178 CONTRIBUTIONS TO AUSTRALIAN ICHTHYOLOGY, 



upper profile of head feebly convex, the snout obtuse. Diameter 

 of eye 3| in the length of the head and 4 of that of the snout. 

 Interorbital region gently rounded, its width 4^ in the head. 

 Jaws equal. Maxillary scarcely extending to the vertical from 

 the anterior border of the eye, its length ^ of the head, the width 

 of its distal extremity | of the diameter of the eye. No vomerine 

 or palatine teeth. Preorbital strongly serrated on the postero- 

 inferior angle. Outer limb of preopercle naked, the lower border 

 inconspicuously, the angle and hinder border strongly, denticulated; 

 preopercular scales in eight transverse series, interopevcular in 

 two or three; lower opercular spine much the longer, strong, and 

 acute. Gill-rakers 5 + 13, the longest ^^^ of the eye. Dorsal fin 

 high, originating slightly behind the base of the pectoral, the 

 spines increasing in length to the fifth, which is 1 1 in the length 

 of the head and subequal to the third and longest soft ray; first 

 spine rather less than half as long as the last, which is shorter 

 than the penultimate and -| of the third soft ray : anal much 

 longer than its distance from the caudal, the second spine slightly 

 exceeding the third in length, 2 to 2i in the head; outer border 

 of soft dorsal and anal rays convex : ventral rounded, with the 

 outer ray slightly produced, 4 of the head and nearly reaching to 

 the vent : pectoral with 1 4 rays, i- of the head : caudal sub- 

 truncate, with the angles rounded, 4| in the total length; least 

 depth of caudal peduncle 1;^ in its length and 24 in the depth of 

 the body. Light brown above, grey below; five indistinct broad 

 brown bands across the back but not continued below the lateral 

 line; a lai'ge oval blackish shoulder-spot below the lateral line; a 

 narrow blackish band below the eye and a second through the 

 eye to the preopercle: caudal fin profusely, soft dorsal and anal 

 sparingly, spotted with dark brown. 



Etymology: — humeralis, belonging to the shoulder; in 

 reference to the conspicuous dark shoulder-spot. 



Type in the author's possession. 



Distribution : — Pelsart Island, Houtman's Abrolhos, West 

 Australia, where a single example, 175 millimeters in length, was 

 obtained by Mr. Lea. 



