DR. J. MURIE ON THE ANATOMY OF THE SEA-LION. 
of both sides; 0.s, obliquus superior; 0.i, obliquus inferior; *, extra short 
muscle; £#./, rectus lateralis; 1, 2,3, 4, consecutive cervical vertebre. 
PLATE LXXII. 
Muscles of the deep ventral aspect of the neck, of the inside of the sternum, of the fore 
limb, and the interossei. Ligaments of the elbow, wrist-joint, and palmar fascia. 
Hard palate. 
ig. 24. Deep head, neck, and part of the thorax: R.a.ma, rectus capitis anticus major 
of the right side (it has been removed on the left); R.a.mi, rectus capitis 
anticus minor ; £./, rectus lateralis; Z.c', Z.c’, longus colli, its two portions ; 
Sca', Sca*, scalenus anticus; S.ct, supracostal; 7¢, intercostal; Di, Di*, di- 
gastric muscle, portion of its belly has been removed on the left side; 
Ma, masseter; Pt.i, pterygoideus internus; 2, the axis. 
‘ig. 25. Sternum and sternal cartilages, seen from within: 1, presternal segment or 
manubrium; 8, xipho-sternum; 9, ninth costal cartilage; Jt, portions of 
intercostalis ; 7.s, triangularis sterni. 
g. 26. Dissection of left pectoral limb, bringing into view the inner scapular and 
deep flexor muscles of the manus :—S, subscapularis; C.h, cephalo-humeral ; 
S.sp, supraspinatus; Z’.ma, teres major; T.mi, teres minor; P.7.t, Pronator 
radii teres; S.mg, serratus magnus; La.d and P.ma, humeral insertions of 
lat. dorsi and pect. major; 7", 7°, 7°, triceps, three heads; D.ep, dorsi epitro- 
chlearis; 4.7, anconeus internus; B, biceps, tendon of insertion indicated by 
line, that of the brachialis anticus by dots; F.c.7, flexor carpi radialis, close 
to which is unhooked tendon (£.0.m.p) of the extensor ossis metacarpi pollicis ; 
Pl’, separated belly and tendon of palmaris longus primus; P./., palmaris 
longus secundus belly; P./*, deep palmaris longus tertius, which continues 
into the superficial palmar fascia (Pa,f, Pa.f*), which is divided and reflected 
outwards; F.s.d, flexor sublimis digitorum; /.p.d, flexor profundus digi- 
torum; J and V, thumb and little finger. 
Fig. 27. Diagrammatic sketch of front humero-radial borders, showing relative positions 
of muscular insertions. The lettering corresponds with fig. 26 ; but besides 
note :—/Jf, tendon of infraspinatus; B.a', B.a", origin and insertion of bra- 
chialis anticus primus; B.a?, brachialis anticus secundus (belly); S./', S./?, 
double-headed supinator longus; §.d, supinator brevis; E.c.7./ & 6, extensor 
carpi radialis longior and brevior, single-headed, split below; D', deltoid 
(insertion). 
Vig. 28. Interosseous and small flexor muscles on the palmar surface of the manus: 
I to V, digits, cut short just beyond the metacarpo-phalangeal joints; S./'** 
first and second superficial interosseous muscles; 1, interosseous muscle of 
