178 
The colours are the same as in Attenuatus ; but when preserved 
in spirits, they become grey. 
Lower Yarra. It attains the same size as the preceding. 
GAIAXIAS DELICATTJLtrS. 
D. 10. A. 19. 0.16. 
Perm elongate. The height of the body is six and eight-tenth 
times in the total length (to the middle of the caudal) ; the head 
is six and two-third times in the same lensth. 
The head is of a light brownish red ; the body of a light yellow 
green above the lateral line, and is covered with faint, irregular, 
transversal spots, formed of very fine blue points. The lateral 
line itself is little marked on its anterior portion, but very dis- 
tinct and of a yellowish colour on the other part of the body ; 
below this line, the colour is of a fine opal white ; the eye is 
silvery. The dorsal fin is of the colour of the back, but its 
terminal portion is lighter ; the caudal is of a yellowish green ; the 
pectorals, ventrals, and anal of a transparent white ; the caudal 
is feebly bilobed. 
Yarra Eiver ; 4 inches long. 
GAIiAXIAS AMA3NUS. 
D. 12. A. 14. 
Porm rather elongate. The height is five and two-third times 
in the total length (to the middle of the caudal) ; head four and 
one-third times in the same. 
Of a light green colour ; a brown spot between the eyes, 
extending a little behind them ; the back covered with very 
minute black points, forming very indistinct, transverse, oblique 
lines, better marked on the posterior part. A considerable 
number of points, rather larger than the others, are disposed on 
the body, and form a double, but rather irregular, longitudinal 
line on the middle of the back. The lower side of the body is 
covered with the same punctuation and bands as the back, but 
the belly is of a rather dark blue, silvery colour ; the eye is of a 
dark green. 
Yarra Eiver. Prom 3 to 4 inches long. 
