323 



/.. 



Fig. 244. — A female dogfish in which the abdominal and pericardial cavities 

 have been opened from the ventral side, and the viscera somewhat displaced. 

 The pericardium has been opened slightly to the left of the middle line, and 

 the right lobe of the liver has been cut away. 



ab.p., Abdominal pores ; b., bile duct ; c, cardiac limb of stomach year., caudal artery ; c.v., caudal vein ; 

 d., bursa entiana ; g.b., portion of gall bladder appearing on surface of left lobe of liver in which it is 

 embedded ; i., intestine ; i.a., intestinal branch of anterior mesenteric artery ; /., lienogastrio artery ; 

 not., notochord ; ov., ovary ; p., portal vein lying beside hepatic artery ; ps., pancreas with duct opening 

 into intestine ; py., pyloric limb of stomach ; r., rectum, between hinder ends of oviducts, with rectal 

 gland (r.gl.) attached to its dorsal side ; f.l., suspensory hgament of liver, with internal opening of 

 oviducts ; sh., right shell gland on course of right oviduct ; sp., spleen ; sp.c, spinal cord ; ur.p., 

 urinary papilla ; v., branch of portal vein formed by junction of intestinal and splenic veins. 



Besides the above, note — nostrils ; oronasal grooves ; mouth ; pectoral and pelvic fins ; pericardial and 

 abdominal cavities ; heart, consisting of sinus venosus (behind), ventricle, auricle (showing at sides of 

 ventricle), and conus ; cloaca, and transverse section of tail, showing at the sides the myomeres, 

 above the anterior dorsal fin, and in the middle the cartilage of the backbone enclosuig spinal cord, 

 notochord, iind blood vessels. 



