708 
Proceedings of the Royal Society of Edinburgh. [Sess. 
medium, ulna, ulnare, carpale 2 , and about equally with M m and Miy; in this 
carpus it was distinct from the ulnare, but in the left hand it was fused with 
it and formed a conjoined bone (compare fig. 7 with fig. 8). No separate 
carpale 4 or 5 existed, though possibly C 3 may contain the element C 4 , and 
carpale 5 may potentially be present as a part of My, for the ulnare was 
relatively small, so that C 5 could scarcely be regarded as fused with it. 
In the interval between carpale 2 , C 2 , the radiale and the intermedium was 
shrunken cartilage containing in the right carpus a small osseous nodule, 
which may be regarded as an os centrale, but in the left carpus the correspond- 
ing cartilage was unossified. Unossified and shrunken pisiform cartilage 
Fig. 7 — The right carpus of G. melas. Fig. 8. — The left carpus of G. melcis. 
formed the ulnar border of the carpus. In their articulations the metacarpals 
were arranged as follows : — Mi, the rounded bone with roughened surface for 
the pollex above referred to, articulated with carpale!: Mu with C l and C 2 
about equally, and with the cartilage of the os centrale : M m with C 2 and C 3 
about equally : the carpal ends of Mu and M m were bif aceted, the facets 
separated by a mesial ridge were inclined laterally, so that the corre- 
sponding distal carpalia were not opposite to the ridge, but to the lateral 
facets and to the interval between two metacarpals: Miy with carpale 3 and 
the ulnare : My with ulnare, the ulna and the pisiform cartilage. 
In Max Weber’s figure of the hand of Globicephalns melas three distinct 
disto-carpaliawere recognised: — carpale l , the most radial, jointed with M T and 
M n : a bone which he regarded as representing carpale 2 + 3 jointed with 
the bases of Mu and M nI : next to it a bone lettered C 4 which articulated 
