1770 
LIST OF THE AUSTRALIAN PAL.EICHTHYES, 
genus of lepiclopterous insects by Otto Fabricius in 1775, 
and is still in use in a restricted sense : even therefore had 
this name, given by Baron Cuvier in 1817, been the oldest 
by which the genus was known, its retention would be 
inadmissable,t but as a fact three other names have a prior 
claim. In 1749 Klein {Fisc. Miss. III. p. 12) established 
the genus Cestracion for the reception of the “ Hammer- 
headed Shark,” the name being derived from a Greek 
word signifying a “ pick-axe,” and therefore eminently 
suitable for this fish ; this title however, having been 
given many years previous to the earliest date decided on 
by the British Association, cannot be retained ; and this is 
fortunate, since its retention would have entailed endless 
trouble and confusion, it having subsequently been used 
very generally, though erroneously, for the Bull-head Sharks 
[Heterodontus). No such objection however can be taken 
to the name Sphyrna proposed for these fishes by Rafin- 
esque {Ind. It. Sicil.) in 1810, and adopted by such 
authorities as Muller, Henle, Gray, and many American 
systematists ; and believing that these authors are correct 
in their view of the case I have followed them in using 
the generic name Sphyrna for these Sharks. And even 
if this name were inadmissable Blainville’s Cestrorhinus 
(Prodr. 1816, p. 121), also an admirable name, takes 
precedence of Cuvier’s Zyycena. 
Mustelus, Cuvier (1817). 
15. M. ANTARCTicus, Gnth. New South Wales, common as far 
north as Broken Bay, beyond which I have been unable to 
trace them, though doubtless they occur. Victoria, common 
{McCoy). Tasmania, common {Johnston). The “ Hound ” 
( Sydney). 
t A parallel instanee of the change of a name in consequence of its pi’ior 
use in a different class, may be found in the substitution by Dr. Gunther of 
Atypichthys for Atypiis, the latter name having been applied to a genus of 
spiders many years previously by Latreille. 
