104 MEMOIRS OF THE QUEENSLAND MUSEUM. 



Type locality: — East Indies. 



Depth of body 1-9 to 2 in its length; dorsal contour rather more elevated 

 than the ventral, its anterior profile linear and strongly acclivous to above the 

 middle of the eye, thence by a moderate convexity to about the 5th dorsal spine, 

 beyond which it descends in a long gentle curve to the middle of the soft dorsal, 

 whence it bends more abruptly downwards to the caudal peduncle; ventral 

 contour feebly convex between the chin and the ventrals, thence linear to the 

 anal, the base of which is evenly convex; least depth of peduncle 6-75 in the 

 length of the body. Width of head 1-6 in its length, which is 1-15 to 1-3 in its 

 depth and 3-7 to 3-85 in the body-length. Diameter of eye 1-15 in the length of 

 the snout, which is 2-7 in that of the head ; interorbital region as wide as and 

 one sixth less high than the eye-diameter. Maxillary extending to below the 

 anterior nostril. Preorbital coarsely denticulated, its width 1-2 in the eye- 

 diameter. Hinder limb and posterior half of lower limb of prccperele strongly 

 serrated, the former inclined somewhat backwards; spine long and curved, 1-75 

 in the length of the head, and extending to beyond the middle of the pectoral 

 base ; subopercle serrated. 



Scales ctenoid, the exposed portion coarsely and horizontally striated, 

 the strige smooth, each terminating in a stout spinule, the basal portion with the 

 margin conspicuously lobulate ; in 50 series above the lateral line and 6/1/18 or 

 19 between the spinous dorsal and the vent. Scattered squamula? present. 

 Lateral line incomplete, terminating near the base of the last dorsal ray, the 

 tubes simple. 



Dorsal fin originating above the opercle, with xv 16 rays, the soft portion 

 2-6 in the length of the spinous; spines graduated, the 1st well developed, 1-75 

 in the last, which is 1-8 in the longest ray and 6-1 to 6-33 in the body-length; 

 procumbent spine present ; soft dorsal with acutely pointed outline, the 8th and 

 9th rays longest, extending to beyond the level of the middle of the caudal, its 

 hinder border feebly concave Caudal tin rounded, the middle rays longer than 

 the outer and 4-1 in the length of the body. Anal fin with iii 18 rays, originating 

 below the 10th dorsal spine, the 1st spine 1-33 in the last, which is 1-8 in the 

 longest ray and 6-25 to 6-5 in the body-length ; soft anal similar in height and 

 shape to but much longer than the soft dorsal. Pectoral with 16 or 17 rays, its 

 length 3-9 to 1 in that of the body ; 5th ray longest, extending to below the 7th 

 dorsal spine. Ventral much longer than the pectoral, the spine 1-6 in the outer 

 ray, which is well produced, 3-35 in the body-length, and reaches beyond the base 

 of the 1st anal spine. 



Gill-rakers 3 -f- 12, short and pointed, except the anterior pair on the 

 upper branch, which are rudimentary. 



Posterior half of trunk and tail deep blue-black, the color continuous on 

 the soft dorsal and anal and on the interspinous membrane of the anal and the 



