481 



d, M. inter costalis caudalis inferior , c, 1*70 oz. 



Origin from the inner surface of the innominate bone, marked Pig. 27 

 (int. cost. caud. inf.), and from the adjoining under surface of the costal 

 processes of the sacrum ; Insertion, into the under surfaces of the caudal 

 costal processes (1 — 9) — (flexor of the caudal spine). 



Fig. 27. 



III. Intertransverses! Muscles. 



a, M. intertransversalis caudalis superior, c', . . . . 2-82 oz. 



„ c, . . . . 3*50 oz. 



From the tips of the upper transverse processes of the caudal verte- 

 brae (4 — 17, &c.) ; into the outer sides of the transverse processes of 

 the last dorsal, and all the lumbar, sacral, and caudal vertebrae. This 

 series of muscles fills the space between the superior transverse and 

 costal processes in the tail. In the sacral and lumbar region it lies 

 under the gl. maximus and inter costalis lumlalis — (extensor of lumbar 

 and caudal spine). 



b, M. intertransversalis lumlalis superior, c', . . . . 0*56 oz, 



joining the superior transverse processes of the lumbar vertebrae — (ex- 

 tensor of lumbar spine). 



c, 3f. intertransversalis caudalis inferior, e', . . . . 1*93 oz. 



From the inferior transverse processes (haemapophyses) of all the caudal 

 vertebrae ; into the bodies of the sacral vertebrae, and sides of inferior 

 transverse processes of caudal vertebrae. This series is separated from 

 the intercostalis caudalis inferior by the large nerve of the inferior part 

 of tail, which supplies both — (flexor of caudal spine). 



d, M. intertransversalis lumlalis inferior (psoas parvus). 



„ a, 3*70 oz. 



b, . . . 2-14> 



c, . . . 1-51} . . 1-74 oz. 

 „ c', . . . 1-58* 



This muscle takes its origin from the spine of the pubis, and is in- 

 serted into the bodies of the vertebrae as high up as the diaphragm— 

 (flexor of lumbar spine). 



