K I ST( )('EN K MAMMALIA. 



p. The Pelvic Gikdle. 

 This is characterised by the shortness of the ilia and their evertion above, 

 British fossil specimens are almost always in a very fragmentary state. 



The 



(<>) Table of Comparative Measurements. 



Innominate Bone. 



1 . Maximum length 



2. Length from edge of acetabulum to dorsal or 

 anterior border of ilium 



3. Vertical measurement of ilium at widest point... 



4. Thickness of ilium at middle of surface 



5. Antero-posterior diameter of acetabulum 



6. Length from acetabulum to posterior border of 

 ischium 



7. Maximum diameter of obturator foramen 



8. Measurement along ischium from symphysis to 

 end of ischial spine 



r. horribilh. No. 

 854 (R. Coll. of 



Singulis Mils.). 



31-85 

 151 



li -25 



8'2 



1865 



14-7 



Fig. I. Ventral view of left innominate bone (N.II. 197), from the Newhall Caves, Edenvale, 

 Co. Clare, preserved in the National Museum, Dublin (-| nat. sine), a, ilium; b, ischium; r, pubis; (/, 

 acetabulum ; e, obturator foramen. 



<;. The Postekioe Limb. 

 This, as noted by (iandry and Boule, tends to be somewhat shorter in propor- 

 tion to the size of the animal in U. spel&us than in the bears of the arctos type. 



