ADDITIONS TO THE FISH FAUNA OF LORD HOWE ISLAND — WAITE. 41 



paralyses many more animals than it can consume— the residue 

 falling to the lot of the fishes, which, as already noted, may be 

 present to the number of ten. 



Apogox norfolcensis, Ogilby. 

 Apogo7i norfolcensis, Ogil., Proc. Linn. Soc. N.S. W. (2), ii., 1887, 

 ' P- 990. (Plate vi.) 



The specimen figured, of the natural size, is the largest of five 

 examples received from Mr. Farnell per the Fishery Commissioners. 



ThALAS.SOMA UMliROSTIGMA, RiippeU. 

 Julis umhrostigina, Ruppell, Neue Wirbelt. Fische, 1837, p. 11, 

 taf. 3, fig. 2. 

 This species, of which we have received an example 122 mm. 

 in length, has not been previously recorded from Australian 

 waters. The nearest published locality to Lord Howe Island is 

 Aneiteum, in the Kew Hebrides, whence there is an example in 

 the British Museum. Should the published colour illustrations 

 of the species be accurate, it must vary considerably; our example 

 is generally green, which is also the hue of the longitudinal m.ark- 

 ings on the dorsal and anal tins. The dark body markings are 

 more nearly represented by the figure of Eydoux and Souleyet,^" 

 than by that of Bleeker.^^ 



Iniistius cacatua, sp. nov. 

 (Plate vii.) 



All the fishes sent to the Trustees from Lord Howe Island by 

 Mr. W. S. Thompson in August last, have, with one exception, 

 been already recorded. 



This fish, a labroid, belongs to the ISTovacula group, and to the 

 restricted genus Iniistius, Gill, which differs from XyridUhys only 

 by having the two anterior dorsal spines produced and entirely 

 separated from the other portion. The following species seem to 

 enter the genus: — XyricJitltys pavo, Cuv. tt Val. (the type); Iniis- 

 tius viiind [corpus, Gill; Nuvacula tetrazona, Bleek. ; Xyrichthys 

 dea, Schleg. ; and Novacxda aneitensis, Giinth. The two latter, 

 however, scarcely satisfy the definition of the genus. 



Novacula kallosoma, Bleek., has features which also ally it with 

 Iniistius; indeed, if the various divisions are worthy of name, 

 they are scarcely entitled to more than sub-generic rank, while, as 

 Jordan remarks,'-' "It is not unlikely that it will be found necessary 

 to unite Iniistius, Hemipferonotus, XyriclitJiys, and Xyrula into 

 one genus, as Gunther has done. In this case the name to be 

 used is Hemipteronotus, not Novacula nor Xyrichthys." 



1" Eydoux and Souleyet — Voy. Bonite, Poiss., pi. vi., fig. 2. 



11 Bleeker— Atlas lehth., taf. xxxiv., fig. 2. 



1-' Jordan— Report U.S. Comm. Fish, 1887 (1891) p. 662. 



