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Show 1897.] MYOLOGY OF THE TERRESTRIAL CARNIVORA. 38^ Procyon lotor (53) 3-7 C. V. 1-7 ribs. ,i (54) 2-7 „ 1-7 „ Nasua (XXXIX.) 1-7 „ 1-9 „ Cercoleptes caudlvolvus (61). . 2-7 „ 1-8 ,, (62).. 2-7 „ 1-9 „ Gcdictis harbara (64) 4-7 „ 1-8 ,, Mustela putorius (65) 3-7 „ 3 (?)-6„ „ foina (66) 2-7 „ 1-8 „ „. (67) 3-7 „ 1-8 „ Ictonyx lyhica (70) 3-7 ,, 1-8 „ Meles taxus (72) 3-7 „ 1-8 „ Lutra vulgaris (74) 3-7 „ 1-7 „ „ (76)........ 2-7 „ 1-7 „ „ (79) 2-7 „ 1-7 „ „ cinerea (78) 2-7 „ 1-7 „ From this list it would appear that in the Felidae and Ursidae the costal attachment is most extensive, while in the Mustelidae it is least so. Deltoid.-This muscle consists of the usual three parts-clavicular, acromial, and spinous. The former blends with the ventral portion of the trapezius to form the cephalo-humeral or levator humeri, and is inserted into the lower half of the humerus or the bones of the forearm. In the Felidae the insertion seems to be into the forearm, at least this is the case in F. leo (1 a, 2) and F. catus (6). Among the Viverridae the insertion is also into the forearm in Cryptoprocta (10), V. civetta (13), Genetta (17, 18), and Herpestes (24). In Young's specimen of V. civetta (VIII.) the muscle was inserted into the lower end of the humerus. In Proteles (25) the insertion is also into the forearm. Among the Hyaenidae the muscle is inserted into the humerus in H. striata (26) and II. brunnea (30), into the forearm in H. striata (28). Among the Canidae it goes to the humerus in Canis familiaris (31), to the forearm in Lycaon pictus (44). In the Ursidae its insertion is into the humerus in U. marltlmus (45) and U. americanus (49, 52). Among the Procyonidae it goes to the humerus in P. lotor (53, 54) and Cercoleptes (61). In the Mustelidae it is also usually inserted into the humerus ; this is the case in Gallctls harbara (64), Mustela putorius (65), M. foina (67), Ictonyx zorilla (69), Lutra vulgaris (74, 79), and Lutra cinerea (78). In Ictonyx lyhica (70) the insertion is into the lower end of the humerus as well as into the forearm bones. From this it will be seen that in the Felidae and Viverridae the normal insertion of the first part of the deltoid or cephalo-humeral is into the forearm. In the Ursidae, Procyonidae, and Mustelidae it is into the lower end of the humerus, while in the Canidae and Hyaenidae it may go into either. The acromial and spinous parts of the deltoid are inserted into the middle of the humerus, the acromial lowest, the spinous just above and deep to it. |