CANIS, 
Trxt-Fria. 5.—a. Left ulna of a wolf (Canis lwpus), incomplete at distal end, seen from the left side. 
From Kent’s Cavern, Torquay (Brit. Mus., No. M.8380). 8. Right ulna of a common fox (Canis 
vulpes) seen from the left side. From Ightham (Brit. Mus., No. M.72382). c. Right ulna of an Arctic 
fox (Canis lagopus) seen from the right side. From Ightham (Lewis Abbott Coll.). % natural size. 
1, olecranon ; 2, surface for articulation with the trochlea ; 3, surface for articulation with the radius, 
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