STDDIES IN AUSTRALIAN FISHES McCDLLOCH. 165 



Lot's. — The Australian Museum collection includes many 

 specimens from various localities ai'ound Sydney, and from 

 Port Stephens and Eden, New South Wales. Two identified 

 by Ogilby as H. copii are from Southport, Moreton Bay, 

 Queensland. A number of small specimens, 41-56 mm. long, 

 from Safety Bay, Fremantle, Western Australia, are also ap- 

 parently this species ; they are more slender than larger 

 examples, the depth being 5.4 in the length to the base of the 

 caudal fin, and 1.3 in that of the head, which is 4 in the 

 length ; the number of scales and fin-rays do not appear to 

 differ from those of New South Wales specimens. 



Hyperlophos translucidds, sj). nov. 

 (Plate xxix., fig. 3.) 



D. 15-16; A. 19-22; P. 10-13 ; V. 7; C. 19. L. lat. ? 

 Head 4.08 in the length to the base of the tail ; depth slightly 

 greater than the length of the head, 3.9 in the same. Eye 

 slightly longer that the snout, 3.3 in the head. Third dorsal 

 ray 1.6, third anal ray 2.5, pectoial 1.6, ventral 2.3 in the 

 head. 



Body strongly compressed, the ventral profile much more 

 strongly arched than the dorsal. Scales very deciduous, 

 wanting in the type. Dorsal and ventral serratures well 

 developed ; there are sixteen scutes between the occiput and 

 the origin of the dorsal fin, seventeen between the isthmus and 

 the ventrals, and nine more to the vent. 



Eye with a narrow adipose lid posteriorly. Nostrils supero- 

 lateral, close together ; the posterior is in the middle of the 

 length of the snout. Maxillary reaching back to below the 

 anterior portion of the eye. Jaws and palate toothless ; tongue 

 with minute teeth on the median line. Cheeks, opercles, and 

 tiape with a well developed muciferous system, which also ex- 

 tends onto the body behind the scapular bone. 



Dorsal fin originating at a point midway between the snout 

 and the base of the caudal, and terminating above the anterior 

 anal ray. Ventrals inserted wholly before the dorsal, and 

 liearer the snout than the base of the caudal. 



