CHECK-LIST OF THE FISH AND FISH-LIKE ANIMALS OF NEW SOUTH WALES. 221 



10. Prionace Cantor, Cat. Malay. Fish., 1850, p. 3911 (g/attca). 



10a. P. clauca. Blue Shark. Squalus glaucus Linne, Syst. Nat. luth ed.. 175S, p. 233 ; 

 Galeus glaucus Carman. Mem. Mus, Comp. Zool., xxxvi., 1913, p. 145. pi. 3. fig. 1-3- (PI- xvi.). 

 Widely distributed over most warm seas, but not certainly known from New South Wales. Grows 

 to 15 feet in length. 



11. Galeocerdo Mull. & Henle, Arch. Xaturg. iii. I., 1S37. p. 398 (arctic us). 



11a. G. arcticus. Tiger Shark. Squalus arcticus Faber Naturg. Fisch. Iss.. 1S29, p. 17; 



G. rayneri Macdon. & Barron, P.Z.S. 1868, p. 368, pi. 32. (PI xvi.). 

 A common and dangerous species reaching a length of at least sixteen feet. It is widely dis- 

 tributed throughout temperate and tropical seas, and often appears in our harbours and estuaries. 



12. GALEUS Rahnesque, Caratt. Gen. Spec Sicilia, 1810, p. 13 (galeus). 



12a. G. australis. School Shark. (;. auslralis Macleay, P.L.S. N.S.W., vi., 1881, p. 354 ; Id- 



McCoy, Prodr. Zool. Vict. dec. vii., 18S2, pi. 64, 2. 

 A very common species, growing to about five feet long. 



VII. Family Mustelicae. 



13. Mustelus I.inck. Mag. neue Phys. u. Nat. vi., 1790, p. 31 (mustelus). 



13a. M. antarcticus. Gummy. .1/. antarclicits Gthr., Brit. Mus. Cat. Fish., viii., 1870, p. 387; 



Id. McCul., Rec. Aust. Mus.. vii., 1909, p. 315, pi. 90, 3. (PI. xvi.). 

 Another small and harmless species, reaching about 3! feet in length. The blunt, pavement-like 

 teeth, from which this shark derives its popular name, serve to crush up shell-fish and crustaceans, 

 etc. The young are developed within the body of the parent, and supplied with nourishment by 

 means of a remarkable structure resembling the placenta of mammals. 



VIII. Family Sphyrnidae. 



14. Sphvrna Rafinsq., Indies Ittiol. Sicil., 1810, pp. 46, 50 (zygaena). 



14a. S. zygaena. Hammer-headed Shark. Squalus zygaena Linne, Syst. Nat. 10th ed., 1758, 



p. 234 ; Cestracion zygaena Garman, Mem. Mus. Comp. Zool., xxxvi., 1913, p. 157, pi. 1, 1-3. 



(PI. xvi.). 



Grows to at least fifteen feet long, and is very dangerous to man. Not uncommon in the open sea, 



and remarkable for the lateral expansions of the head, which bear the eyes. The young are very 



numerous and are born alive. 



IX. Family Orectoloeidae. 



A. Sides of head with skinny lobes anteriorly. Orectolobus (15). 

 AA. Sides of head without lobes. 



B. Anal commencing before the second dorsal. Parascyllium (17). 

 BB. Anal behind the second dorsal. 



C. First dorsal behind the ventrals ; spiracle below the eye. Brachaelurus (16). 



CC. First dorsal above the ventrals ; spiracle behind the eye. Stegostoma (18). 



15. Orectolobus Bonaparte, Icon. Faun. Ital., Pesc, fasc. 7, 1834, p. 11 (barbatus). 



15a. O. maculatus. Wobeegong. Squalus maculatus Bonnaterre, Encycl. Meth., Ichth., 1788, 

 p. 8 ; 0. maculatus Ogil. & McCul., P. Roy. Soc. N.S.W., xlii., 1909, p. 273, pi. 42, 2. (PI. xvi.). 



