10 Records of the S.A. Museum 



Order SELACHII (Sharks). 



Family HEXANCHIDAE. 



NOTORHYNCHUS Ayres, 1855 (maeulatus). 



NOTORHYNCHUS PEOTOROSUS Garman (Seven-giHed Shark). 



Ilcpiranchus indicus Macdon. & Barr., P.Z.S., 1868, p. 871, pi. xxxiii. 



NoUdanus indicus Hiitt., Cat. Fish. N.Z., 1872, p. 79 ; McCoy, Prod. Zool. Vict., 



dec. V, 1880, pi. xliii, fig. 2. 

 ILeptranchias pectorosu-s Garm., Bull. Essex lust., xvi, 1884, p. 56. 

 Heptranchias haswelli Ogil., P.L.8., N.S.W., xxii, 1898, p. 62. 

 Notorhynchus indicus Waite, Mem. N.S.W. Nat. Club, ii, 1904, p. 5. 

 Notorhynchus pectorosus Garm., Mem. Mus. Comp. Zool., xxxvi, 1913, p. 20 



(syn.). 



Fig. 5. Notorhyiiduis pectorosus. 



Most sharks aud rays have five gill slits; this species and some of its allies 

 have seven slits, also a single fin only on the back. The teeth likewise are most 

 characteristic, and are dissinular in each jaAV. 



Family HETERODONTIDAE. 



HETERODONTUS Blainville, 1816 (philippi). 



HETERODONTUS PHILIPPI Bloch & Schneider (Port Jackson Shark). 



Squalus philippi Bl. & Schn., Syst. Ichth., 1801, p. 134. 



Ileterodontus philippi Blainv., Bull. Soc. Phil., 1816, p. 121 ; McCoy, Prod. Zool. 



Vict., dec. xii, 1886, pi. cxiii. 

 Cestracion philippi Less., Voy. Coquille, Zool., ii, 1830, p. 97, pi. ii; Waite, J.L.S., 



xxv, 1896, p. 325, pi. xii, fig. 1, 2 (egg) ; Saville Kent, Nat. in Anst., 1897, 



p. 192, fig. 

 Centracion pfiilippi Garm., Mem. Mus. Comp. Zool., xxxvi, 1913, p. 182 (ref.). 



Sometimes called a living fossil, existing forms being but little different from 

 species living in Palaeozoic ages. The crushing teeth are arranged obliquely and 



