SCYLLIUM CANICULA 



241 



oc 



A.C. 



c. 



FIG. 78. Venous system of Scyllium canicula. 'After O'Donoghue. 

 Diagram showing the general disposition of the main venous trunks in Scyllium canicula. 

 The more dorsally situated vessels are stippled and the more ventral ones black. For the sake 

 of clearness, the ventral cutaneous vein has been omitted. A.C., anterior cerebral vein ; A.Ca., 

 anterior cardinal sinus; Au., auricle; B., brachial vein; Ba., basipterygium ; C., caudal vein; 

 Cl., cloacal vein ; D.C., ductus Cuvieri ; F., femoral vein ; GSz., 2nd gill-cleft ; H., hyoidean 

 sinus; U.S., hepatic sinus ; /./., inferior jugular sinus ; //., iliac vein ; I.M., intestino-mesenteric 

 vein ; I.O., inter-orbital vein ; K., caudal mesonephros ; L.A., lateral abdominal vein ; L.C., 

 lateral cutaneous vein; N.S., nasal sinus ; O.C., olfactory capsule ; O.N., orbito-nasal vein; Or., 

 orbital sinus ; P. An., pelvic anastomosis between the two L.A. ; P.C., posterior cerebral vein; 

 P.Ca., posterior cardinal sinus ; Pe., pectoral fin ; PL, pelvic fin ; Pl.C., pelvic cartilage ; P.O., 

 post-orbital sinus ; Re., rectal vein ; R.P., renal portal vein ; R.S., right spermatic vein ; S.C., 

 sub-clavian vein ; S.S., sub-scapular vein; S.V., sinus venosus ; T.G., thyroid gland ; V ., ventricle. 



K 



