494 Mr. J. Wood on Variations in Human Myology, [June 18, 



scapular (marked b in the above-mentioned figure), which has again been met 

 with in the male subject (No. 4) of this year's series. On the left shoulder 

 was found a distinct band of muscular fibres, nearly an inch in width, 

 arising just outside of, and in connexion with, the omohyoid, from the base 

 of the coracoid process, and inserted into the clavicle with the outermost 

 fibres of the subclavius muscle. It has been named by the author the 

 Scapulo-clavicular muscle, as it seems clearly to be the homologue of the 

 muscle described and figured by Cuvier and Laurillard, under the name of 

 the " scapulo-clavien,'' in the Rat-mole of the Cape, and the Bidelphys mar- 

 supialis or Sarigue (plates 216 & 195) . The author has found the muscle 

 also well marked, separate, and distinct in the Norway Rat {3Ius decu- 

 manus)y as well as in the Guineapig, and in a less distinct form in the 

 Rabbit. The muscle is noted in the Table, in column 40, amon^- the siuo;le 

 specimens. 



12. Latissimus dorsi. — In the male (No. 9) was a detached slip from 

 the ninth intercostal fascia of the right side, which joined this muscle high 

 up near its insertion. In the female (No. 29) was a musculo-tendinous 

 slip, passing from the left latissimus across the axillary vessels, and inserted 

 into the fascia covering the biceps muscle. It seemed to be a formation 

 between the ordinary " Achselbogen " and a dorso-epitroMear muscle. A 

 similar slip, reaching only to the fascia covering the coraco-brachialis, was 

 present on both sides in No. 32. 



Out of 102 subjects, viz. 68 males and 34 females, a dorso-epitrochlear 

 slip of muscular fibres has been found by the author in 5 ; 3 of which were 

 males, and 2 females. In 2 of the males the slip was lost on or joined the 

 scapular head of the triceps muscle. In the third male it was lost on the 

 fascia covering the coraco-brachialis. All these were found in both arms. 

 Of the 2 females, one was found on both sides, and ended on the fascia 

 covering the coraco-brachialis, and the other on the left side only, and 

 ended in the fascia covering the short head of the biceps. In 6 of the 102 

 subjects the latissimus gave off a considerable slip to the insertion of the 

 pectoralis major {Achselbogen) ; 3 were in males, 2 on both sides, and 1 

 on the left side only ; and 3 in females, 2 on both sides, and 1 on the left 

 only. In 3 subjects the upper costal fibres of the latissimus were con- 

 nected with a broad muscular slip arising with them, which, after crossing 

 the axilla upwards and outwards, were inserted with the pectoralis minor 

 into the coracoid process, or into the fascia of the coracoid muscles just 

 below it {chondro- coracoid). Two of these were in males, one on the right 

 side only (a similar slip on the left side joined the pectoralis major), and 

 the other on the left only. The third was found in a female subject on 

 the left side only. 



13. Coraco-brachialis. — In 2 males (Nos. 1 & 10) and 3 females 

 (Nos. 21, 23, & 24) this muscle presented an entirely double formation. 

 The upper slip was inserted into the usual place ; the lower passed down 

 further, to be connected with the internal brachial ligament or intermus- 



