44 THE PEOCEEDINGS OF THE LINNEAN SOCIETY 



I have much pleasure in naming this sort after Mr. W. Macleay, 

 who bearing the name of one of the most illustrious naturalists of 

 the century, has himself done so much for the zoology of Australia, 

 and who most nobly devotes a large fortune to promote the 

 knowledge of the productions of his adopted country. 



2. — PSEUDOAMBASSIS ELONGATUS.* sp. nOV. 



Form elongated; upper profile little convex ; two lines of scales 

 on the cheeks ; upper limb of the praeopercle very finely serrated 

 on the corner (four or five) and on the lower edge ; the lower 

 limb only serrated on its lower edge ; the caudal strongly 

 bifurcated with the ends pointed ; the general colour is grey 

 without any yellow tinge. 



Several specimens not much over one inch long. 



ACANTHOPERCA. nov. gen. 



One dorsal formed of two equal parts and received in a scaley 

 sheath on the back ; scales rather large ; opercle ending in an 

 acute angle over the base of the pectorals ; prgeopercle having 

 two ridges ; the upper one having two blunt spines at its lower 

 angle, and the lower one being straight at its posterior edge, but 

 strongly serrated at its angle and on its lower edge ; praeorbital 

 strongly serrated ; teeth villiform in both rows, and a few very 

 fine ones on the palatine bones ; mouth rather extensile ; max- 

 illaries extending as far as the anterior third of the eye ; lateral 

 line continuous extending on the base of the tail ; dorsal having 

 its two portions about equal ; the spinous formed of seven 

 strong spines, the first being very short, the second very long 

 contained only about twice in the height of the body, the others 

 going shorter ; the soft portion begins by a long, straight spine, 

 nearly two-thirds as long as the second of the spinous part ; the 

 rays number ten, and go on decreasing in height as they extend 

 backwards ; caudal strongly bifurcated ; anal with three spines, 

 the first of which is short, the second very large, flat, sword-like 



* The Amhassis jmpuensis, Macleay Pi'oc. Lin. Soc. of New South Wales, Vol. I, p. 226, 

 pi. V, fig. 4, forms a third sort of this genus. It is very much like viy first sort but quite 

 distinct. The profile is less elevated ; there is only one line of scales on the cheeks ; the 

 praeopercle has only one strong spine at its angle ; tlie lobes of tlic tail arc rounded ; it has 

 a general orange tint on the dried specimen. 



