FELIS SPELAA. 129 
iwards 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.’ 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, 7) set diagonally outwards and downwards for the head of the unci- 
form; the second (figs. 1, 1’, 2, g), bemg 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, 4), 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 Felis spelea, but we have figured one from 
Bleadon Cave (Pl. 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, 
(Pl. XX, fig. 1), apparently belongs to the individual that has furnished us with a great 
many of the originals of our plates. 
§ 1 B. Measurements.—The following table shows the variation in size between the 
leonine, tigrine, and spelzean scaphoido-lunaria. 
CoMPARATIVE MEASUREMENTS. 
Felis spelea. F. leo. |\F. tigris. 
Taunton Museum. 
s |,g£ |e : &o 
2 HO lee eats 
ag) ll Se Seal hene oe 
| et )age| 8 
42 aren ie 
& Bs |528 
5 be | 2s 
| 4 aA ee 
MOUND NEGO oo. ce ee sce c cr sesevepoasnesee 1°75 | 1:33 | 1:12) V12 | 112 
2. Minimum circumference .................00seeeeee. 6:80 | 6°75 9°79 5°20 oe 
3. Transverse measurement of proximal articulation | 2°30 | 2°10 | 1°87 1:80 1°8 
ai Wianthrah) GUGIG) Aen Ae L400) 1260) Piss es leson ee? 
5. Transverse measurement of distal articulation... | 2°08 | 1°96 | 1°65 | 1°64 1°42 
FMUENIICHUMUIOLOM Meee coer ec sions. c.ki estes decimal ooeste rine 1:53 1°41 1°30 1:10 | 0°93 
1 Op. cit., vol. ii, p. 84 et seq. 
