350 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



sometimes found in half grown and adult examples, in which, 

 however, they are hidden in the skin. 



Coasts of Australia and Tasmania. 



-. From five to seven gill-opening 8. (Order Plagiostomata, Gunth.) 



Sub-Order I. SELACHOIDEL 



Body more or less cylindrical, gradually passing into l/tc tail. 

 Gill-openings lateral. — Sharks. 



Family I. CARCHABIID.F. 



Eye with a nictitating membrane. An anal fin. The first 

 dorsal opposite to the space between the pectoral and ventral 

 tins, without spine. Mouth crescent-shaped, inferior. 



Genus Carciiarias, Cut. 



A pit at the root of the caudal fin, which has a distinct 

 lower lobe. Spiracles none. Mouth crescent-shaped ; the labial 

 groove or fold is confined to, or does not extend much beyond, 

 the angle of the mouth. Snout produced longitudinally. Teeth 

 with a single sharp cusp, more or less dilated and triangular. 



Temperate and Tropical Seas. 



1071. Carciiarias acutidens, Eupp. 

 Gunth., Cat. Fishes VIII., p. 361.— Mull. & Henle, p. 33. 



Snout short and obtuse. Pectoral fins pointed, but little 

 extending beyond the origin of the dorsal. The second dorsal 

 fin is but little smaller than the first, and very similar in size 

 and form to the anal. Nostril with a very distinct valve at its 

 lower half. A short groove at the angle of the mouth. Gills 

 of moderate width. Teeth 27/27-29/29, not serrated. 



Torres Straits. 



