MYOLOGY OF OPISTHOCOMUS CRISTATUS. 



369 



Fig. 2. Muscles of flexor aspect of left vsdng (full size). Quills numbered and drawn 



full size 



a. Biceps. 



b. Triceps. 



c. Extensor plicae alaris. 



1. Extensor carpi radialis longior. 



2. Extensor carpi radialis brevior. 



3. Pronator radii longus. 



4. Flexor carpi radialis. 



5. Flexor sublimis digitorum. 



6. Flexor carpi ulnaris. 



7. 8. Elastic bands connecting the cu- 

 bital feathers. 



9. Flexor metacarpi pollicis. 

 10. Flexor profundus digitorum. Pal- 

 maris tendon has been removed. 



pt. Pectoralis magnus. 



sectioned. 

 pU. Pectoralis secundus 

 pil'. Pectoralis tertius. 



1. Furculum. 



2. Coracoid. 



3. 3'. Humerus. 



Fig. 3. Muscles of breast and wing (nat. size). 



4. Sternum. 



5. Sternal tubercle. 

 Sc. th. Scalenus thoracis. 



Right side 



a, b, c, d. Factors of the extensor plicae 



alaris. 

 gl. Gullet (sectioned). 

 f7: Trachea. 



PLATE LXV. 



Fig. 1. Muscles of foot, ventral aspect (full size). 



1. Gastrocnemius. 



2. Flexor perforatus of 2nd digit. 



3. Flexor longus hallucis. 



4. Flexor perforans of 2nd, 3rd, and 



4th digits. 



5. Peronsei. 



6. Tibialis anticus. 



7. Extensor longus digitorum. 



8 Flexor perforatus of 3rd and 4th 

 digits. 



9. Additional tendon grooved for per- 

 foratus tendon of 2nd digit to pass 

 through. 

 10. Extensor longus hallucis. 



A, B, C, D. 1st, 2nd, 3rd, and 4th digits. 



Fig. 2. Muscles of foot (left). Dorsal aspect. 



1. Extensor brevis hallucis. 



2. Extensor longus hallucis. 



3. Gastrocnemius. 



4. Flexor perforatus of 2nd digit. 



5. Flexor longus hallucis. 



6. Flexor perforans of 2nd, 3rd, and 



4th digits. 

 VOL. IX. — PART VI. December, 1875. 



7. Peronaeus. 



8. Tibialis anticus. 



9. Extensor longus digitorum. 



10. Flexor perforatus of 3rd and 4th 



digits. 

 11,12. Extensor brevis digitorum (outer 



and inner portions). 



3d 



