,396 UK. B. C. A. WIKDLE AKD MR. T. G. PARSONS ON THE [Apr. 6, 



3.5, 3(i, XLIV.), in 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 absent, but was found in C. lagopus (42). 

 Among the TJrsidie we have records of five specimens : in three of 

 these (46, 51, 52) the external muscle was present, though closely 

 connected with the flexor suWimis ; 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 

 j\\isna (60) the palmaris longus is large, but there is apparently no 



Fie. 9. 



/,S.O/a __ 



A. CfiffD 



Manus of Genetta vulgarh, 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 Mustelidse the internus alone is 

 present in Galictis barbara (64), while in Mustela putorius (65), 

 M. foina (66), Ictonyx zorilla (69), /. libyca (70), and four specimens 

 of Lutra vtilgaris (74, 75, 76, 79) a large externus alone was found. 

 In Lutj-a 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 relidsB and Hyaenidfe always have a palmaris longus externus 

 only. The Mustelidae usually have the same arrangement. The 

 Yiverridae are very variable. In the Canidae the palmaris longus 



