BY W. MACLEAY, F.L.S. 393 



The length of the snout is not quite half that of the head ; 

 dorsal and anal fins angular, truncated posterio^l3^ Silvery with 

 five black transverse bands, between which are others of a 

 greyish colour. 



Port Jackson. King George's Sound. 



200. ClIELilO TROCHILIJS, Guuth. 



Ann. Mag. Nat. Hist. 1874, Yol. XIV., p. 368. 

 D, 11/27. A. 3/8. L. lat. 55. 



Body as high as long, head and caudal fin excluded. The 

 length of the snout is contained twice and one-third in that of the 

 head. Anterior part of the soft dorsal and anal fins produced 

 into an acute point, the hind margin of the fins being vertical. 

 Caudal fin truncated. Silvery ; head and body with five black 

 transverse bands, the first (the ocular band) mucli narrower than 

 the orbit, extending from the nape to the interoperculum, and 

 edged with white above the eye ; the second, rather broader 

 than the first, runs from the three anterior dorsal spines over 

 the operculum across the chest in front of the ventrals ; the third, 

 twice as broad as the second, from the sixth, seventh, and eighth 

 spines to the abdomen, the fourth, between the pointed angles of 

 the dorsal and anal fins ; the fifth narrow, round the middle of the 

 free portion of the tail ; an indistinct and incomplete cross-band 

 between the first and second, and another between the second 

 and third bands ; some irregular blackish spots in the interspaces. 

 Hind-margin of the dorsal and anal fins blackish. Caudal uniform 

 reddish ; ventrals black, with yellowish spine. 



Australia (Gunther). Seven inches long. 



Genus Hexiocuus. 

 Differs from CTuctodon in having the fourth dorsal spine elongate 

 and filiform. Five brancliiostegals. 

 Indian and Australian Seas. 



