BY W. MACLEAY, F.L.S 59 



Dorsal spines moderately strong-. The height of the body is one- 

 half of the length (the caudal fin not included). 



Port Darwin. One very young specimen almost entirely 

 yellow. 



658. Ampiiipeion tricolor, Gunth. 

 Gunth., Cat. Fishes IV., p. 8. 



D. 10/16-17. A. 2/14-15. L.lat. 56. L. transv. 7/19. 



Blackish-brown : thorax, all the lower parts, and the free 

 portion of the tail dull orange-coloured ; a pearl-coloured band, 

 edged with black, from the nape of the neck across the opercles. 

 Ventral, anal, and caudal fins dull orange-coloured ; the two 

 former edged with black — the ventral exteriorly, the anal 

 inferiorly. Prajorbital and praeoperculum strongly serrated. The 

 dorsal fin is nearly even, the middle and posterior spines being 

 about the same length. Caudal rounded. The height of the 

 body is one-half of the length, (caudal fin not included). 



Port Darwin. 



659. AjipmrRioN Euppelii, Casteln. 

 Proc. Zool. Soc, Victoria, Vol. II., p. 91. 



D. 10/18. A. 2/14. L. lat. 38. 



Height of body twice and two-thirds in total length, diameter 

 of eye three times in the length of the head ; the upper profile 

 very convex ; the lower jaw longer than the upper; the infra- 

 orbital very strongly serrated ; the snout considerably shorter than 

 the diameter of the eye ; the preeoperculuni feebly denticulated 

 on its posterior edge, and not at all on the inferior one ; the 

 operculum is very strongly serrated and four-lobed. Dorsal fin 

 equal, without notch, caudal rounded, with the central rays 

 prolonged. General colour dark brown, much paler in young 

 specimens, with a very large, black blotch covering all the back 

 and the sides up to the base of the pectoral fins, and two pearly 



