626 DESCRIPTIVE CATALOGUE OF AUSTRALIAN FISHES, 



caudal) ; space between the eyes very flat, and smooth, about the 

 width, of two diameters of the eye ; mouth small, the inter- 

 maxillary roundly enlarged in front, making the cleft of the 

 mouth horizontal in the middle and oblique on each side ; pree- 

 operculum very short with a straight posterior edge; teeth 

 numerous on the edge of the maxillary and mandibulary bones and 

 on the vomer ; the spine of both dorsal fins strong, as also of the 

 anal; the rays of the first dorsal filamentary, tail slightly 

 emarginate ; ventrals short, near the anus ; anal papilla none or 

 very small. Colour reddish chestnut, with a very thin, sometimes 

 inconspicuous black line along each side of the body. Fins 

 immaculate. 



Eivers of Northern Queensland. 



539. Aristeus lineatus, n. sp. 



D. 1/4 1/11. A. 18. L. lat. 30. 



The same very compressed form as^. Fitzroyensis, mouth, head 

 and eye also almost the same, height of body one-third of length 

 without the caudal fin. Scales cycloid, larger behind than in 

 front ; the rays of the dorsal fins mostly ending in filaments, but 

 not much prolonged ; caudal fin rather long, emarginate. Silvery: 

 with a broad blackish band along the middle of each side, with 

 faint traces of a similar band on the back and belly ; the dorsal, 

 caudal, and pectoral fins faintly marked with black ; the ventrals 

 with the outer ray and the anal with the margin, deep black ; 

 the membranes of both of a carmine red tinge. 



Eichmond Eiver. Length three inches. 



G-enus Callionymus, L. 

 Head and anterior part of the body depressed, the rest sub- 

 cylindrical, naked. Head triangular, with the cleft of the mouth 

 narrow, horizontal, and with the upper jaw very protractile. 

 Eyes of moderate size, more or less directed upwards. Teeth 



