4 MEMOIRS OF THE QUEENSLAND MUSEUM. 



parietal regions, and cheeks scaly, the rest of the head naked ; cheek-scales much 

 smaller than the others, in 8 or 9 series between the eye and the angle of the 

 preopercle. Lateral line following the curvature of the back. 



Dorsal fins with viii or ix, i 8 to 11 rays, originating slightly behind the 

 pectoral-base, and terminating above the fifth or sixth anal ray ; first spine short, 

 4-2 to 4-75 in the longest, which is usually the fourth, though the fifth sometimes 

 slightly exceeds it, and is 1-67 to 2-67 in the length of the head, the last as long 

 as or a little longer than the second, 1-9 to 2-2 in the longest, and 1-22 to 1-4 in 

 the spine of the second dorsal, which is 1.4 to 1-67 in the longest ray ; first, second, 

 or third ray longest, one sixth more to one sixth less than the longest spine, and 

 subequal to the basal length of the second dorsal, which is 1-17 to 1.33 in that of 

 the first ; first dorsal ray divided distally, the last split to the base ; outer border 

 -of soft rays gently rounded. Caudal fin emarginate, with 17 principal rays, the 

 lobes equal and obtusely pointed, the middle rays 1-38 to 1-67 in the upper lobe, 

 which is 3-55 to 3-83 in the body-length. Anal fin with iii 7 to 9 rays, originating 

 below the third or fourth dorsal ray ; second and third spines equal or the third 

 a little the longest, intermediate in length to the sixth and seventh dorsal spines, 

 2-44 to 3-67 in the length of the head, and 1-33 to 1-5 in the first or second ray, 

 which is one tenth to one fourth more than the basal length and 1-8 to 2-2 in the 

 length of the head; outer border linear; rays similar to those of the dorsal. 

 Pectoral obtusely pointed, with 12 to 16 rays, its length 1-55 to 2 in that of the 

 head; fourth or fifth ray longest, extending to below the sixth or seventh dorsal 

 spine. Ventral bluntly pointed, the spine strong and pungent, 1-37 to 1-67 in the 

 length of the first and second rays, which are subequal, 1-44 to 1-7 in the 

 length of the head, and do not usually reach the vent. 



Gill-openings extending forward to below the middle of the eye ; gill-rakers 

 longer than the gill-fringes, 13 to 16 on the lower branch of the anterior arch, the 

 longest 1-3 to 2-67 in the eye-diameter ; pyloric appendages 10. 



Upper surface varying from olive-brown to deep olive-green, the head 

 darkest ; sides and lower surfaces shading from grayish green to grayish white, 

 the latter and the cheeks sometimes washed with yellow. All the fins olive-green, 

 except the first dorsal, which is gray or lavender ; upper half of opercle, ventrals, 

 and anal with a conspicuous blackish blotch in the young. 



Described from numerous examples, measuring from 143 to 878 mm., 

 collected at various localities between and including the Snowy River, N.S.W., 

 and the Pine River, Q. 



My "Edible Fishes and Crustaceans of New South Wales" being now 

 unattainable, I think it advisable to republish my reasons for rejecting the 

 supposititious species of Castelnau and Macleay, so as to make this article as 

 complete as possible ; and at the same time to bring my account of the species up 

 to date by going thoroughly into the claims of Percolates fluviatilis to validity. 

 In the work quoted I remark : — 



