72 THE MYOLOGY OF THE RAVEN. 



is represented by two thin triangular layers of the 

 muscular fibres attached to the under and lateral part 

 of the sternum, and converging to be inserted into the 

 proximal third of the minute humerus" (Anat. of Verts., 

 vol. ii., p. 96). 



50. The pectoralis secundus x (Figs. 24, 25, 26.29, 

 and 30) arises from the remainder of the keel of the 

 sternum not appropriated by the pectoralis major, as 



1 This is the M. SUPRACORACOIDEUS of Professor Hans Gadow 

 (Bronn's Klassen, vi. Band, p. 246), who has given a very full 

 description of it, together with the following synonymy, which 

 I republish below : 



"74. M. SUPRACORACOIDEUS. 



Pectoral moyen. Vicq d'Azyr, 1772, p. 624; Cuvier. 



,, ,, Gervais et Alix, p. 24. 



Mittlerer Brustmuskel. Merrem, p. 152, No. 2. 

 Pectoralis minor. Reid, p. 141. 



j, Nitzsch-Giebel (Upnpa, Coracias, Papageien). 



Pectoralis minor s. meditis. Wiedeinann, p. 83. 



,, ,, Tiedemann, 250. 



,, Heusinger, 183. 



Zweiter Brustmuskel. Meckel, System, p. 317, No. 11. 

 (Pectoralis secundus}. Hatighton (Emu, Rhea). 



,, Forbes (Tubinares) ; Weldon (Phoenicopterus 



et Leptoptilus). 



Deltoides maximus. Schb'pss, p. 124, No. 21. 

 Kleiner Brustmuskel (Umroller des Oberarnis). Prechtl, 40. 

 Pectoralis medius s. seciindus. Owen, Apteryx, p. 289. 

 Subclavius. Rolleston, p. 624. 



Selenka, Bronn, p. 118, No. 44; und Archiv Neer- 



land., 1870, p. 48 ff. 



De Man, p. 109. 



Pectoralis tertius. Jager Literatur, No. 80. 

 Pectoralis major (partim ?). Riidinger, p. 89. 

 Sus-epineux + accessoires du sus epineux. Alix, p. 396-399. 

 Pectoralis medius. Watson, p. 82. 

 Supracoracoideus. Fiirbringer, Morphol. Jahrb., v. und Mono 



graphie ; Carlsson, p. 25." 



