540 MESSES. BEDDARD AND MITCHELL ON THE [June 19, 



Intertransversales. — These muscles were obvious all the way 

 along from the ilium to the neck. 



Obliqui (transverso-spinales).- — They are clearly differentiated 

 only from the last to the Tilth cervical. They are large fleshy 

 digitations arising from the transverse processes, and inserted on 

 to the lateral face of the spinous processes next but one in front. 



Rectus capitis antic"* major. — It arises all along the neck from 

 the hvpapophyses and from iascia; about the middle of the neck 

 it grades into the longus colli, from a slip of which it first arises 

 about the level of the seventh Tertebra. Its broad fleshy insertion 

 is tendinous on the outside, is fused with its fellow in the middle 

 line, and extends for about a quarter of an inch on the anterior 

 outer edge of the basi-occipital. 



Rectus capitis anticus minor. — This is a fleshy broad muscle 

 underlying the preceding. Its origin is fleshy and continuous 

 from first four vertebrae. It has a broad fleshy insertion to the 

 extreme outer posterior face of the ridge behind the meatus 

 auditorius. 



Longus colli. — It arises from the middle of the centrum of the 

 second dorsal vertebra? tendinously, and then by a series of tendons 

 from each vertebra up to the overlap of the rectus capitis. It is 

 inserted by a series of slips to the vertebras in front of its origins. 



Interttiberculares. — These are present, apparently normal. 



Interappendiculares costarum. — The first arises from the end of 

 the last free rib, and runs backwards and downwards to the lateral 

 anterior process of the sternum ; the second from the junction of 

 the sternal and costal parts of the first complete rib, it shortly 

 fuses with the third, which arises from the costal part of the next 

 rib. These two are then inserted together. The fourth arises from 

 the third, fourth, and fifth costal ribs and from the space between 

 them, and is inserted immediately behind the others. The 

 posterior ones are smaller. 



Intercostales extemi. — These are confined to the whole of the 

 costal part ; the fibres run from above in front and downwards 

 towards the caudal end. 



Intercostales interiii. — These are confined to the lower half of 

 the costal ribs, and are chiefly tendinous. 



Costi-sternales. — Four slips arising tendinously from the sternal 

 ribs, and inserted fleshy to the sternum. 



Costo-sternalis e.rtemus. — The peculiar muscle to which we have 

 given this name apparently replaces physiologically the uncinate 

 processes, as its broad ribbon-like belly runs diagonally across the 

 outer surface cf the ribs. It arises by a xery thin flat tendon 

 from the third, fourth, and fifth ribs, and from the interspaces 

 between them. It is inserted to the costal edge of the sternum 

 half an inch from the posterior end. 



Head-Muscles. 



Dermo-temporalis. — Arising by a narrow but fleshy head from 

 about half an inch behind and above temporal fossa, contiguous 



