1903.] THE MUSCLES OF THE UNGULATA. 295 



2. Sterno-masseteric into anterior border of masseter except in 



Sheep. 



3. Doiso-epitrochlearis small or absent. 



4. Infraspinatus secundus sometimes, though rarely, present. 



5. Rhomboideus capitis absent. 



6. Sterno-scapularis small, often absent. 



7. Coraco-brachialis medius or medius and longus. 



8. Palmaris long-us absent. 



9. Lumbricales absent. 



10. Supinator longus absent. 



1 1 . Obturator internus rises outside pelvis. 



12. Obturator tertius present. 



13. Peroneus quinti digiti absent. 



14. Tibialis posticus present or absent. 



Tapirid/E. 



1. Central tendon of digastric absent. 



2. Omo-hyoid well developed. 



3. Sterno-masseteric into angle of jaw. 



4. Dorso-epitrochlearis from latissimus dorsi. 



5. Rhomboideus capitis absent. 



6. Sterno-scapularis comes from three costal cartilages. 



7. Infraspinatus secundus present. 



8. Coraco-bi^chialis medius and longus. 



9. Palmaris longus absent. 



10. Flexor brevis digitorum manus sometimes present. 



11. Supinator longus present. 



12. Pronator quadratus present. 



13. Obturator internus rises inside pelvis. 



14. Obturator tertius absent. 



15. Peroneus quinti digiti absent. 



16. Tibialis posticus absent. 



17. Splenius colli very strong. 



Equtd.e. 



1. Vertical slip of panniculus over shoulder. 



2. Slip of digastric to ramus of mandible. 



3. Sterno-hyoid has a central tendon. 



4. Omo-hyoid well developed. 



5. Sterno-masseteric into angle of jaw. 



6. Dorso-epitrochlearis from axillary border of scapula. 



7. Rhomboideus capitis absent. 



8. Sterno-scapularis from three costal cartilages. 



9. Subglenoid muscle occasionally present. 



10. Infraspinatus secundus present. 



11. Coraco-brachialis brevis and medius. 



12. Palmaris longus absent. 



13. Sxipinator longus absent. 



14. Obturator internus rises inside pelvis. 



