1898.] MYOLOGY or THE TERRESTRIAL CARKIVORA. 171 



when only three are present the one on the tibial side is missing. 

 Among the Telidse there are usually three — Felis leo (2), Felis 

 tir/ris (4), Felis ■pardus (5, 6), and Felis pardalis (8). In one 

 specimen of Felis leo (1) MacaHster noticed four, two coming from 

 the tendon of the third toe. In the Viverridte four lumbricales are 

 usually ^Y^esent—Cniptoprocta (13), Viverra (16), Genetta (22, 24), 

 Herpestes (30), and Cynictis (31). In the following, however, 

 there were only three— Fn'<?vra (17), Genetta (20), and Proteles 

 (32). In the HyEenidfe, with which as usual Proteles agrees, there 

 are never more than three lumbricales — Hycena striata (33, 34, 35) 

 and Hycena crocuta (37). Young and Eobinson state (XIV.) that 

 in Hycena striata (34) the second lumbrical joins the superficial 

 flexor of the second toe, and in Cuvier and Laurillard's plate (XVI.) 

 the same thing seems to occur. The Canidse have also three 

 lumbricales— CVe?iis /rt))wKam (39, 48), Cams aureus (50 a), and 

 Canis mesomelas (51). 



In the Procyonidie there are usually four lumbricales, but the tibial 

 one is small— ProCT/on lotor (63), Nasua rufa (70), Oercoleptes (72). 

 In Procyon lotor (64) there were only three. 



In the Mustelidffi there are also four as a rule — Mustela foina 

 (78), Ictonyx (84), Meles (86), Lutra (88, 90). In Mustela putorius 

 (77) and Lutra cinerea (93) the tibial one was absent. 



Tibialis 2)osticits. —Th\s rises from the posterior surface of the 

 tibia below the popliteiis and also, sometimes, from a little of the 

 upper part of the back of the fibula ; the tendon is very feeble 

 and is inserted into the navicular as a rule, but also into the cunei- 

 forms and bases of the metatarsals. It is present in all the 

 Fehda; and Viverridse— i^eZzs leo (1), Fells tigris (4), Felis p>ardus 

 (6), Felis pardalis (8), Fdis ccttus (9), Gryptoprocta (13), Viverra 

 (16, 17), Viverricula (19), Genetta (20, 24), Paradoxurus (25, 26), 

 Herpestes (29, 30), Cynictis (31) (very small), and Proteles (32). 

 In the Hy^nidse the muscle may or may not be present ; it was 

 absent in one specimen of Hycma striata (33), but present in 

 another (36), while in Hycena crocuta (37) it was absent. In 

 the Canidte, if the muscle is present at all, it is so feebly developed 

 as to require the greatest care to make it out. Haughton (XVIII.) 

 says that it was absent in two Irish Terriers (41 and another) 

 and a Greyhound (42), while in a Dingo (49) it only weighed 

 0-01 oz. av. In the Dogs which we dissected (39, 40) we failed to 

 find any trace of it, but in the following it was present although 

 extremely small : 43, 44, 45, 46, 48. In Qanis aureus (50, 50 a), 

 Canis mesomelas (51), and Canis lacjopus (53), traces of it were 

 found. 



In the Ursidse (58, 59) and Procyonidse — Procyon lotor (63, 64, 

 65), ISasua (68, 69), Cercoleptes (72, 73, 74)— it was present, and in 

 Procyon lotor (63) a sesamoid cartilage was found in the tendon 

 where it passed under (plantar to) the short plantar _ ligament. 

 Among the Mustelidse the tibiahs posticus was present in Gcdictis 

 vittata (75), Gcdictis barhara (76), Mustela putorius (77), Mustela 

 foina (79), Ictonyx libyca (84), Meles (85, 86), and Lutra (88, 93). 



