94 THE MYOLOGY OF THE RAVEN. 



they pass upwards and slightly forwards, and are 

 inserted on the inferior surface of the apex of the 

 corresponding scapula (see Figs. 24, 34, and others). 

 60. The subclavius * muscle arises from the entire 

 outer surface of the costal process of the sternum and 

 the contiguous outer surfaces of three or four of the 

 hsemapophyses, in w T hich situation it is largely over- 

 lapped by the pectoralis tertius. Its outermost sheath 

 of fascia is attached to the inferior external margin 

 of the corresponding coracoicl bone, but its short and 

 oblique muscular fibres pass over this to be inserted 

 and fill the fossa that is found at the lower third of 

 the posterior aspect of the coracoid. When this muscle 

 contracts it simply pulls the coracoid very slightly 

 outwards, the bone sliding along upon the articulation 

 of its sternal bed. The more important function of 



1 Both Fiirbriiiger and Gadow describe this muscle as the sterno- 

 coracoideus, while originally it was considered by Tiedemanii and 

 Schopss to be the subclavius. 



Gadow presents us with the following synonymy for it (Bronn's 

 Klassen des Thier-Reichs, vi. Band, pp. 224, 225) : 



" 67. M. STEKNO-CORACOIDEUS. 



Le cfaviculaire court. Yicq d'Azyr. 

 Riickwartszieher der Schliisselbeine. Merrem. 

 M. clavicular is externus. Wiedemann. 

 M. subclavius. Tiedemann, 248. 



,, ,, Schopss. 



Ohne Namen, oder vielleicht kleimer vorderer Sagemuskel. Meckel, 



System, p. 308, No. 8. 

 Pectoralis minor. Ketzius. 



Subclavius s. pectoralis minor. Riidinger, p. 89. 

 Serrat.us anticus minor. Owen, Apteryx, p. 288. 

 Coraco-sternalis. Selenka, p. Ill, No. 36. 



,, ,, De Man, p. 105 ; Carlsson. 



Sterno-coracoideus. Fiirbrioger, Morph. Jahrb., v., xi., und Mono- 



graplde.'* 



