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Show 1897.] MYOLOGY OF THE TERRESTRIAL CARNIVORA. 407 smallest. It is satisfactory to find that the same conclusions were arrived at by one of the authors of this paper in a former communication, founded on the study of a smaller number of animals (XLV.). Among the Felidae F. leo and F. catus (XLV.) have the normal arrangement, though Mivart (I.) makes no mention of an adductor indicis in the former animal. Iu the Viverridae, Cryptoprocta (10), V. civetta (12), Genetta (18), Paradoxurus (19, 20), Herpestes nepalensis (23), and II. griseus (2-1) were normal. Proteles (25) had only an adductor to the index and minimus. Among the Hyaenidae, H. crocuta (29) had adductors to the middle and little fingers, while H. striata (26, 28) had them to the index and minimus. Among the Canidae, the muscles are normal in C. familiaris (31, 39, XLV.), but the adductor pollicis is rudimentary and is, according to Meckel (XXXIX.), merely aponeurotic (see fig. 11, p. 406). C. dingo (XLVI.) agrees with the other Dogs recorded. but in C. aureus (XLV.) adductors of the pollex, annularis, and minimus were found. Among the Ursidae the muscles were normal in U. maritimus (46) and U. arctos (47). In Kelley's specimen of U. maritimus (45) the left-hand was normal, but in the right an adductor annularis was found. In the Procyonidae, P. lotor (53), P. cancrivorus (57), Nasua (58), and Cercoleptes (61, 62) were normal. In the Mustelidae, M.putorius(65),Ictonyx llbyca (70), Meles (XLV.), and Lutra (74, XLV.) were normal, though Young1 describes an adductor annularis in addition in the last two animals. In Gallctls vittata (63) only adductors to the pollex and minimus were found. The Second Layer of Hand-muscles.- Cunningham and Young have described the second layer of the hand as consisting of a series of double-headed short flexors wdiich must not be confounded with the flexor brevis digitorum manus. These muscles were present in all five digits of all the hands we examined. The Third Layer of Hand-muscles.-This layer, according to Cunningham, consists of a series of dorsal interosseous muscles which abduct the digits, acting from the line of the third metacarpal. Of these, we saw three in Genetta vulgaris (18) and Herpestes griseus (24), and Young describes some in Viverra civetta (12). W e specially looked for and failed to find them in Canis('61), Ictonyx (70), and Lutra (74). In no other carnivorous animal have we found them nor have we come across any further records of them, but we are quite ready to admit that, unless specially looked for, they are easily missed. BIBLIOGRAPHY. I. MIVART.-'The Cat.' London, J. Murray, 1881. 11. STRAUS-DURCKHEIM.-' Anatomie descriptive et comparative du Chat.' T. ii., 1845. III. H A U G H T O N . - " Muscles of the Lion." P. R. I. A. vol. ix. p. 85. IV. Ross.- " Fells jubata." P. R, I. A. ser. 2, vol. iii. p. 23. 1 Journ. Anat. vol. xiv. p. 149. |
