272 BULLETIN OF THE BUREAU OF FISHERIES. 



Family GEKRID.€. 

 XYST£SIA Jordan & Evermann. 



729. Xystaema gigas (Giinther). Matu loa. Samoa; Fiji; Tonga. 



Gerresgigas Giinther, Cat., iv, 262. Tonga. GiinthtT, Fische der Su(isec, 30. taf x.\iv, fig. a, Tonga, Fiji, Samoa 

 Life colors of a specimen from Apia called malu loa, silvery with faint dark shades; no bright 



colors; caudal pale edged; first dorsal elevated, its edge dusky. 



One large specimen and one very small one taken at Apia. Apparently this species is distinct 



from A', ohlongum (Cuvier & Valenciennes) of India, with which Day unites it. X. oblom/um is still 



more elongate. 



730. Xystaema argyreum (Forster). Matu. Samoa; Tahiti; Waigiu; Strong I.; Tanna; Aus- 



tralia; Kast Indies. 

 {(Ttrre^ waigiensis Quoy it Gaimard. ) 



Compared with A', argyreum, X. gigas is less silvery, and has more distinct streaks along the row s 

 of scales. In A', gigas the snout is longer than eye; the body is more elongate, and the head propor- 

 tionately longer. 



This species is more common at Samoa than A', gigaii, but seems to reach a rather smaller size. 

 We have 8 examples of different sizes from Apia and Pago Pago. Life colors of an example from 

 Apia, silvery, without dark streaks; ventral and anal light yellow; other fins scarcely yellowish; edge 

 of spinous dorsal dusky. 



731. Xystaema aTobreviatum (Bleeker). New Guinea (Ramsay & Ogilby); East Indies. 



This can not be Sparus erylhrourus of Bloch, which is a species of Xystsema, said to be from Japan. 

 Bloch's type is more elongate, the depth being 3i inches, the total length lOi inches in the type in the 

 Museum of Berlin. 



732. Xystaema macrosoma (Bleeker). Samoa (Kner, Sitz. Ak. Wiss. Wien 1868, 9, Savaii); 



Admiralty Is. (Gunther); East Indies. 

 This species, recorded liy Kner from Samoa, was not seen by us. 



733. Xystaema punctatum (Cuvier & Valenciennes). Vanioolo; New Britain and New Hanover 



( Peters ) ; East In<lies. 

 (Gerres filamentosus Cuvier & Valenciennes, adult.) 

 Valenciennes describes Gerres punctalus as having the depth 3i in the total length with caudal. 

 This is true of the very young only (2| inches long). In the adult it is 3 or a little less. Gerres punc- 

 tatus is, however, evidently the same as G. filamentosus, and the name occurs on an earlier page of the 

 same work. 



734. Xystaema acinaces (Bleeker). New Guinea (Macleay); East Indies. 



735. Xystaema poeti (Cuvier & Valenciennes). Milne Bay, New Guinea (Macleay) ; East Indies. 



736. Xystaema macracanthum (Bleeker). New Guinea (Macleay); East Indies. 



TJLJEMA Jordan & Evermann. 



737. trisema bispinosum (Alleyne & Macleay). New Guinea. 



Gerres bispitwsus Alleyne A Macleay, Proc. Linn. .Soc. N. S. W. 1876, 273, Hall Sound. .\nal rays 11, S. 



Family EQUULID.-E. 



EQUULA Cuvier. 



Eqmila Cuvier, Regne Anim., ed. 1, vol. ii, 323, 1817 { insidiator) . 

 Deiv.iimenlum Fowler, Journ. Ac. Nat. Sci. Phila. 1904, 517 (insidiator). 



738. Equula insidiator (Bloch). Tahiti (Kner); East Indies. 



This species is separated by Fowler from Leiognathus as the type of a distinct genus Dereximentum, 

 characterized by the vertical mouth. But the same species is the original type of the genus Equula, 

 which has been regarded as a synonym of Leiognalhus. 



