PLATE XXXIII. 



Class PISCE S continued. 

 THE SKATE continued. 



FIG. 1. SYSTEMS OF THE EFFERENT BRANCHIAL VESSELS AND THE DORSAL 

 AORTA : VENTRAL VIEW, x . 



e.^-e. 9 efferent branchial arteries: h. hyoidean artery: c. common 

 carotid artery : e. external carotid artery ; i. internal carotid 

 artery : /. foramen in the base of the skull : s. subclavian 

 artery : h.b. hypobranchial artery ; cce. coeliac artery : d. 

 duodenal artery : h. hepatic artery : g. gastric artery : s. m. 

 superior mesenteric artery : i. intestinal artery : p. pancreatic 

 arteries : sp. splenic artery : d. a. dorsal aorta : g.a. arteries to 

 the oviducts in the female : i. m. inferior mesenteric artery : 

 sp. spermatic artery in the male : r. renal arteries : il. iliac 

 artery : c. caudal artery. 



FIG. 2. EELATION OF THE RIGHT HYPOBRANCHIAL ARTERY TO THE SHOULDER 

 GIRDLE, x 1. 



s. subclavian artery : h. hypobranchial artery. 



FIG. 3. HEART, AFFERENT BRANCHIAL VESSELS AND HYPOBRANCHIAL ARTERY : 

 VENTRAL VIEW, x 1. 



a. auricle : v. ventricle : s. subclavian artery : Tib. hypobranchial 

 artery. 



FIG. 4. HEART, AFFERENT AND EFFERENT BRANCHIAL VESSELS : VIEW FROM 

 THE LEFT SIDE, x \. 



a. c. anterior cardinal vein : c. posterior cardinal vein : &. brachial 

 vein : h. s. hepatic sinus : i. inferior jugular vein : s. c. sinus 

 of Cuvier : s. v. sinus venosus : a. auricle : v. ventricle : 

 c. a. conus arteriosus : v. a. ventral aorta, giving off posterior 

 and anterior innominate arteries : a. 1 -a. 6 afferent branchial 

 vessels: e. l -e. 9 efferent branchial vessels: liy. hyoidean 

 artery : c. c. common carotid : d. dorsal aorta : s. a. subclavian 

 artery : h. hypobranchial artery. 



