166 DE. B. C. a/wINDLE AND MU. F. G, PAESONS ON THE [Mar. 1, 



(XXVI.) failed to find it. Among the Mustelidae it was found in 

 every case in which it was looked for: — Galictis (75), Mustela 

 foina (78, 79), Ictonyx lihyca (84), Meles (85, 86), and Lulra 

 (88, 93). 



Fig. 3. 



EXT- PRO 



IXT-BREV-OIG. 

 PER-QUm-UIG. 



TIB-A.NT 



Muscles of liind foot of Herpcstes (dorsal view). 



Extensor longus digitorum. — This muscle has the typical mam- 

 malian arrangement : it rises from the front of the outer condyle 

 of the femur by a tendon which passes through the knee-joint ; on 

 reaching the leg it expands into a muscular belly, which in the 

 lower third again becomes tendinous and passes through a strong 

 fibrous loop, which binds it to the calcaneum. After this a slip is 

 given off for the middle and distal phalanges of each of the four 

 outer toes. The above description is very constant for the Carni- 

 vora. Occasionally the fleshy belly may be more or less divided 

 into two, as in Ursus mnericanus (59) and Meclvcl's specimen of 

 Hycena striata (34), though this was not noticed in other Hyaenas 

 (33, 35, 36). Occasionally one or more of the four tendons may 

 be wanting; in Procyon cancrivorus (67) and Hycena crocuta (37) it 

 is the tendon to the fifth toe which is absent, but in one of Allen's 

 Eacoons (65) the only tendons present were those to the second and 

 fifth toes. 



