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Show 1897.] MYOLOGY OF THE TERRESTRIAL CARNIVORA. 397 is usually absent altogether. In the Ursidae it is often so. In the Procyonidae both p. 1. externus and internus are usually present. Flexor sublimis digitorum.-In looking through the literature of carnivorous myology one finds this muscle sometimes described as rising from the internal condyle and giving slips to the flexor profundus, at other times as coming off from the surface of the profundus itself. The method of description seems to depend chiefly on whether the flexor sublimis exceeds iu size the condylar origins of the profundus or vice versa. The description which seems to us most applicable to the whole order is that the sublimis rises in common with the condylo-ulnaris head of the profundus from the internal condyle. The insertion is, as usual, into the middle phalanges of a variable number of digits; before its attachment a loop passes round the subjacent profundus tendon in exactly the same way that has been already noticed in Rodents (XLI. p. 266): the sublimis tendon then splits and allows the profundus to pass through it. The number of digits into which the tendons of the sublimis are inserted varies a good deal, aud seems to bear no relation to the position of the animals in the order. By far the commonest arrangement is to find the tendons inserted into the second, third, and fourth digits ; this occurs in the following animals :-Viverra civetta (12), Cryptoprocta (11), Genetta (17), Herpestes (24), Proteles (25), Hycena striata (27), H. crocuta (29), Canis familiaris (39), Procyon lotor (53, 55), P. cancrlvorus (57), Nasua (60), Cercoleptes (61), Mustela putorius (65), M. foina (66), Ictonyx zorilla (69), I. libyca (70), and Lutra cinerea (78). In the following animals tendons go to the first, second, third, and fourth digits, the pollex being counted as the first; Ursus americanus (48), Procyon lotor (54), and Nasua (58). In Ursus americanus (49) and Felis catus (6) slips are given to all five digits. In Lutra (76), Genetta (16), and Canis (31) there were tendons to all the digits except the thumb. In Cryptoprocta (10), L'rsus marltlmus (45), Meles (72), and Lutra (74) the muscle only gave off two tendons to the third aud fourth digits respectively. In Hycena striata (26) tendons passed to the third, fourth, and fifth digits. Flexor carpi ulnaris.-This muscle consists of two parts, condylo-pisiform and olecrano-pisiform, the former rising from the internal condyle, the latter from the olecranon process. In certain cases these two heads are quite distinct from their origin to their insertion, but more usually they unite in the forearm, leaving a gap for the ulnar nerve to pass between them as in Man. Laurillard (XXII.) bas suggested that possibly the double arrangement is characteristic of young animals, the single of older ones, but v\e have not come across any facts which bear out this theory. Among the Felidae the two parts join in the upper part of the forearm in Felis catus (6), while in F. leo (1) (aet. 8 years) and F. tigrls (3) they unite in the lower quarter. In the Viverridae the two parts remained distinct until their insertion in Macalister's and Devis's specimens of Viverra civetta (13,14), in Cryptopracta |