OCR Text |
Show 396 DR. B. C A. WINDLE AND MR. F. G. PARSONS ON THE [Apr. 6, 35, 36, XLIV.), iu one (34) a trace was found, while in the remaining two (37, 39) the externus was fairly well developed. In C. aureus (41) it was abseut, but was found in C. lagopus (42). Among the Ursidae w e have records of five specimens : in three of these (46, 51, 52) the external muscle was present, though closely connected with the flexor sublimis; in two (48, 49) it was absent altogether. In the Procyonidae there are four records of Procyon, in three of which (53, 54, 57) both the externus and internus were present; in the other (55) only the externus was found. In Nasua (60) the palmaris longus is large, but there is apparently no Fiff. 9. FL.8R.DIU. -.{-PAL .LOHG. •P/Tl 'L. OHG. /*/T£ n*r. Manus of Genetta vulgaris, showing double palmaris longus and fl. br. dig. maniis. internus. In two specimens of Cercoleptes (61, 62) both externus and internus were present, and it was noticed that the latter was in close connection with the flexor carpi ulnaris and was supplied by the ulnar nerve. Among the Mustelidae the internus alone is present in Galictis harbara (64), while in Mustela putorius (65), M. folna (66), Ictonyx zorilla (69), I. llbyca (70), and four specimens of Lutra vulgaris (74, 75, 76, 79) a large externus alone was found. In Lutra cinerea (78) both externus and internus were present, the latter being regarded by Macalister as part of the flexor carpi ulnaris. The summing up of the above results is as follows:- The Felidae and Hyaenidae always have a palmaris longus externus only. The Mustelidae usually have the same arrangement. The Viverridae are very variable. In the Canidae the palmaris longus |