730 
PROFESSOR T. J. PARKER OX THE 
PLATE 36. 
Must elm anta > xticus. 
Fig. 12. The alimentary canal and its blood-vessels; from the dorsal aspect (half 
nat. size). 
Card, st., cardiac division of' stomach ; P/jl st., pyloric division ; Intest., 
intestine, partly cut open to show Spir. V., spiral valve ; Rect., rectum ; 
Red. gl., rectal gland. 
Fig. 13. The hepatic portal vein; from the ventral aspect (nat. size). 
Fig. 14. The cutaneous veins; from the ventral aspect (half nat. size). 
All four veins are shown as interrupted a short distance caudad of the 
vent, so as to bring them within the compass of the plate ; the dorsal 
vein is also interrupted, for the sake of clearness, where it passes behind 
the cloacal, &c., veins. 
Fig. 15. The first dorsal fin and adjacent parts, showing the relation of the dorsal 
cutaneous vein to the fin and to the renal portal vein ; from the left side 
(half nat. size). 
Kd., the left kidney. 
Fig. 1 6. The left subscapular sinus, supposed to be seen through the scapula, showing 
the entrance of the lateral cutaneous vein ; from the left side (nat. size). 
Soap., scapula. 
Callo i ‘hynchus antarct icus. 
Fig. 17. The efferent branchial and cephalic arteries with part of the dorsal aorta, for 
comparison with fig. 6 ; from the ventral aspect (nat. size). 
PLATE 37. 
Mustelus antarctic us. 
Transverse sections of adult female (all § nat. size). 
Fig. 1 8. Through the branchial region ; posterior face of section. 
Br. 1, Br. 2, first and second holobranchs ; Hy., hyoidean hemibranch ; 
PA., pharynx. 
Fig. 19. Taken immediately caudad of the dorsal moiety of the pericardio-peritoneal 
septum and through the posterior extremity or apex of the ventricle ; on 
the right side the pericardio-peritoneal septum is cut away and- the sinus 
venosus and precaval sinus are opened ; posterior face of section. 
Cor., coracoid ; CEs., oesophagus ; Peric, peril. Sept., pericardio-peritoneal 
septum. 
