THE MUSCLES 73 



held firm by the dorsal trunk muscles then it would protract the 

 pectoral girdle. 



M. dorsalis scapulae (m.d.s.). Humphry (1872); Riidinger (1868); 

 Fiirbringer (1873); Hoffmann (1873-8); Osawa (1902). 



Sur-epineux et Sous-epineux conjoints . . . Cuvier (1800). 



Scapularis ........ Funk (1827). 



Auswartszieher oder oberer ausserer Schulterblattmuskel Meckel (1828). 

 (?) Externus (supra — et infra — spinatus) et internus scapulae (subscapu- 



laris) (22) Carus(i828). 



Adscapulo-humeral, sous-epineux .... Duges (1834). 

 Suprascapularis . . . Stannius (1854-6); Rylkoff (1924). 



Subscapularis . Schmidt, Goddard, and van d. Hoeven (1864). 



Supra- and infra-spinatus, and perhaps also Deltoideus Owen (1866). 



Deltoid Mivart (1869). 



filevateur scapulaire du bras (90) .... Perrin (1899). 



This muscle is fan-shaped and arises from the dorso-lateral surface 

 of the cartilaginous suprascapula, and is partly covered by the M. 

 dorso-humeralis. Its fibres run ventralwards and converge to a very 

 strong tendon which is inserted on the side of the crista ventralis 

 humeri. This insertion lies between those of the M. procoraco- 

 humeralis and the M. dorso-humeralis, but is entirely separate from 

 both. 



Innervation: By the N. dorsalis scapulae from the third spinal 

 nerve. 



Function: Its function is obviously to raise the arm in a vertical 

 plane passing through the shoulder-joint. 



M. dorso-humeralis (m.d.h.). 



Grand dorsal ....... Cuvier (1800). 



Oberer Riickw^artszieher oder breiter Riickenmuskel . Meckel (1828). 

 Latissimus dorsi . Funk (1827); Carus (1828); Stannius (1854-6); 



Schmidt, Goddard, and van d. Hoeven (1864); 



Owen (1866); Rudinger (1868); Mivart (1869); 



Humphry (1872); Osawa (1902); Rylkoff (1924). 

 Vertebro-costo-humeral, grand dorsal . . . Duges (1834). 



M. dorso-humeralis (latissimus dorsi) Furbringer (1873); Hoffmann 



(1873-8). 

 Elevateur dorsal du bras (89) ..... Perrin (1899). 



A large, flat, triangular muscle plate, situated behind the shoulder, 

 which takes its origin from the dorsal fascia continuous with that 

 from which the M. cucullaris and M. depressor mandibulae, &c., 



