94 NATURAL HISTORY OF KERGUELEN ISLAND. 



Deltoideus, arising from coracoid eod of scapula, filling the space 

 between the tendon of pectoralis medius and latissim>us dorsi, to be 

 inserted into the pectoral ridge of humerus. 



Biceps presents nothing unusual. 



Infraspinatus and teres major* are represented by a single muscle, 

 which arises from the entire dorsal margin of scapula, and is inserted 

 into the ulnar tuberosity of humerus. 



A stout fasciculus of soft, daik muscle, which arises from nearly the 

 whole of the internal surface of coracoid and of the adjoining stout 

 strip of membrane, passes outward and upward through humero- 

 coracoid space to be inserted into the anterior tuberosity of the 

 humerus. Perhaps this is the muscle described by Oweut as the 

 analogue of coraco-brachialis, and said by him to "attain its greatest 

 relative size in the Basores, where it arises from almost the whole of 

 the coracoideum." 



Triceps extensor cuMti is divided into two distinct muscles, as usual. 



Numerous isolated fibres, re^re^,entiu g platysma myoides, originate from 

 anterior half of clavicle and proceed upward between the layers of the 

 superficial fascia, to be inserted into the skin, superficial surface of 

 CBSophagus, and crop. 



MUSCLES OF THE LOWER EXTREMITY. 



ISartoriws as usual. 



Rectus femoris and tensor vaginw femoris {abductor magnus of Owen) 

 arise thin and fan -shaped, by a membranous aponeurosis from the 

 superficial fascia of the back and from outer margin of sacrum and 

 ischium, to be inserted by trvo tendons, the uppermost going to the 

 anterior part of the sheath of cruraeus, the low'ermost to the head of 

 fibula. The muscle is very thin and its tendon a delicate aponeu- 

 rosis. 



Glutcei and crurceus (including internal and external vasti) present 



no characters of particular interest. 



Biceps arises just above inner hamstring muscle from ischium, and is 

 inserted into fibula, tully 0.8 inch below the knee joint. 



Semimembranosus and semitendinosus are inserted into tibia at about 

 the same level, above insertion of biceps. 



Adductores and gastrocnemius not noted as peculiar. 



* Vid. Oweu, Comp. Anat. and Phj^s., vol. ii, p. 95. Lond., Longmans, 1866. 

 t Oweu, I. c, p. 97. 



