OF AUSTRALIA. 125 
with olive ; the belly is pink • the fins of the same olive-green 
as the head and body. 
My largest specimen is two inches and eight-tenths long. 
These very pretty fishes were found by the Kev. & Mr 
Bostock in the fresh waters of the interior of Western 
Australia. 
EDELIA VIRIDIS. 
Height of body contained twice and eight-tenths in the 
length without the caudal fin ■ head rather pointed, three 
times and one-fifth in the same ; lower jaw longer than the 
upper one ; the form of the body is oval, and the upper profile 
descends in a regular, slightly convexed way, to the snout • 
the prasoperculum is rounded ; the opeculum has two points' 
the lower being longer than the other ; the upper part 
of the head and all the opercular pieces are covered 
with scales similar to those of the body ; these scales 
number twenty-eight on the longitudinal line from the end of 
the operculum to the base of the caudal, and thirteen on the 
transverse one. They are rather large, punctulated, covered 
with concentric lines, and their edge is ciliated. The first 
dorsal is placed rather more in front than in E. Vittata. It 
is formed of seven spines of the same form as those of that 
species ; the second dorsal has one spine and nine rays ■ 
the last of these rather prolongated ; caudal pointed, the 
central rays being longer than the others ■ anal of three 
spines; the first of which is the shortest, and the other two 
nearly equal ; the soft portion is formed of eight rays, and has 
the same form as the corresponding dorsal ; ventrals and 
pectorals placed as in Vittata, the latter of thirteen rays 
The colour is of a dark olive-green, with the lower parts 
lighter. There is m some specimens a black blotch behind the 
operculum, over the insertion of the pectorals, and in others 
a rather oscellated spot on the base of the caudal fin : the 
fins are of an obscure yellow. 
The largest specimens are less than an inch and a half long 
Ihey were found in fresh-water in the interior of Kin- George's 
Sound by Mr. Maxwell. ° 
