﻿FELIS SPELiEA. 



131 



Comparative Measurements. 





Felis spelcea. 



Felis leo. 



F. tigris. 



Taunton Museum. 



B 



3 





S 



3 

 V 



3 



A 

 P9 



-S.sp 



3 



Sandford Hill Cave. 

 Figured. 



0) 



> 

 O 



a 

 o 



s 



> 



O 



c 

 o 

 -a 



rt 

 a> 



3 



1 . Maximum length 



2. Minimum circumference 



3 . Transverse measurement of proximal articulation 



4. Vertical ditto 



1-95 

 2-10 

 1-05 

 0-50 

 1-00 

 075 



1-92 

 2-10 

 0-95 

 0-53 

 1-00 

 075 



1-80 

 2-00 

 0-96 

 0-50 



0-82 

 076 



177 

 1-90 

 93 

 0-43 

 074 

 0-50 



1-29 

 135 



075 

 0-35 



1-52 



1-50 

 0-95 

 0-46 

 0-80 

 0-43 



1-55 

 1-35 



075 

 0-44 



5. Transverse measurement of distal articulation 



6. Vertical ditto 





§ 3. Unciform (figs. 5, 5',) a. Description. — The unciform of Felis spelaa is a small, 

 somewhat wedge-shaped bone, not distinguishable from that of the recent Lion and Tiger 

 except by its massiveness. The head of the wedge occupies the anterior or dorsal aspect 

 of the bone, and a very slight tuberosity is the only trace of the claw-like process which 

 gives the name to the bone in man. 



The proximal or scaphoidal articulation (fig. 5, a) is much narrower than the distal, 

 the sides being nearly parallel. It is much longer from front to back than broad ; convex 

 anteriorly and slightly concave posteriorly, it ends on the palmar surface in a semicircular 

 boundary. The distal or metacarpal articulation (figs. 5, 5', b) partakes of the wedge- 

 shape of the bone. It is deeply concave, and receives the heads of the fourth and fifth 

 metacarpals. The inner articulation (figs. 5, 5', c) for the magnum is shaped something 

 like the letter L, placed so that the stem coincides with the anterior edge of the bone. 

 It is nearly flat. The remaining articulation, or the cuneiform (figs. 5, 5', d), is for the 

 most part slightly convex, and occupies the anterior part of the external surface. The 

 anterior or dorsal surface assumes the form of an irregular pentagon (fig. 5), roughened 

 and indented between the lateral articulations for the attachment of several interosseous 

 ligaments. The thin end of the wedge, occupying the palmar surface, is a tubercle 

 (fig. 5', e) for the attachment of the adductor of the fifth digit ; the opponens of the same 

 digit not being attached, as in man, to this bone, but to the magnum. 



This bone strongly resembles that of the Bear, but is easily distinguished by the greater 

 squareness of the latter, as well as by the flatter distal articulation. "We know of no other 

 bone with which it can be compared. 



