360 I4ECORDS OY THE AUSTRALIAN MUSEUM. 



Mitchell's name does not appear to have been again noted in 

 literature since he first used it, but as it is ten j'ears earlier tban 

 that of Richardson's Datnia elliptica it must take precedence. 



Family CH^ETODONTIU^E. 



Holacanthus duboulayi, Gunther. 

 (Plate xiv). 



Holacanthus duboulayi, Gunther, Ann. Mag, Nat. Hist. (3), xx., 

 1867, p. 67 ; Id. Macleay, Proc. Linn. Soc. N. S. Wales, ii., 

 1878, p. 352 ; Id. Klunzinger, Sitzb. Akad. Wiss. Wien, 

 lxxx. i., 1879, p. 361. 



A fine specimen has been presented to the Australian Museum 

 by Mr, F. B. Richmond. It was caught near Rat Island in 

 Port Curtis, Queensland, and is figured on PI. xiv. Other 

 specimens are in the collection from Port Darwin and Cape 

 York. 



Khanzinger and Macleay have noted considerable variation in 

 the arrangement of the lighter markings on the broad brown 

 body band. These may form either a network with the lines 

 descending from the back to the belly, or be longitudinal and 

 nearly straight. In others, again, as in that figured, they may 

 be absent and represented only by a few irregular spots 

 near the edges of the otherwise uniform brown surface. The 

 lines on the fins are characteristic, but appear dark violet in 

 some specimens and pale blue in others ; the margins of the bus 

 are similarly either light or dark. 



Family POMACENTRIDvE. 

 Dascyllus aruanus, Liimwus. 



Dascyllus aruanus, Gunther, Journ. Mus. Godeff., v., 1 s 7 7 , p. 



235, pi. exxiv., fig. B. 



Dascyllus aruanus vel blochii, Castelnau, Res. Fish. Austr. (Vict. 

 Offic. Rec. Philad. Exhibi), 1875, p. 33. 



This species was recorded from Queensland by Castelnau bui 

 does noi appear to have since been recognised From there. Hi, 

 (specimen was young and had a rounded instead of a bifid tail, 



and thinking lliat it might prove to b' a distinct species, lie 



proposed the alternative name blochii for it. I have examined 



