400 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



spine as long* as the space from the snout to the anterior edge of 

 the orbit ; the barbs of its posterior edge moderate, directed 

 downwards ; those of the anterior very small, only visible on the 

 superior half of the spine, and the two series only separated by a 

 longitudinal sulcate ; this dorsal spine is inserted over the 

 anterior third of the orbit ; the second dorsal has thirty-eight 

 rays ; the caudal is rounded ; anal with thirty-five rays. 



Of a greyish yellow becoming brown on the back ; belly of a 

 dirty white ; fins of a bright yellow ; the posterior half of the 

 caudal of a dark colour. 



The specimen is over ten inches long, it bears no trace of 

 spines on the tail ; obtained in October. 



Dr. Gunther places ludis with those species having only two 

 series of barbs on the dorsal spine ; but I believe there is no doubt 

 that this is Richardson's species ; these anterior barbs are small, 

 and are perhaps missing in some specimens ; the specimen I 

 described under this name, Proceed. Zool. Soc. of Vict., Vol. II, 

 p. 54, does not belong to this species, and is probably Freycineii 

 of Hollard. 



MONACANTHDS PRASINUS. 



Monacantlius prasinus, Cast., Proceed. Zool. Soc. Vict, Vol. I., p. 

 205. 



Small specimen, similar to those fr m Victoria, but with the 

 lower part of the body of a silvery white ; procured in June. 



Aracana lenticularis. 



Aracana lenticularis, Gunth. Cat, Vol. VIII., p. 268. 

 Ostracion lenticularis, Richard., P.^.S., 1841, p. 21. 



Of a lilac pink, with yellow reflections ; on the sides and back 

 some spots of an ochreous-yellow, having the centre darker ; 

 lower parts of the body and mouth of a rose colour, becoming 

 darker towards their extremities. 



Tetrodon lunaris. 



Tetrodon lunaris, Block. Sclineid., p. 505. 



var. spadiceus, Richard. Sulphur, Fish, p. 12S, pi. 58. 



Enters Dr. Gunther's division; " back lower, not compressed; 



