112 "ENDEAVOUR" SCIENTIFIC RESUftTS. 



broad simple one in front. The caudal is deeply forked. The 

 upper pectoral rays are the longest, and t be margin is rounded. 

 Nearly all the fin-rays are articulated, though the joints are very 

 widely spaced and difficult to see. The first five of the dorsal may 

 be true spines, but the sixth and those following it are simple rays. 

 The anal has apparently one spine, all the rest being rays. There 

 is no ventral spine. 



Colour. — Apparently silvery in life, with traces of darker 

 cross-bands. A dark bar crosses the cheek below the eye, and a 

 second one descends from the hinder border of the preoperculum 

 to before the ventrals. Indications of four or five more occur on 

 the back, and a striking blackish spot covers the bases of the 

 anterior rays of the second dorsal and the back below them. The 

 first dorsal is partly dusky, and the anterior portion of the anal 

 is blackish. The ventrals are dusky with a round black spot in 

 the middle of their length, and their tips blackish. Each lobe of 

 the caudal is crossed by three broad oblique dark bars. 



Described from two specimens, 96-108 mm. long, from the 

 preorbital to the middle caudal rays. The larger one belongs to 

 the Western Australian Museum, and was collected at Fremantle ; 

 the other was trawled by the " Endeavour " somewhere between 

 Cape Naturaliste and Geraldton. Both are imperfect, and the 

 accompanying figure has been prepared partly from one and 

 partly from the other. The larger specimen retains sufficient of 

 its scales to show their disposition, but they cannot be counted, 

 and are therefore only approximately correct in my drawing. 

 The form of the fins is best shown in the small example, but the 

 rays connecting the first and second portions of the dorsal and 

 anal are damaged in both specimens. 



A third and larger specimen, 117 mm. long, differs from the 

 others in being somewhat more elongate and in having the fins 

 proportionately lower. It was collected in Doubtful Island Bay, 

 on the southern coast of West Australia, in 20-25 fathoms. 



Family ZEID^E. 



Genus Cyttosoma, Gilchrist. 



Cyttosoma, Gilchrist, Marine invest. S. Afr., iii., 1901, p. 6 

 (C. boops, Gilchrist). 



Body compressed, back abruptly elevated behind the head. 

 The scales on the sides are small, imbricate, cycloid and 

 deciduous ; on the nape and top of the head, and along the 

 ventral profile they are adherent, juxtaposed, and tubercular, and 

 more or less rough with upstanding spinules. Those along the 



