FISHES.-MCCULLOCH. c 



width of one lobe. No cirrus. A well-marked labial fold 

 extends round the angle of the mouth, its anterior limb rather 

 shorter than its posterior which extends less than half way 

 towards the middle of the lower jaw. Teeth similar in both 

 jaws, arranged in several rows, tricuspid, with the median 

 point longer than the lateral ones. 



FIG. I. 



First dorsal originating a little behind the posterior base of 

 the ventrals and slightly in advance of the middle of the total 

 length. The length of its base is much greater than its 

 height ; its anterior margin is very oblique, and the posterior 

 nearly vertical, and the lower angle is pointed. The second 

 dorsal is a trifle higher than the first, and is of similar form, 

 though the posterior angle is slightly produced ; its origin is 

 over the posterior portion of the anal, and the hinder angle 

 is midway between the posterior insertion of the first dorsal 

 and the tip of the caudal. The anal is considerably larger 

 than either of the dorsals, and its base is longer than its dis- 

 tance from the caudal ; the posterior angle acute. Greatest 

 breadth of the caudal a little less than one-third of its length. 

 Posterior angles of the ventrals acute and the margins united 

 in the male. 



Scales quadrilateral and keeled on the head, becoming tri- 

 angular and acutely pointed dorsally and tricuspid on the 

 sides. 



Colour. — Chocolate brown above, with ill-defined darker 

 cross-bars. There are indications of some dark blotches on 

 the sides, and the hinder half of the head, body, tail and fins 

 bear many creamy-white spots which tend to form rings. 



Total length of adult male 414 mm. 



