MUSCLES OF THE FORE LIMB. 21 
MUSCLES OF THE FORE LIMB. 
The coracoideus (Plate 5, fig. 5, c) arises by a conspicuous tendon from the 
ental face of the coracoid process. The caput breve is inserted on the inner 
mesial surface of the humerus at a point 13 mm. from its head; the caput longe 
passes as a tendinous band from 2 to 3 mm. wide expanding somewhat distally 
to its insertion on the postero-internal portion of the humerus Just proximal to 
the epitrochlea. Dobson makes the brief statement that this muscle in Soleno- 
don is very similar to that in Erinaceus and Centetes. In Gymnura and Myogale 
the muscle was not detected, while in Potamogale the caput longe was wanting. 
The subscapularis (Plate 5, fig. 5, a) is strongly developed. It is attached 
on the subscapular surface of the scapula, and arises from three rather distinct 
sets of fibers: (1) a set originating along the coraco-vertebral margin of the 
scapula nearly to the coraco-vertebral angle; (2) fibers from the vertebral 
margin of the scapula near the insertions of levator anguli scapulae and serratus 
magnus; (3) a bundle of fibers arising along the glenoid margin of the scapula, 
partly on the ental surface of the latter. Tendinous fibers from these three 
divisions run forward as a large tendon to an insertion on the trochin of the 
humerus underneath that of the coracoideus. 
The large swpraspinatus (Plate 5, fig. 6, 7) is from almost the entire supra- 
spinous fossa except its most posterior portion, from the coraco-vertebral margin 
to the margin of the mesoscapula, becoming tendinous as it passes under the 
acromion to its insertion on the trochiter. 
The spino-deltoideus arises along the mesoseapula from Just posterior to the 
metacromion. It passes forward and slightly inward, to its insertion on the 
crista deltoidea of the humerus. Here it is joined by the acromio-deltoideus from 
the infraspinous border of the acromion, a smaller, narrower muscle. 
The origin of the infraspinatus (Plate 5, fig. 6, h) is underneath that of 
spino-deltoideus, from the whole length of the infraspinous fossa, except at the 
gleno-vertebral angle, where it meets and partly unites by a raphe, with the 
teres. Its tendon inserts on the trochiter, adjacent to that of the supraspinatus, 
but slightly distal to it. 
The peculiar relations of the epitrochlearis (Plate 5, fig. 5, d) have been 
described by Dobson in Solenodon cubanus and they are the same in S. para- 
doxus. This muscle arises from a raphe about 18 mm. long, from the commence- 
ment of the tendinous portion of the latissimus dorsi. It is also connected at 
this point by a few fibers from the teres. The insertion is at the olecranon, 
