ANATOMY OF THE LEMUROIDEA. 29 
This muscle Burmeister’ described in Tarsius as composed of two parts; but that 
portion which springs from the middle of the clavicle he considers the broad part. 
In Chetromys Owen* remarks that the deltoid has the usual extensive origin and 
insertion, but speaks of no division. The scapular portion is shown by us (PI. III. 
fig. 8, D*); the two others also exist. 
SuPRASPINATUS.—This arises not only from the supraspinous fossa, but also slightly 
from the posterior (inferior) side of the spine of the scapula towards its acromial end. 
The fibres converge to a very strong tendon, which is inserted into the radial or greater 
tuberosity of the humerus. 
It is but very imperfectly represented in L. varius by Cuvier, pl. 68. fig. 2, U. 
Figured in Galago crassicaudatus (P1. III. figs. 5 & 6, and Pl. IV. figs. 13 & 14, S.sp). 
In Tarsius* it occupies the supraspinous fossa only ; and in Cheiromys no fibres spring 
from the infraspinous fossa, but they take origin as far as the very edge of the spine 
beneath the acromion process. 
Iyrraspinatus*.—This muscle arises from the infraspinous fossa, except the axillary 
border and the spine towards its acromial end. ‘The fibres converge to a central tendon, 
which is inserted into a deep pit in the middle of the radial side of the radial 
tuberosity. 
It reaches the ridge-like portion of the axillary border in L. nigrifrons. 
Shown in Galago crassicaudatus (Pl. Il. fig. 3, Pl. II]. figs. 6 & 7, and Pl. IV. 
figs. 13 & 14, Isp). 
In Loris gracilis Cuvier represents it as large (pl. 67. fig. 1, m). 
In Tarsius® it is as in L. catta. 
In Cheiromys it arises from the whole infraspinous fossa (Pl. III. fig. 8, Z.sp). 
The SusscaPuLaris ® arises from the subscapular fossa as usual, and is very broadly 
inserted into the ulnar or lesser tuberosity of the humerus. 
Figured in Galago crassicaudatus (P1. III. fig. 5, and Pl. IV. figs. 13 & 14, 8). 
In Tarsius’ it is strong and partially divided into three by tendinous intersections. 
The usual origin of the subscapularis in Cheiromys, Owen remarks *, is by three prin- 
cipal fasciculi, and its tendon of insertion is closely attached to the portion of the capsular 
ligament which it passes over. In our muscular individual this subdivision was indistinct. 
TeRES MAJoR.—A very large and powerful muscle, which arises from the superior 
(posterior) half of the axillary border of the scapula and from the flat surface at the 
posterior end of that border. It broadens out greatly as it descends, and has a glistening 
tendinous outer surface. Its insertion, which is almost an inch wide, is into the inner 
margin of the bicipital groove separating the two portions of the coraco-brachialis. 
1 Loc. cit. p. 49, tab. 3. fig. 1. no. 15. 2 Loe. cit. p. 60, pls. 22 & 23. figs. 1 & 2. no. 15, 
3 Loc. cit. p. 48, tab. 3 & 4. figs. 1 & 9. 4 Cuvier, Joc. cit. pl. 69. fig. 1, m (L. varius). 
5 Loc. cit. p. 48, tab. 4. fig. x. 11, ® Cuvier, loc. cit. pl. 68. fig. 2, n (LZ. varius). 
7 Loc. cit. p. 49, tab. 3. figs. 2-13. 5 Loc. cit. p. 59. 
