1891.] MR. F. E. BEDDARD ON HAPALEMUR GRISEUS. 459 



3. Latissimus dorsi from the posterior dorsal vertebrae, slightly 

 overlapped in front by the trapezius, and from the lumbar fascia : it 

 gives off a very decided sUp to the pectoralis, which is attached to 

 that muscle by a flat tendon. 



4. Dorso-epitrochlear arises from the latissimus dorsi just before 

 it becomes tendinous ; it is inserted by a broad thin tendon on to 

 the ulna for a space of g-f inch from the olecranon. 



5. Serratus magnus arises from the first 8 ribs and from the 

 cervical vertebrae ; it is attached to the posterior two-thirds of the 

 vertebral border of the scapula. 



6. Pectoralis major c^^nshi?, of two separable parts only : (1) a 

 clavicular portion from the sterno-clavicular articulation, and (2) a 

 pectoral portion from the sternum and from a few ribs behind the 

 sternum. 



I could find no trace of the second pectoral muscle, Pectoralis 

 minor. 



7. The Subclnvius passes from the first rib to tlie clavicle. 



8. Biceps. — This muscle is tw^o-headed : the long head arises by 

 a long flat tendon passing underneath an annular ligament ; the 

 second head arises in common with the coraco-brachialis longus and 

 is apparently fused with that muscle for some way. 



9. Coraeo-bi-achialis is also a doable muscle ; the part lying 

 behind the insertion of the teres major (the other part lies in front) 

 is very short and only reaches about one quarter way down the 

 insertion of the said muscle. 



10. Triceps has the usual three heads : the long head arises from 

 the lower border of the scapula and also from a fascia covering the 

 infia-spinatus ; the second head arises from the head of the humerus ; 

 the third from nearly the whole of the shaft of the humerus ; the 

 anterior part of this forms an almost distinct head, which appears 

 to correspond to that referred to by Messrs. Murie and Mivart as 

 the "fourth head." 



11. Bracliialis anticiis arises high up on the radial side of the 

 humerus and twists round to the other side, receiving fibres the 

 whole way. 



12. The Teres major is a large muscle, inserted as usual and 

 separately by a stout flat tendon. 



13. Teres minor is present, as in other Lemurs. 



14. Flexor sublimis digitorum. — This is a small muscle arising 

 f im the internal condyle of the humerus ; about halfway down the 



earm a thin tendon is given off which passes to the conjoined 

 deep flexor tendons ; later the tendon of this muscle splits into four, 

 which supply digits II. -V. The two middle tendons are the 

 thickest and are of equal size ; the two outer tendons are considerably 

 thinner, but also equisized. 



15. The Palmaris longus arises from the internal condyle; the 

 tendon is | of the length of the entire muscle. 



16. Flexor carpi ulnaris is not in any way remarkable. 



17. 18. The Flexor profundus digitorum and the Flexor longus 

 pollicis blend together before the wrist while yet muscular, though 



