BY J. DOUGLAS CGILBY. 23 



opercle nal:ed. Most of the scales of the body and opercles 

 with from 1 to 4 subsidiary squamulae. 



Third dorsal spine longest a little shorter than the 

 snout and 1-35 in the longest ray.* Anal fin originating 

 below the 2nd dorsal ray and conterminous with the soft 

 dorsal, its last ray in both sexes longest but not reaching 

 to the caudal. Caudal fin rounded, the peduncle long, 

 2-2 times as long as deep.t Pectoral fin reaching to the 

 origin of the 2nd dorsal. Ventral rather more than midway 

 to the anal. 



Dark chestnut brown or purple, uniform or with the 

 scales of the lower sides and tail narrowly edged mth 

 yellow. Dorsal, anal, caudal, and ventral fins purple, the 

 anterior borders and the tips of the dorsals, the upper 

 border and tips of the upper rays of the caudal, and the 

 tips of the anal and ventral rays crimson, fading into saffron 

 or white after brief immersion in a preservative ; occa- 

 sionally the whole 2nd dorsal is crimson with the exception 

 of a basal purple band ornamented with a few clear spots ; 

 caudal and sometimes the last anal rays also with clear 

 spots, which may be large and few in number, but are more 

 commonly small and crowded ; pectorals uniform yellow, 

 with a large black white-edged basal ocellus. 



The " Crimson-tip Gudgeon " attains a length of 200 

 millim. and is one of the most common estuary fishes of 

 our southern Queensland Rivers, 8.rd its presence may 

 always be anticipated m any collection from the streams 

 running into Mcreton Bay. Personallv I have examined 

 specimens from the Tweed River, J Nerang Creek, the 

 Logan, Brisbane, and Pine River, Nocsa Creek, ard the 

 Mary River, and its range probably ext?nds well beyond 

 these limits. It. may always be recognised by the crimson 

 (white) tips lo the fins and by the squamul?e which cover 

 the anterior portion of the scales, and which are absent in 

 ail our other eleotrins. The only substance found in the 

 stomach of the specimen dissected was the head of a small 



* In the male fish the last dorsal ray is the longest and is considerably 

 produced beyond the others, in the female the 2nd or 3rd ray is the longest, 

 1*5 time the length of the last ray. 



t The peduncle is more slender in the immature than in the adult. 



I Thus adding another genus and species of eleotrin to the fauna of 

 New South Wales. 



