354 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



" Tiger Shark " of Port Jackson Fishermen. 

 Port Jackson. Length twelve feet. 



'8 l 



Genus Galeus, Cuv. 



The first dorsal fin opposite to the space between the pectoral 

 and ventral fins, without spine. Caudal fin with a single notch. 

 No pit at the commencement of the caudal fin. A nictitating 

 membrane. Small spiracles. Mouth crescent shaped. Teeth 

 equal in both jaws, oblique, with notch and serrature. 



Temperate and Tropical Seas. 



1079. Galeus australis, n. sp. 



The snout is long and depressed, the nostrils being very much 

 nearer to the mouth than to the snout. At the angle of the 

 mouth there is a conspicuous fold, which on the upper jaw is 

 continued a considerable distance, but terminates below close to 

 the angle. Eye with a distinct fold above, the pupil horizontal ; 

 spiracle a little behind the eye, a small horizontal slit. The teeth 

 are small and equal in both jaws, strongly notched and strongly 

 serrated on the outer side. The first dorsal fin is about midway 

 between the anterior roots of the pectoral and ventral fins. The 

 second dorsal fin is very small, of the size and shape of the anal, 

 but placed quite half its length in front of it. The caudal fin 

 has a faint trace of a pit above and below at its commencement, 

 and its length is equal to two-thirds of the distance between the 

 first and second dorsals, and is about one-sixth of the total length. 

 A very slight fold extends along each side from the snout to the 

 tail. The upper surface of the snout is marked with numerous 

 pores, and a few are to be traced on the space between the 

 spiracles and the gill-opening ; these last are rather small. The 

 foetus differs in having the spiracles larger and rounder and the 

 fins tipped with black. The colour is pale bluish-grey indistinctly 

 mottled with darker on the back. 



