318 
ME. ST. GEOEGE MIYAET ON THE SKELETON OF THE PEIMATES. 
Chimpanzee or Indris the distal part of the scaphoid is developed from a separate centre 
of ossification. 
If Fischer’s observation be correct, — that the intermedium, which he found separate 
in the young Macaco, was in an adult one united with the scaphoides *, — these separate 
centres may not improbably exist in the young, at least, of Indris f . 
Semilunare. — This bone has much the same shape throughout the Order. In the 
Gorilla, and also in other Simiidse, it is larger and broader relatively than in Man. In 
some forms, where it is relatively small, as in Lemur and Indris J, it yet unites slightly 
with the unciforme, from which in higher forms it is, although relatively larger, some- 
times excluded. It is large in the Nycticebinse, projecting much proximally in Loris, as 
also in Tarsius §. It is very large in Cheiromys, where it is separated from the unci- 
forme by the extension of the intermedium as far as the cuneiforme || . 
Cuneiforme. — This is longer and narrower in Troglodytes than in Man, and it is 
exceedingly elongated in Simia. It is large also in the lower Simiidse. Compared to 
the semilunare, it is large in Lemur, and still more so in Indris ^f, but in Loris it is 
much smaller than the last-mentioned bone. 
In all but Man, Troglodytes, and Simia, it articulates directly with the ulna, though 
very slightly so in the Nycticebinse. In all the rest of the Order it has an articular 
surface, for the reception of the styloid process of the ulna, which is contiguous to a 
similarly destined articular surface of the pisiforme. 
Sometimes in the lower Simiidse the outer end of the cuneiforme is produced into a 
rounded process or tubercle, projecting into the palm in front of the pisiforme. 
The cuneiforme is small in Tarsius **. 
Pisiforme. — The pisiforme is very small, relatively, in Man, Simia, and the Nyctice- 
binse. It is rather small in the other Lemuroidea and in Ateles ; larger in the rest of 
the Cebidse (especially in Mycetes, where its distal end is much expanded) and in 
Hapale ; larger still in the Simiidse other than Simia, and very large indeed in the 
Gorilla, where it attains its greatest absolute size, though relatively, perhaps, it is yet 
greater sometimes in Cynocephalus. In Hylobates it is long, but slender. 
The pisiforme of the Simiidse resembles that of Man, enlarged and pulled out at its 
free end, so as to change the little transverse groove which exists in him into a very 
long and slightly concave surface. 
In all, except Man, Simia, and the Nycticebinse, it developes an articular surface for 
the ulnar side of the styloid process of the ulna, and contributes to form, with the 
* His words are, “Dieses ware spater gewiss mit dem Kahnhein ganz verwachsen.” — Anatomie der 
Maki, p. 142. And the intermedium is represented as united with the scaphoides in his plate, Tab. 15. 
fig. A, 7. 
t In January 1867 (therefore since this paper was communicated), Dr. Wengel Gruber published an account 
of a divided human scaphoides. See Keichekt and Du Bois Eeymonb’s Archiv, 1866, p. 565, Tab. 16. 
t Its smallness in these genera is noticed by De Blainvilee, loc. cit. pp. 10 & 21. 
§ Burmeister’s £ Tarsius,’ Tab. 2. fig. 5, c. |j Owen, loc. cit. pi. 21. fig. 18, l,i,u. 
De Blainvilee, loc. cit. Lemur, pi. 10. ** Burmeisteb, loc. cit. Tab. 2. fig. 5, d. 
