BY W. MACLEAY, F.L.S. 309 



fin : the first short, the second and third the longest and nearly 

 equal, the second dorsal has one long, straight spine and eight 

 raj^s, gradually increasing in length ; the anal is like the second 

 dorsal. Scales large ; mouth protractile. Colour variable, in some 

 the back is of a purple-grey with the belly and fins yellow, in 

 other specimens the back is green and the belly white with a 

 black longitudinal spot on its lower part, the fins are of an orange 

 colour bordered with black, the ventrals entirely of that colour ; 

 the body has more or less black spots ; the eye is silvery. Average 

 length from 2 J to 3 inches. 



Yarra Eiver, in brackish water. 



In accordance with Count Castelnau's views I place this Fish 

 near Psammoperca, but I suspect its affinity is more to the 

 Apogonina. 



Genus Exoplosus, Lacep. 



Body and vertical fins greatly elevated. Seven branchiostegals. 

 All the teeth villiform without canines, teeth on the palatine 

 bones and on the tongue. Two dorsals ; operculum without spine ; 

 prseoperculum serrated and with spinous teeth at the angle. 

 Scales moderate. Australian seas. 



13. ExoPLOsus ARMATUS, White. 



Yoy. N. S. Wales, pi. 39, fig. 1. Gunth. Cat. Fishes, I., p. 81. 



'' Old Wife " of the Sydney Fshermen. '' Bastard Dorey " of 

 the Melbourne Fishmarket. 



D. 7'. 1/14-15. A. 3/15. Coec. pylor. 15. Yert. 25. 



Upper profile of head very concave, body one half as high as 

 long, much elongate and pointed. White, with eight black 

 transverse bands. 



East and South coasts of Australia. 



