﻿FELIS SPEL^A. 



129 



inwards from the intero-posterior angle of the bone. It presents on its antero-internal 

 surface a round flat articulation (fig. 1', e) for the phacoid bone, to which is attached the 

 adductor pollicis muscle instead of to the tubercle itself, as in man. It affords attach- 

 ment to a large number of ligaments, the principal of which is the annular or armillary, 

 which is attached by some of its lower fibres. It would serve but little purpose were we 

 to enumerate them all, for they are extremely difficult to separate ; they have been reckoned 

 and described to the number of twenty-six by Straus-Durckheim. 1 They bind the radius 

 to the carpus, and the bones of the carpus the one to the other. 



The distal surface of the bone is entirely articular, and is divided by well-marked 

 ridges into three well-defined articulations, the internal being a slightly concave parallelo- 

 gram (figs. 1, 1', 2,/) set diagonally outwards and downwards for the head of the unci- 

 form ; the second (figs. 1, 1', 2, g), being more concave than the preceding and wider 

 posteriorly than anteriorly for the reception of the head of the magnum ; and the third, 

 (figs. 1, 1', 2, h), being triangular and divided by a broad diagonal elevation into two 

 slightly concave surfaces for the reception of the heads of the trapezium and trapezoid. 



We have met with no scaphoido-lunare of Lion or Tiger which equals in size several of 

 those in the Taunton Museum belonging to Felts spelaa, but we have figured one from 

 Bleadon Cave (PI. XX, fig. 2), which in no respect differs from those of either of the 

 above animals. The larger spelaean specimens are somewhat thicker proportionally than 

 the smaller, as well as the leonine and tigrine. That figured from Sandford Hill Cave, 

 (PI. XX, fig. 1), apparently belongs to the individual that has furnished us with a great 

 many of the originals of our plates. 



§1/3. Measurements. — The following table shows the variation in size between the 

 leonine, tigrine, and spelsean scaphoido-lunaria. 



Comparative Measurements. 





Felis speltea. 



F. leo. 



F. tigris. 



Taunton Museum. 



< 



bo 



a 



U 



c 

 o 

 -a 

 o 



3 & 



i> 

 a 



<D 



bo 

 as 



i-J 



B > 



a: a 



So 



"3 — 



&w 



-a'E 

 <u 5 



? 'S 

 bo c 



E a 



Figured specimen. 

 Smallest. Blea- 

 don Cave. 



1. Maximum length 



2. Minimum circumference 



1-75 

 6-80 

 2-30 

 1-40 

 2-08 

 1-53 



1-33 



675 

 2-10 

 1-60 

 1-96 

 1-41 



1-12 

 5 - 75 

 1-87 

 1-13 

 1-65 

 1-30 



1*12 



5-20 

 1-80 

 1-45 

 1-64 

 1-10 



1-12 



1-8 

 1-2 

 1-42 

 0-93 



3. Transverse measurement of proximal articulation 



4. Vertical ditto 



5. Transverse measurement of distal articulation... 



6. Vertical ditto 



1 Op. cit., vol. ii, p. 84 et seq. 



