220 



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



The inclusion of this widely distributed genus in this list is based upon some remains found in 

 Port Jackson. The typical species, C. anguineus, is a very primitive shark first described fromjapan, 

 which grows to about six feet in length. 



V. Family Heterodontidae. 



A. Supraorbital ridges gradually decreasing in height posteriorly ; enlarged lateral teeth not carinate. Heterodontus (6). 



AA. Supraorbital ridges ending abruptly posteriorly ; enlarged lateral teeth with distinct keels. Gyropleuroius (7). 



(>. Heterodontus Blainville, Bull. Soc. Philom. viii., 1816, p. 121 (philippi). 



6a. H. philippi. Port Jackson Shark. Squalus philippi Bloch & Schneider, Syst. Ichth., 

 1801, p. 134 ; H. philippi McCoy, Prodr. Zool. Vict. dec. xii., 1886, pi. 113. (PI. xvi.). 



Common in the shallower waters of the southern half of Australia. Fossil remains of allied forms 

 are known from the Carboniferous Series, and indicate that these sharks were more numerous in 

 Palaeozoic and Mesozoic times than at present. The teeth are of remarkable form, being adapted for 

 crushing the shell-fish, etc., upon which this species feeds. Attains a length of about four feet. 



7. Gvroplei'rodus Gill, Proc. Acad. Nat. Sci. Philad., 1862, p. 489 (francisci). 



7a. G. galeatus. Crested Port Jackson Shark. Cestracion galeatus Gunther, Brit. Mus. Cat- 

 Fish., viii., 1870, p. 416 ; Heterodontus galeatus Macl. cv Macl., P.L.S. N.S.W., iii., 1879, p. 313, 

 pi. 25. (PI. xvi.). 



Less abundant than the preceding species, but similar in both habits and appearance. The egg- 

 cases of both are of remarkable form, being spiral, and provided with long tendrils. 



VI. 



Family Carcharhinidae. 



A. Spiracles present. 



B. A conspicuous pit above the root of the tail ; subcaudal lobe very long. 

 BB. No pit at the root of the tail ; subcaudal lobe short. 



AA. Spiracles absent. 



C. First dorsal nearer pectorals than ventrals. 



D. Teeth serrated on the base in the upper series only. 

 DD. Teeth serrated on both bases and cusps. 

 CC. First dorsal nearer the ventrals than the pectorals. 



8. Carcharhinus Blainville, Bull. Soc. Philom., viii., 1816, p. 121 [commersonii) . 



A. Teeth of both jaws serrated. 



B. Upper teeth slightly notched on the outer edge. 



BB, Upper teeth deeply notched on the outer edge. 

 AA. Teeth ni lower jaw entire ; upper teeth scarcely notched. 



GaU'ocerdo (n). 

 Galeus (12). 



Hypoprion (9), 

 Carcharhinus (8). 



I J iionace (lo). 



gingeticus (8a), 



brachyurus (8b). 



stevensi (8c). 



8a. C cangeticus. Sea Shark. Carcharias, Piioiwdon, gangeticus Mull. & Henlc, Plagiost., 

 1838, p. 39, pi. 13. 



Grows to at least seven feet long. A ferocious species in Indian estuaries. 



8b. C. brachyurus. Whaler. Carcharias, Prionodon, brachyurus, Gthr., Brit. Mus. Cat. Fish. 



viii., 1870, p. 369 ; Id. Waite, Rec. Aust. Mus. vi., 1906, p. 226, pi. 39. (PI. xvi.). 

 A common species growing to twelve feet in length. 



8c. C. stevensi. Carcharias stevensi Ogilby, Ann. QUI. Mus. x., 191 1, p. 38. 

 A little known species from northern New South Wales and Queensland. 



9. Hypoprion Mull. & Henle, Plagiost., 1838, p. 34 (macloti). 



ga. H. MACL6TI. Long-nosed Sea Shark. Id. Mull. & Henle, hoc. cit., pi. 10. (PI. xvi.). 

 Only once recorded from Port Jackson ; the specimen was 3 feet long. 



