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Show 494 PROF. ST.-GEORGE MIVART ON THE ALUROIDEA. [June 6, galea it is inserted into the large plate-like process of the radius, before described (fig. 2). The extensores carpi radiates longior et brevior and the supinator brevis are as in the Cat and Civet. The extensor communis digitorum supplies the four outer digits in the Hyaenas and Civet, as in the Genet and Cat. The extensor minimi digiti is substantially as in the Cat, and supplies the 3rd, 4th, and 5th digits in the Civet, but in the Hyaenas it only goes to the 4th and 5th 1. The extensor longus ulnaris is as in the Cat. The extensor ossis metacarpi poliicis is as in the Cat, save that its origin extends up inside the olecranon. It is recorded as arising from the olecranon in the Civet (but not in the Hyaenas), and as inserted into a sesamoid at the base of the first metacarpal according to Macalister", and exclusively into the metacarpal of the pollex according to M r . Young. The extensores indicis et secundii internodii poliicis are as in the Cat, save that their origin does not extend up to the olecranon. The extensor s. i. poliicis is wanting in the Hyaenas, but present in the Civet, where it goes to the pollex and index. The pronator teres is as in the Cat. In the Civet its insertion extends down to the lower end of the radius. It is shorter and more slender, relatively, in the Hyaenas. In Hemigalea it is inserted into the singular plate-like process of the radius. The palmaris longus is inserted into the palmar fascia, as in the Cat and Hyaenas. In the Civet it is said to be large (more or less double) and inserted into the pisiforme. It is much united with the muscle next to be noticed in Hyaenas and in the Cat. The flexor sublimis digitorum is not blended with the palmaris longus, but is very small, and takes origin from part of the tendon of the flexor profundus, as also in the Civet. It goes to the four outer digits ; and in Crocuta (where it seems yet more completely blended with the flexor profundus) it goes to the three middle digits3, the fifth being supplied by a minute separate muscle4; as also in the Civet, which Mr. Young (I.e. p. 172) compares with m y and Murie's "flexor brevis m a n u s " of Hyraxb. The flexor profundus digitorum arises by five bellies, three from the condyle, one from the radius (as in the Cat), and one from the ulna. It has four origins in the Civet-1. condylo-ulnar, 2. condylo-radial, 3. radial, and 4. ulnar. The flexor carpi ulnaris is as in the Cat, except that the two heads soon unite to form one belly. In the Civet the muscle is double, one part arising from the condyle and one from the olecra- 1 Also in the Genet in Cuvier's Planches, pl. 126. fig. 1 e'; and in the Hyfena, see pl. 129. fig. 1 e'. 2 Proc. Roy. Irish Acad. vol. i. 1869-74, p. 509. 3 P. Z. S. 1879, p. 99. 4 I n Hycena striata the accessory slips are altogether tendinous. 5 It arises in the Civet from the annular ligament, pisiforme, and tendon of palmaris longus. See also Cuvier's ' Planches,' pl. 126. fig. 2, K, cr. |