86 THE MYOLOGY OF THE RAVEN. 



As a rule, these muscles are not fully described in 

 works devoted to the myology of birds, and until such 

 time as the homologies in myology are better known, 

 I have Ijestowed the following names upon these two 

 little muscular slips : — 



55. TliG coraco-htmieralis} 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, cJi.). 

 Its filu'es form a delicate, subcylindrical 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 j)ectoralis major (Fig. 29). 



5G. The scapnlo-humeralis '^ (Fig- 8) arises from the 



1 Flirbi'inger defines this muscle as the coracohrachialis anterior 

 s. externus, in his magnificeut 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-bracJiial. Vicq d'Azyi-, 1773, 



p. 568, No. 5. 

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

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

 C oraco-hrachialis jyroprius s. pectoralis niedius. Riidinger, p. 89. 

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

 Coracohracldalis anterior s. externus. Flirbringer (Joe. cit., p. 251)." 



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

 the deltoideus minor of Fiirbringer, and he gives the following 

 synonymy of it : — 



" 70. M. DELTOIDEUS MINOR. 



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

 Levator humeri. Tiedemann, § 255 (?). 



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



Deltoideus externus. Schopss, p. 120, No. 19. 

 Kleiner deltaformiger Muskel (Vorwiirtszieher des Oberarmes). 



Prechtl, § 39. 

 Deltoideus minor. De Man, p. 108. 



