OF AUSTRALIA. 
143 
From base of ventrals to anal 
From base of anal to the central base of 
caudal 
Length of first dorsal ray 
Id. of caudal to the centre 
Id. to the end of lower lobe 
My largest specimen is forty-one inches long. 
HEMIEHAMPHUS MELANOCHIR. 
Hemirhamphus Melanochir, Cuv. and Vol., vol. xix.,. 
p. 41. 
Is called Gar-fish at Freemantle, where it is only thought 
edible at certain seasons and not at others ; the vertebra are 
at times green. 
CHATOESSUS EREBI. 
Chatoessus Erebi, Gunther, Cat. vii., p. 207. 
Come, Richard., Ereh. and Terror, p. .61, 
pi. 38. 
Several specimens of a Chatoessus are in the collection, which 
is different from the one I thought to be Erehi in the Pro- 
ceedings of last year ; it can be distinguished easily by its 
much smaller size, the largest being only seven inches long, 
and they are said to be the average size of the fish, and also 
by its form, longer and much less elevated ; the upper profile 
is oval, and forms a regular, arched line ; the height is con- 
tained three times in the total length to the centre of the 
caudal fin, and the head a little over four times in the same ; 
the caudal is very deeply forked and its lobes pointed ; the 
prolongated ray of the dorsal is much longer and is con- 
tained three times in the total length ; the ventrals are 
placed a little behind the vertical from the insertion of the 
dorsal. 
The colour is still, after immersion in liquor, very silvery, with 
the upper parts of the body of a fine light blue ; the pectorals, 
ventrals, and anal are very obscure, and the other fins are 
yellow. 
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