86 THE MYOLOGY OF THE RAVEN. 



As a rule, these muscles are not fully described ill 

 works devoted to the myology of birds, and until such 

 time as the homologies in myology are better known, 

 I have bestowed the following names upon these two 

 little muscular slips : 



55. T/te coraco-humeralis, 1 the smaller and more 

 anterior of the two, arises from the outer side of the 

 head of the coracoid, above and rather posterior to the 

 origin of the long head of the biceps (Fig. 24, c.h.}. 

 Its fibres form a delicate, sub cylindrical cord that passes 

 to the head of the humerus to become inserted upon 

 its palmar aspect, beyond and to the inner side of the 

 insertion of the pectoralis major (Fig. 29). 



56. The scapulo-humeralis 2 (Fig. 8) arises from the 



1 Fiirbringer defines this muscle as the coracobrachialis anterior 

 s. externus, in his magnificent work upon the morphology of the 

 class Aves ; and Gadow presents us with the following synonymy : 



" 75. MUSCULUS CORACO-BRACHIALIS ANTERIOR. 



Le muscle qui correspond au coraco-lyracldal. Vicq d'Azyr, 1773, 



p. 568, No. 5. 



Deltoideus inferior. Schopss, p. 122, No. 20 (partim). 

 Deltoideus minor. Heusinger, p. 183, No. 6. 

 Coraco-brachialis proprius s. pectoralis medius. Riidinger, p. 89. 

 Deltoideus minor. Selenka, p. 117, No. 43. 

 Coracobrachialis anterior s. externus. Fiirbringer (loc. cit., p. 251)." 



2 According to Gadow (loc. cit., p. 234) this muscle represents 

 the deltoideus minor of Fiirbriuger, and he gives the following 

 synonymy of it : 



" 70. M. DELTOIDEUS MINOR. 



Le petit releveur de Vhumerus. Vicq d'Azyr, 1773, p. 567. 

 Levator Jiumeri. Tiedemann, 255 (1). 



,, Heusinger, p. 183, No. 7. 



Deltoideus externus. Schopss, p. 120, No. 1 ( J. 

 Kleiner deltafb'rmiger Muskel (Vorwiirtszieher des Oberarmes). 



Prechtl, 39. ' 

 Deltoideus minor. De Man, p. 108. 



