30 Dr. Richardson on the Ichthyology of Australia. 



be ascertained without removing the scales from their bases, they have 

 been set down as 15 and 10. The anal is also lower, and its spines 

 considerably softer than those of the Yapilli : the soft part is more 

 obtusely rounded than in Yapilli. The caudal is slightly crescentic 

 on the margin. The ventrals resemble those of Yapilli, but they 

 are not so long, and the triangular scaly folds outside their bases are 

 much smaller and less acute. 



Scales. — The scales are smaller than in Yapilli, and more densely 

 and less regularly tiled. The structure of the lateral line is alike in 

 both. Each scale is roundish or quadrangular, with the corners 

 rounded off : the exterior margin is finely toothed, the adjoining sur- 

 face rough, and the basal half marked by about eighteen furrows, 

 which produce crenatures on about one-third of the margin of the 

 scale. There are about sixty-eight scales in a longitudinal row be- 

 tween the gill-opening and caudal fin. Short fillets of scales recline 

 against each dorsal spine as in Yapilli, and the bases of the articulated 

 parts of the dorsal and anal, and of the caudal, are scaly, precisely 

 as in that fish. 



Teeth. — The dentition is very similar to that of Yapilli. There 

 are three canines crowded on one side near the symphysis, and about 

 fourteen short conical ones in the exterior row beneath the lip. The 

 minute teeth on the concave surface of the jaw are more acute, and 

 merit the name of villiform better than in Yapilli : the cluster of 

 minute teeth near the symphysis of the lower jaw is longer and more 

 crowded. The eight outer conical teeth in that jaw exist as in Yapilli, 

 but they are followed by five smaller and closer ones in the same 

 row, which are not present in that species. The vomer has been cut 

 away ; but a small projecting lobe of the edge of the palate bone is 

 rough with minute setaceous teeth, which may be readily felt with 

 the finger, yet cannot be seen by the unassisted eye. 



Colour. — The back of the dried specimen has a darkish and some- 

 what clouded tint, which gradually fades on a level with the upper 

 edge of the pectorals into the pale and spotless under surface. All 

 the fins are pale and unspotted, and seem as if they had been yellow 

 or orange-coloured when fresh. The remains of a yellowish tint 

 prevails on the caudal and extends to its scaly base. A dark spot 

 girdles the base of the three upper pectoral rays, and there seems to 

 have been another on the lower lip, near the symphysis. 



Dimensions. inches, lines. 



Length from intermaxillary symphysis to end of caudal 14 



. base of ditto 2 9 



anus i 7 6 



beginning of dorsal... 4 11 



tip of gill-flap 3 10 



centre of orbit 2 2 



Diameter of orbit 10^ 



Length of pectoral 2 10 



ventral 2 10 



whole dorsal .5 8 



spinous part of ditto 3 3 



articulated part of ditto 2 5 



