PLATE X. 



Muscles of Euchjptes chnjsocome. 

 Fio-. 1. — Palmar surface of wing of Eiidyptes chrijsocome, dissected to show the muscles. 



Ah. D. S. 

 B.I. 

 F. D. M. 

 F. M. B. 

 F. C. U. 



Abductor digiti secundi. 

 Brachial is interniis. 

 Flexor digiti minimi. 

 Flexor metacarpi brevis. 

 Flexor carpi ulnaris. 



F. P. D. Flexor profundus digitorum. 



F. S. D. Flexor sublimis digitorum. 



T 1. Fir.st head of triceps. 



T 2. Second head of triceps. 



T 4. Fourth head of triceps. 



Dorsal surface of wing of Emlyptes chrysooonie, dissected to show the muscles. 



Fig. 2.- 

 B. I. Brachialis inttirnus. 



E. M. B. B. Extensor metacarpi radialis brevis. 

 E. M. R. L. Extensor metacarpi radialis longus. 



E. 0. D. 

 E.C.U. 

 E. I. P. 



Extensor communis digitorum. 

 Extensor carpi ulnaris. 

 Extensor indicis proprius. 



F. M. B. Flexor metacarpi brevis. 



T. P. L. Tensor patagii longus and Pectoralis 



major. 

 Tl. First head of triceps. 



To. Third head of triceps. 



7" 4. Fourth head of triceps. 



Fig. :3.- 



Muscles of shoulder of Eudyptes chrysocome. 



S. A. Mill. Serratus anticus minor. 



B. C. Biventer cervicis. 



Inf. Sp. Infra-spinatus. S.Sp. 



P. Med. PectoraHs medius. T. z. 



R. Ehomboideus. T. 1 & 2. 



S. A. Maj. Serratus anticus major. . T. P. L. 



Fig. 4. — Diagram to show the arrangement of the tendons of insertion of the 

 latissimus dorsi in Eudypte.^ chry.socomc. 



Supra-spinatus. 



Trapezius. 



First and second heads of triceps. 



Tensor patagii longus. 



F.P. 



H. 



Fibrous pulley, through which the 



tendons pass. 

 Humerus. 



L. D. a. Latissimus dorsi (portion a). 

 L. D. h. Latissimus dorsi (portion h). 

 S. Scapula. 



Fig. 



5. — Dissection showine the muscles of the outer side of the thigh of 



Ad. Long. 

 Ad. Mag. 

 B. 



a a 



E.G. 

 G. Med. 



Fig. 6.- 



Ad. Mag. 

 Ah. D. E. 

 E.G. 

 F.P. 



Eudyptes chrysocome. 

 G. Mill 



Adductor longus femoris. 



Adductor magnus femoris. Oh. Ex. 



Biceps. S. M. 



Cruro-coccygeus. S. T. 



Extensor cruris. U. 

 Gluteus medius. 



The dotted lines indicate the outline of the .sartorius. 



Gluteus minimus. 

 Obturator externus. 

 Semi-membranosus 

 Semi-tendinosus. 

 Uropygium. 



-Muscles of the leg of Eudyptes chrysocome. The figure shows the arrangement 

 of the tendons in the sole of the foot. 



Adductor magnus. 

 Abductor digiti externi. 

 Extensor cruris. 

 Flexor perforatus digitorum. 



G. i. Inner head of the gastrocnemius. 



P. L. Peroneus longus. 



S. Sartorius. 



S. M. Semi-membranosus. 



