388 BB. B. C. A. WTNBLE AXB MB. F. G, BABSONS OK THE [Apr. 6, 



In the Ursidse it is more oiten present than not. In the 

 Mustelidae it is not only present but is quite a separate slip. 



Subclavms.- — This is a very small muscle rising from the inner 

 end of the first rib and inserted into the spicular clavicle. We 

 have only records of it in Viverra civetta (12) and Genetta (16, 18). 

 It never seems to occur outside the Viverridse, though from its 

 insignificance it might easily be overlooked. The claviculo-scapu- 

 laris, which is such a distinguishing feature of Hystricomorphine 

 Eodents (XLI.), is never found in Carnivora. 



Levator amjuli scapulce and Serratiis magnus. — These two 

 muscles, as in liodents, form one continuous plane rising from a 

 large number of the posterior tubercles of the cervical transverse 

 processes and from a large number of the anterior ribs (see fig. 6, 

 p. 382). The latter origins interdigitate with the scalenus longus 

 and the external oblique. Although the muscle forms one sheet it 

 is ■well to emphasize the distinction between the two parts, since 

 the levator anguli scapulae is supplied by the cervical nerves and 

 the serratus magnus by the posterior thoracic, or nerve of Bell. 

 Meckel (XXXIX.) speaks of the levator anguli scapulae as a 

 separate muscle coming from the atlas in the Dog, Badger, Otter, 

 and Mai'ten. In the Dog we have no other records of any origin 

 from the atlas and regard Meckel's specimen as a variation, but in 

 the other three animals that which he describes as the levator 

 anguli scapulae is undoubtedly the rhomboideus profundus. The 

 insertion of the combined muscles is into the dorsal or vertebral 

 part of the subscapular fossa of the scapula, the attachment being 

 much more strongly marked anteriorly than posteriorly. 



The following table gives the exact origins in various animals : — 



Felis leoila) 2-7 C. V. 1-9 ribs. 



„ catus (6) 3-7 „ 1-10 „ 



„ „ (7) 3-7 „ 1-10 „ 



Cyncelunis jubatus (9) ? „ 1-10 ,, 



Cryptoprocta ferox{\0) .... 3-7 „ 1-8 „ 



Viverra civetta (12) 2-7 „ 1-8 „ 



„ (13) 4-7 „ 1-7 „ 



„ (14) 3-7 „ 1-8 „ 



Genetta tir/rina (16) 4-7 ., 1-9 „ 



„ ■ „ .(17). 2-7 „ 1-6 „ 



„ vulgaris (18) 3-7 ,, 1-7 ,. 



Herpestes griseus (24) 1-7 ,, 1-8 „ 



Proteles cri status (25) 1-7 ., 1-8 „ 



Hycena striata (26 ) 3-7 „ 1-8 „ 



„ (27) 2-7 „ 1-8 „ 



„ (28) 2-7 „ 1-8 „ 



,, crocuia (29) 3-7 „ 1-8 „ 



Canis famiJiaris (31) 4-7 „ 1-7 „ 



„ ■ .,, (39) ? „ 1-7 „ 



Ursus maritimus (45) 3-7 „ 1-10 ,, 



„ americanus (50) 2-7 „ 1-10 „ 



