88 
PEOFESSOE WOOD ON THE NECK- AND SHOULDEE-MUSCLES. 
constitutes the opposite pole of the line of departure here traced from the occipito-sca- 
pular muscle. 
Levator claviculce Muscle. — In my paper read before the Royal Society in 1864, I 
furnished a description and drawings of levator claviculce muscle which I had found in 
two male subjects, on both sides. 
In Man it usually assumes, as in animals, the form of a flat ribbon-shaped muscle. It 
is commonly about an inch to an inch and a half wide, arising fleshy by two or more 
digitations from the first and second, second and third, or third and fourth cervical 
transverse processes, in common with and in front of the origin of the levator anguli 
scapulce. 
Crossing the posterior triangle (Plate IX. fig. 8, e) obliquely downwards, outwards, 
and forwards, it is inserted tendino-fleshy into the middle or outer third of the clavicle 
to the median side of, or behind, the fibres of insertion of the trapezius (T). We have 
found this muscle in 4 males out of 131, and in 1 female out of 71, in a total number 
of 202 subjects. In three it was on both sides, and in two on the left side only. In 
one other male subject it was found to arise from the third cervical transverse process 
on the left side only, and, just failing to reach the clavicle, was inserted into the fascia 
immediately behind it, covering the axillary surface of the upper digitation of the ser- 
ratus magnus muscle and the plexus of nerves lying upon it. This gives an average of 
about 3 per cent, in which this muscle has been found ; in half on both sides, and in 
the other half on the left side only. 
In looking up the bibliography of this subject, I have found that in 1813 W. G. 
Kelch described that he had seen, on the right side of a male subject, in whom both 
the omoJiyoids were wanting, a slip of muscle, a quarter of an inch wide, attached above 
to the sixth cervical transverse process, and below to the back edge of the clavicle near 
the acromial end (Beitrage zur pathologischen Anatomie, Berlin, 1813, xxiv. S. 32). 
This is quoted by F. G. Theile, who also describes that he saw on the right side of a male 
a muscle, 1 inch wide, attached above to the fourth and fifth cervical tranverse processes, 
between the rectus capitis anticus major and the posterior scalenus , and below to the 
middle of the clavicle at its upper border. It was considered by him as a variety of the 
anterior scalenus muscle (Traite de Myologie, in Sommerring’s Encyclopedie Anatomique, 
traduit par J. L. Jourdain - , 1843, p. 153). In 1846 Macwhinnie described this muscle 
as a variety of the levator anguli scapulae , arising from the first cervical transverse pro- 
cess, and inserted, in one case, into the outer end of the clavicle with the trapezius , 
and, in a second instance, into the middle of the clavicle close to the sterno-cleido-mas - 
toid (London Medical Gazette, January 30th, 1846, p. 194). 
In 1847 Professor W. Gruber, of St. Petersburg, described a muscle attached above 
to the second cervical transverse process, and below to the middle of the hinder border 
of the clavicle (in two subjects out of 40), as a variety of the trapezius (Yier Abhand- 
lungen, S. 22). This observation is quoted by Henle in his last edition of the Hand- 
buch (Muskellehre, S. 1101 with the remark that it is doubtful whether it is to be con- 
