CONTEIBUTION 
TO THE 
ICHTHYOLOGY OF AUSTRALIA. 
VI. — NOTES ON FISHES FROM KNOB ISLAND. 
The following species were contained in a small bottle 
purchased from a sailor, who said they came from Nob or 
Knob Island, in the north of Australia. I am unable to find 
out where this is situated, but I am inclined to believe that it 
may be one of the numerous islands of Torres Straits, as the 
sorts have a decided tropical appearance. 
NEOMYRIPRISTIS. 
This genus, by its large eyes, its opercular bones serrated \ 
its spiny operculum, its prseopercular without a spine ; its 
large scales ; its two dorsals scarcely united ; its ventrals with 
seven rays ; its forked caudal, and its four spines at the anal, 
comes very near to Myripristis, but its dentition is different, 
being composed of a simple series of small, sharp, arched 
teeth on each jaw ■ it has also transverse series of sharp teeth 
on the vomer and palatines. 
The snout is prominent and like gibbous, which gives it a 
singular appearance ; the upper part of the head presents the 
singular sculptures which are also observable in Myripristis 
and Holocentrum ; they are formed of ridges which have on 
the top of the head the form of a very long quadrilater ; 
behind this, on each side, there is a bunch of ridges which 
are disposed in a radiated and rather palmated way ; over the 
