252 TRANSACTIONS OF THE [May 13, 
of Biceps crosses over the brachial vessels and the nerves to 
the internal epicondyle. 
The long tendon of the Biceps in this arm is dgunieds 
BLS. Ireland, aet. 72. January 9th, 1894. 
Combined with tendinous Gleno-ulnar band in right arm (vide 
I. 6, Plate XXXVI). 
b. Coraco-epitrochlear and Gileno-epitrochlear tendon combined. 
Case : 
$, U.S., white, aet. 46. November 11, 1893. 
Plate XXXVIII. Right upper extremity. 
A coraco-epitrochlear tendon, arising from Coracoid process 
at point of junction between Coraco-brachialis and short bicipital 
head, passes down as above described over the brachial vessels 
and the large nerves, and is joined at about the middle of the 
arm by a second similar tendon which arises from the outer por- 
tion of the capsule of the joint, descends beneath Pectoralis 
major tendon and then crosses obliquely down and in over the 
short bicipital muscle. The conjoined tendons continue down- 
ward in the line of the Internal intermuscular Septum and are 
inserted as a single band into the internal epicondyle. 
c. M. Coraco-epitrochlearis. 
Case: 
$, Germany, aet. 29. January 11, 1894. 
Plate XXXIX. Left upper extremity. 
A slender superficial tendon arising from the coracoid process 
develops a thin fusiform muscle at about the middle of the arm, 
which passes down to the internal epicondyle, lying upon the 
brachial vessels and the large nerves. 
The obvious connection of the Coraco-epitrochlear variations 
first described with the Coraco-brachialis inferior will be consid- 
ered in dealing with the relation of the Biceps to that muscle. 
3. M. BRACHIO-ULNARIS MEDIALIS. 
Under this head I have placed the variations which include a 
third bicipital head, arising from the inner surface of the shaft 
of the humerus, either from the interval between the Coraco- 
brachialis and Brachialis anticus, or directly from the latter 
muscle, or from the insertion of the Coraco-brachialis and con- 
tinuous with that muscle. 
It has seemed to me, in examining carefully this frequent vari- 
ation, that we have to deal here with a Coraco-ulnar head which 
has lost its girdle attachment and has transferred its origin to 
the shaft of the humerus, modifying its insertion by joining the 
remainder of the Biceps muscle. 
