80 MEMOIRS OF THE QUEENSLAND MUSEUM. 



region short, 1-8 to 1-9 in the Length of the anal ; caudal peduncle as deep as to one 

 sixth deeper than wide its width 2-1 to 2-2 in the eye-diameter. Head moderate, 

 its upper profile evenly convex from above the nostrils, its length 34 in that of 

 the body, its width 24 to 2-5 in its depth, which is from one seventh to one tenth 

 more than its length; cranio-nuchal keel well developed, cultriform. Snout 

 short, with linear strongly acclivous profile, its length 1-25 in the eye-diameter, 

 which is 2-85 to 3 in the length of the head; adipose lid little developed; inter- 

 orbital region elevated and acute, its width 1-2 in the eye-diameter. Lower jaw 

 somewhat projecting; maxillary rather slender, extending to below the anterior 

 border of the pupil, its length 2-5 to 2-6 in that of the head, the width of its 

 truncate distal extremity a little less than its distance from the eye and 3 to 

 3-15 in the eye-diameter. Preopercular border entire. 



Jaws with a narrow band of villiform teeth; a diamond-shaped patch 

 of similar teeth on the head of the vomer ; a broad band on the palatines and a 

 narrow one along the middle of the tongue. 



Cheeks, postorbital region, and upper angle of opercle covered with small 

 inconspicuous scales; rest of head, nuchal ridge, and breast naked; preorbital 

 and preopercle crossed by several simple or branched mucous canals; nuchal 

 canal simple, not reaching to the dorsal tin. Lateral line moderately curved to 

 below the 8th or 9th dorsal ray, the length of the curved section 1-33 to 4 in 

 that of the straight, which is armed throughout with 38 to 40 rather weak spinose 

 scutes, the widest of which is from 3-5 to 4 in the eye-diameter. 



Dorsal fin with vii, i 21 or 22 rays; procumbent spine well developed, 

 exposed ; spinous dorsal low. tin 1 spines weak, 3rd longest, 245 to 2-6 in the length 

 of the head, the last isolated and much stronger than the others. Soft dorsal 

 originating a little nearer to the tip of the snout than to the root of the caudal, 

 the 1st ray produced as a slender filament of varying length, extending to 

 between the base to well beyond the tip of the caudal fin, and from five ninths 

 to five sixths of the body-length ; 2nd ray much shorter, as long as to one third 

 longer than the head; the succeeding rays rapidly decrease to the 6th, beyond 

 which they are equal, the last scarcely produced. Caudal fin deeply forked, 

 the lobes equal and pointed, 3-5 to 3-6 in the length of the body. Anal fin with 

 ii, i 17 or 18 rays, originating below the 8th dorsal ray; 2nd free spine the 

 longer, 245 to 2-35 in the eye-diameter and 645 to 6-25 in the 1st ray, which is 

 slightly produced, its length equal to or a little less than that of the head 

 and reaching when depressed to the 12th or 13th ray. Pectoral with 20 rays, 

 its length 2-5 to 2-6 in that of the body ; 4th ray longest, reaching to above the 

 10th anal ray. Ventral moderate, its length 2-3 to 2-55 in that of the pectoral 

 and 1-7 to 1-9 in that of the head, the 2nd ray longest, reaching to or nearly 

 to the free anal spines. 



Gill-rakers rather long and slender, 15 or 16 4- 41 to 38 on the anterior 

 arch, the longest 5 to 5-2 in the length of the head and rather longer than the 



