OCR Text |
Show 1010 MESSRS. B. C. A. WINDLE AND F. G. PARSONS ON [Dec. 19, 13. The palmaris longus is distinct. 14. The flexor sublimis digitorum is absent in Bradgpus, feeble in Cholcepus. 15. The flexor profundus digitorum has no palmar sesamoid. 16. The pronator quadratus is very small. 17. The supinator longus is usually double. 18. The extensor minimi digiti becomes an extensor brevis digitorum and often rises from the carpus or metacarpus. 19. The extensor ossis metacarpi pollicis is inserted into the trapezium. 20. The supinator brevis is inserted into the upper third of the radius. Sometimes it is bilaminar in Cholcepus. 21. The caudo-femoralis is fused with ectogluteus. 22. Pectineus is sometimes double in Bradypus. 23. The adductor cruris (gracilis) is double. 24. The semitendinosus has only an ischial head. 25. The flexor cruris lateralis (biceps) always has the short femoral head. 26. The tenuissimus is absent. 27. The extensor longus digitorum has a condylar origin and is inserted into the metacarpal bones. 28. The extensor brevis digitorum has a fibular origin in Bradypus, tarsal in Cholcepus. 29. The peroneus longus never runs across the sole, sometimes it has a femoral origin, sometimes the muscle is absent altogether. 30. The peroneus brevis is sometimes absent. 31. The gastrocnemius has no fabellae. 32. The plantaris is often absent. 33. The flexor brevis digitorum rises from the calcaneum. 34. The tibialis posticus is single. 35. The accessorius pedis is present. MYRMECOPHAGIDCE. 1. The sterno-maxillaris is present. 2. The sterno-glossus is present. 3. The rectus thoracis lateralis is present. 4. The splenius colli is absent or very slightly developed. 5. The rhomboid has no occipital origin. 6. The subclavius is absent. 7. When there is a coraco-brachialis it is only the lono* heat? which is present. 8. The flexor brevis cubiti (brachialis anticus) does not rise from the neck of the humerus. 9. The extensor cubiti (triceps) has more than one scapular head. 10. The flexor carpi radialis reaches the metacarpus. 11. The palmaris longus is usually indistinct or absent. 12. The flexor sublimis digitorum has only one tendon. |