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Show 1882.] PROF. ST.-GEORGE MIVART ON THE JELUROIDEA. 493 The rhomboideus arises (as in the Civet) from the 3rd cervical to the 4th dorsal vertebra; in Crocuta from the 5th cervical to the 4th dorsal. There is no rhomboideus capitis, thus differing from the Cat and agreeing with Crocuta, though, according to Meckel, there is one in Hyana striata. The serratus magnus arises in the Cat from the first ten ribs, in the Genet from the first nine, in Crocuta from the first eight, and in the Civet from the first seven or eight. The levator anguli scapula arises in the Cat from the last five cervical vertebrae, in the Genet and Civet from the last four \ in Crocuta from the last five cervical and first dorsal vertebrae. It is enormously thick in the Hyaenas. The levator clavicula is as in the Cat; also in Crocuta2. The latissimus dorsi I found to arise as in the Cat; while in the Civet it extends from the 5th dorsal to the 3rd lumbar vertebra. In the Hyaenas it arises from the posterior eleven dorsal spines and the lumbar aponeurosis. There is but one dorso-epitrochlear, which corresponds to my internal dorso-epitrochlear of the Cat. There is but one in the Civet and Hyaenas. The deltoid, infraspinatus, and teres minor are as in the Cat. The subscapularis and infraspinatus are as in the Cat. The supraspinatus only differs from that of the Cat in that, as in the Civet, it is obscurely separable into two portions, and in that it projects less beyond the margin of the bone of the scapula. The teres major in the Genet, Civet, and Hyaenas is inserted into the tendon of the latissimus dorsi, rather than into the humerus in common with it as in the Cat. The triceps of the Genet is substantially like that of the Cat, except that its fifth head of origin extends higher up the humerus. In Crocuta and Viverra civetta there are but four heads. The anconeus is like that of the Cat, except that it is not larger than is the fifth head of the triceps. There is a short flat anconeus in Crocuta. The biceps in the Genet (as in the Civet, the Cat, and the Hvsenas) arises by a single head from the margin of the glenoid surface, and is inserted into the tubercle of the radius. The coracobrachialis is as in the Cat, save that it (as also in the Civet) partly unites with the tendon of the latissimus dorsi and adjacent part of the triceps. It is also single in the Hyaenas. The brachialis anticus is as in the Cat, Civet, and Hyaenas. The supinator longus arises much lower down the humerus than in the Cat. It is inserted into the radius, but sends (as also in the Civet) a slip to the dorsal carpal ligament. It is absent in the Hyaenas, or only represented by a tendinous vestiges. In Hemi- 1 Mr. Young says from the last six (Journ. of Anat. & Phys. vol. xiv. p. 169). 2 Also in the Ichneumon, where it is said by Meckel (Anat. Comp, vol. vi p 238) to perforate the trapezius. 3 P.Z.S. 1879, p. 98. |