70 



MR. W. STORKS FOX ON BONES 



[Jan. 16, 



powerful animal than F. lynx {horealis) in the British Museum 

 and the dweller in the Teesdale cave ; for in it the deltoid ridge 

 is strongly developed, but is not markedly so in the other two 

 specimens. The supinator ridge is prominent in all three. If 

 the Cales Dale bone had been comi^lete it would have exceeded 

 the Teesdale one in length. 



In the following table the last two columns sye taken from 

 Mr. Davies's article. 



Measurements of Humerus. 





F. lynx. 

 Cales Dale. 



F. lynx. 

 Teesdale. 



F. lynx (borenlis). 

 Brit. Mus. 1230 a. 



Transverse diameter of distal end.. 



l-o6 



1-40 



1-50 



„ „ trochlea 



1-08 



•87 



103 



Smallest circumference of shaft 



2-05 



1-75 



1-75 



One nearly perfect left os innominatum (text-fig. 26 D) and a 

 fragment of a right-side one do not appear to have belonged to 

 the same animal, for the fi'agment seems to belong to a less recent 

 date than the other, and to a lai'ger animal. The bone from the 

 left side lacks only the epiphyses on the extremities of the ilium 

 and ischium. It has the roi.ighened ridge above the acetabulum 

 more pronounced than the corresponding bone of the British 

 Museum skeleton, and is generally rather heavier in build, but in 

 all other respects the two are exactly similar in every detail. 



Measurements of Os innominatum. 



F. hjnx 



(left). 

 Cales Dale. 



F. li/iix 



(right). 



Cales Dale 



F. lynx 



{hn)-ealis) 



Brit. Mus. 



1230 A. 



Minimum circumference of ilium 



Minimum across ilium (Irom pubic to ischial 

 surface) 



Minimum circumference of ischium (between 

 acetabulum and ischial tuberosity) 



Across acetabulum 



Maximum length — between e.-itremities of 

 ilium and ischium 



2 46 



1-96 

 •79 



*5-90 



£•71 

 1-12 



2-05 



•81 



2-24 

 •90 



1-71 

 •81 



6-18 



* The apparent slioriness is due to the loss of the epiphyses. 



The hind limb is represented by two fragments of femur, 

 namely, the proximal end and part of the shaft of one from the 

 left side (text-fig. 26 E) ; and the head of another, also from the 

 left sitle. The larger fragnjent is perfect except that the lesser 



