OF AUSTRALIA. 
47 
to the central end of the caudal ; the head is three times and 
eight-tenths in the same ; the eye four times and a quarter in 
the length of the head ; the lateral line has eighty shields, 
and bends rather more suddenly than in the figure given by 
Cuvier and Valenciennes ; the upper profile of the body is of a 
regular oval form. The body and head are silvery, with their 
upper part of a dark green, rather iridescent. 
Very rare at Melbourne. My specimens were found in the 
month of May. 
GOBIUS CAUDATUS. 
This sort belongs to Dr. Gunther's division, characterised 
by having "the anterior dorsal with six spines; scales large 
or moderate ; no crest on the head, which is longer than high ; 
all the spines flexible ; caudal fin elongate ; " height of body 
five times in the length without the caudal ; head four times 
in the same ; eye three times and a half in the length of the 
head ; the lower jaw longer than the upper one ; teeth small, 
some rather longer than the others ; head smooth ; scales of the 
body large. First dorsal with six rays, the first of which is much 
shorter than the others, the fifth being the longest, and pro- 
duced in a short filament ; second dorsal about as high as the 
first in front, but becoming longer behind ; the last ray rather 
produced ; it is formed of eleven rays. The caudal very 
large, pointed ; formed of fifteen principal rays, and of several 
smaller ones on each side ; its central rays are produced in 
filaments ; the total length of this fin is equal to half the 
length of the fish without it. Anal having the same form as 
the second dorsal, of eleven rays, the last rather produced 
ventrals united to nearly one-half of their length ; pectorals 
long, pointed, of fifteen rays, the central ones filamentary. 
On the dried specimen the colour is of a light brown, with 
marks of obscure spots ; the head shows a dark oblique band 
running from the eyes to the operculum; the fins are diaphon- 
ous ; the first dorsal has an obscure longitudinal band on the 
middle of its height ; the second has its external and posterior 
portions obscure ; the caudal shows obscure transverse bands, 
and its prolongated rays are almost black ; the exterior part of 
