BY KOBERT HALL, C.M.Z.S. 8S 



Two types of colour with intermediate stages of varia^ 

 tion in each type are shown : 



3a. Chestnut, with lateral transverse lines that 

 are too scattered and insufficiently pronounc- 

 ed to be bars. 



3b. Pale brown, with stronger indications of bars. 



The first develops into the pale phase, with well-defined 

 transverse bars, while the second evolves into the dark phase 

 with its undersurface of so deep a brown as almost to hide 

 the brown bars. 



A comparison would almost indicate that 3a. lives 

 upon a light bottom and 3i). upon a dark bottom. Their 

 ancestors probably did so. 



-I. Cristioeps australis, Cuv. and Val. — In April, 

 UM 1, I was ab'f^ to <i^atlier, in the D'Eiitreoasteaux, 

 Channel, by means of the dredge, four specimens of the 

 young ranging between 2.5 and 3.2 inches. The bodies in 

 all were of a uniform clear orange yellow colour, the fins 

 of the two larger specimens being also similar, though 

 paler. The two smaller specimens have all the dorsal and 

 anal fins striped longitudinally with iridescent colours of 

 pale green to blue and pale pink. The caudal fin is pale 

 ])ink, with a spot of pale green at its base. The youngest, 

 though a spirit specimen of twelve months, still shows 

 strongly the five bars of pale green with the pale pink be- 

 tween. Judging by these four specimens those delicate 

 colours are on the youngest, and disappear gradually wiiii 

 age. 



The species appears to be dimorphic, as Mr. McCul- 

 loch in his descripton says : "Its general colour is green, 

 with darker bands and silverv markings. "■'^■^* 



5. Trachinops caudimaculatus, McCov. — This is 

 the second record of the genus b.aving l)een found in 

 Tasnianian watersa. It is a young one of uniform pale 

 chestnut, with its caudal fin conspicuously and even more 

 strongly marked in this region than the adult specimen 

 captured with it The boundaries of this sagittate mark 



»**Rec. Austr. Mus., Vol. VII., No. 1; p. 40 (1908) 



