﻿2 • ENDEAVOUE" SCIENTIFIC HESULTS. 



II.— DESCRIPTION OF THE GENERA AND SPECIES. 



Famiiv HEXANCHID^. 



Genus Heptranchias, Rdfincsque. 



Heptranchias perlo, Bonnaterre. 



Seven-gilled Shark. 



(Plate i., fig. I.) 



Squalus perlo, Bonnaterre, Encycl. Meth., Ichth., i7<S8, p. lo. 

 Squalus cinereus, Gmelin, Linn. Syst. Nat., 1789, p. 1497. 

 Heptanchus cinereus, Miiller & Henle, Plagiost., 1839, p. 81, 



pi. XXXV. 



Notidanus cinereus, Giinther, Brit. Mus. Cat. Fish., viii., 

 1870, p. 398. 



The collection includes seven examples which I am unable 

 to separate from the European H. perlu, Bonnaterre. Their 

 teeth agree exactly with NUiller and Henle's figure, and the} 

 also fit the description fairly well. I forwarded a photograph 

 of one of the specimens, together with some notes, to Mr. C. 

 Tate Regan for his opinion, and he has favoured me with the 

 following reply :^ — -"So far as I can judge from your photo- 

 graph the shark is H. cinereus.'" 



These specimens are readily distinguished from H. indicus, 

 Agassiz, the only other Australian species, by the following 

 characters :■ — 



Head broad, snout broadly rounded; a single median tooth 

 in the upper jaw ; colour greyish with darker spots : — indicus. 



Head narrow, snout pointed ; no single median tooth in the 

 upper jaw; colour uniform grey: — perlo. 



All the specimens were taken in the one haul in 60-70 

 fathoms, sixty miles south of Cape Everard, Victoria. 



Famiiv HE lERODON'riD.'E. 



Genus Hetkrodoxtis, Hlainville. 



Hkterodoxtus philippi, Block and Schneider. 



Port Jackson Shark, Bxdlhead Shark, Oyster Crusher. 



Squalus philippi, Bloch and Schneider, Syst. Ichth., 1801, 



P- 134- 

 Cestracion phillipi, Regan, Ann. Mag. Nat. Hist. (8), 1., 

 1908, p. 495. 



