18 FISHES OF NEW ZEALAND. 



26. NAUCRATES DUCTOR. L. 



Pilot Fish. 

 iV. ductor, Giintli., II., p. 374. 



^- '^-^\ ^6:28 '' ^- 16:i7- 

 Bluish, mth five to seven dark vertical bars (GUnth.) 



Same distribution as the genus. 



The Pilot Fisli is commonly reported to be found on our coasts, and 

 Dr. Hector informs me that he obtained one in Dusky Bay. 



I have seen no specimens. 



CYTTID^. 



Body much comjiressed and elevated, with small or iiidimentaiy 

 scales, sometimes toith hony 2^rotuberances ; spinous portion of dorsjil less 

 developed than the soft ; caudal rounded ; venti-als thoi'acic ; minute 

 teeth in both jaws ; seven or eight branchiostegals ; vertebrse more 

 than 10/14. 



Zeus. 



Mouth wide ; scales veiy small or absent ; a series of bony plates along 

 the base of the dorsal and anal fins, and another on the abdomen ; 

 branchiostegals seven. 



Atlantic, Japanese, and Australian seas. 



27. ZEUS FABER. L. CM. 



John Dory. 



Z. australis, Pvich., pp. 36, 138, pi. 25. Z. fiber, Giinth., II., 393. 



D. 10 I 24; A. 4 | 22. 



Eight double spined plates on each side of the soft dorsal, and seven 

 along that of the anal ; abdominal plates with very short blunt spmes. 



A rou.nd black spot on the middle of each side. 



A skeleton is in the Museum from Kapiti, at the west entry of Cook 

 Straits ; also at Tauranga. Distribution same as the genus. 



Cyttus. 



Body with very small scales ; mouth protractile ; two contiguous 

 dorsal fins ; anal with two spines ; no bony plates along the base of the 

 dorsal and anal fins ; ventrals of one spine and six to eight soft rays. 



Australian seas ; Madeira. 



