Fig. 
Fig. 
ig. 29. 
. 30. 
Baile 
33. 
DR. J. MURIE ON THE ANATOMY OF THE SEA-LION. 593 
the pollex; 2, pair of interossei to the index, the radial and ulnar bellies 
being quite separate; 3, the double and deep interossei of the third digit, 
crossed in part by the so-called first superficial interosseous muscle; 4, the 
fourth digital pair of deep interossei (the ulnar one is hidden for half of its 
course by the so-called second superficial muscle); 5, double interossei of the 
fifth digit; F.t.m.d, flexor brevis minimi digiti; Ab.m.d, abductor minimi 
digiti. 
Partial outer view of bones of left fore limb, showing their ligamentous union : 
a, anterior; ¢./, external lateral; 0d, oblique, and p, posterior ligaments of 
elbow; @, interosseous ligament; 7./* and e./*, internal and external lateral 
ligaments of wrist-joint; po, posterior carpo-metacarpal ligamentous sheet ; 
c.m, ditto to pollex ; /, lateral pollicial metacarpo-phalangeal band ; s, synovial 
ligament fibres of the same joint of second digit; U, ulna; R, radius. 
The same bones on their inner aspect: p, posterior, and 7.7, internal lateral 
ligament of elbow-joint; 7, interosseous ligamentous band; ¢./*, external 
lateral ligament of wrist; an, anterior common ligament of ditto; u.c, strong 
ulno-carpal plane, deeper than the last; ¢, transverse ligament; F'c.r, tendon 
of insertion of flexor carpi radialis. 
D.pf' and D.p,f?, the double deep palmar fascia, with Fc.r, flexor carpi radi- 
alis tendon, piercing it. 
. Reduced view of the Otary’s palate: a.p, anterior palatine foramina. 
PLATE LXXIII. 
Belly view of the body and hind limbs of the Sea-lion, from the neck to the 
ankles, and the pectoral limbs to the elbow-joint. On the left moiety of the 
animal the structures immediately beneath the panniculus carnosus are defined 
in natural position. On the right side a partially deeper dissection is shown, 
several muscles being reflected, others cut away, or their origins and insertions 
only left. 
LETTERS APPLICABLE TO THE ANTERIOR SEGMENT. 
St.h.&t. Sterno-hyoid and thyroid muscles, La.d, Latissimus dorsi. 
Ch. Cephalo-humeral. Sca‘. Scalenus anticus. 
St.m. Sterno-mastoid. Sct. Supracostal. 
P.ma', P.ma®. Pectoralis major, first and It, It. Tntercostals. 
second divisions. R.ab. Rectus abdominis, anterior digita- 
St.s. Sterno-scapular. tions. 
S. Subscapularis. 
tr, trachea; ca, common carotid artery of right side ; pn, pneumogastric nerye ; 7.0, 
jugular vein; ae, axillary plexus of nerves and vessels. 
4p2 
