BY WILLIAM MACLEAT, F.L.S., &C. 171 



Pktroscirtes Wilsoni. n. sp. 



D. 26. A. 22. V. 2. 



Height of body one-fifth of the total length. Profile perpen- 

 dicular, with a high compressed crest as in P. cristicejos. Several 

 of the rays, from the 17th backwards, of the dorsal fin terminate 

 in long filaments. Colour (in spirits) dark grey, a row of moderate 

 sized spots along the median line of the side towards the tail, and 

 a row of smaller spots beneath. The dorsal fin is indistinctly 

 speckled, the anal is blackish margined. The pectorals are colour- 

 less. In the fresh specimen the colours were probably more 

 brilliant, and possibly reddish in some places. 



This fish was found lately at the north shore of Port Jackson 

 by Mr. J. D. Wilson, in an empty shell. 



Atherinosoma Jamesonii. 



D. 5/8. A. 12. L. lat. 28. L. tr. 5-6. 



Height of body over 4 times in the total length ; length of head 

 about the same. Eye large, head between the eyes broad and flat. 

 Mouth small, slightly oblique, the edge of each jaw armed with a 

 row of strong recurved teeth, similar teeth on the vomer. Scales 

 large, cycloid, no lateral line. The 1st dorsal fin is situated in 

 front of the middle of the back, and has the 1st spine terminating 

 in a long filament, the others are filamentose, but shorter ; the 

 2nd dorsal commences opposite the middle of the anal, and has 

 the first rays elevated ; the anal also has the first few rays elevated ; 

 the caudal fin is moderately forked ; the ventrals reach to the 

 anus ; the pectorals reach to the 7th body scale. Colour greenish 

 yellow, with minute microscopic dots all over but thickest towards 

 the back, a narrow black line on the side along the middle of the 

 3rd row of scales ; the first rays of the 2nd dorsal and anal fins 

 black ; the 1st dorsal fin finely speckled, the ventrals colourless. 

 Length, 1^ to 1^ inch. 



Bremer Paver, a tributary of the Brisbane. Fresh water. 



This very curious little fish which I name after its discoverer, Mr. 

 Jamieson of Ipswich, is most certainly akin to the Atherinosoma 



