184 
the intermaxillaries mesially and hy the maxillaries 
laterally ; maxiUaries composed of three, sometimes 
movable, pieces. Opercular apparatus complete. 
Adipose fin none. Dorsal not elongate ; anal some- 
times very long. Stomach with a blind sac ; pyloric 
appendages numerous. Gill apparatus much 
developed, the gill-openings being generally very 
wide. Pseudobranchise large, except in Megalops. 
Air-bladder more or less simple. 
“ Inhabitants of all seas, many species entering 
fresh waters.” 
CHATOESSTJS. 
Formed by Valenciennes, on a small group of fisbes, generally 
from the fresh waters of America and India, and often re- 
markable by the lowest ray of their dorsal being prolongated 
in a long filament. 
CHATOESSrS EEEBI. 
Chatoessus Erebi, Gunther, Cat, British Musuem, vol. vii., 
page 207. 
Comae, Richard., Brelus and Terror, p. 61, pi. 38. 
Clupea Thrissa (Kome) Russel, Fishes, Corom. ii., p. 76, 
pi. 196. 
Eichardson had considered this fish as belonging to the Kome 
of Eussell, but Dr. G-unther has found it was distinct. 
It is of a light silvery grey on the upper parts, with the edge 
of the scales rather obscure ; this is caused by the presence of 
numerous and very small black points j the lower parts are very 
brilliant, silvery, and iridated ; the top of the head is purple ; the 
dorsal of a fine grey, the others blueish ; ventrals white ; the 
caudal bordered with an obscure tinge ; the sides of the head 
are rather yellow, as are also the eyes. 
Very scarce in the Melbourne Market, and being very much 
