BLOOD-VASCULAR SYSTEM OK THE TILE-EISH. 



95 



The efferent pst uddbranchial vessel (fig. lf>. pi. i, and tigs. 1 and 6). The efferent 

 pseudobranchial or ophthalmic artery (/£), arising from the caudal or exposed surface 

 of the pseudobranch, leaves the latter at its ventromedial angle, and runs slightly 



Fig. 8.— Cranial portion of the arterial system in the sculpin (Myoxocephalw octodecimtpino- 

 mt). Ventral view, natural size. On the right side the ventral ends of the efferent 

 branehial arteries and their branches are reflected 80 as to bring them into one plane. 



craniad and mesad, piercing the m. adductor hyomandibularis; thence it continues 

 dorsad to a point just cranial and ventral to the origin of the recti eye muscles, where 

 it sends oft' a stout branch (15) which anastomoses with its fellow of the opposite side 



