OF AUSTRALIA. 107 
The ventrals are placed rather in advance of the dorsal, 
and the anal behind the end of it. The adipose is broad, 
arched, pointed, and placed above the end of the anal; 
towards the middle of the spine, between the anal and the 
root of the caudal, two sharp spines are seen on the lower 
profile. 
The general colour of the specimens which have been in 
spirits is of a dark brown where the scales have fallen, which 
takes place very easily, but where they exist, it is of a most 
brilliant irridated silver ; the fins are of a bright yellow. 
I have two specimens which both measure about three 
inches. 
BALISTES GAENOTI. 
Enters in Dr. Gunther's division characterised by " the free 
portion of the tail compressed ; teeth white, uneven, deeply 
notched ; no groove in front of the eyes, of a protruded 
sort ; species inhabiting China, Japan, India, the Cape of Good 
Hope, the Western coast of Africa, the West Indies, and 
appearing occasionally on the British coast." 
The form is short and high ; the height of the body is 
contained twice in the total length of the fish ; the head is 
twice and eight-tenths in the same ; the eye three times in 
the head. 
The anterior profile of the head is almost straight, very 
little concave; it is entirely covered with the same scales 
as the body; these are rough and armed with minute 
points; the back is strongly convex; the first dorsal is 
inserted behind the orbit and very little in advance of the 
base of the pectoral ; its spine is strong and straight, and is a 
little over one-half the height of the body; it presents in 
front a double series of broad, compressed, bifide spinulets ; 
it is sharp at its extremity, and has a deep longitudinal groove 
on its posterior surface ; on this side also it presents on each 
side a series of blunt spinulets, which run obliquely down- 
wards and join the anterior series; the space behind the 
posterior series is covered with longitudinal strise ; the second 
dorsal spine is a little over one-third of the first, and is joined to 
