426 



FLATFISHES (HETEROSOMATA) 



peduncle much deeper than lony. Greyish, with traces of some irregular darker 

 blotches ; an indistinct dark spot edged with paler below and a Uttle behind pectoral 

 lin ; body and fins on blind side irregularly blotched and spotted with grey. 



Type. — Canterbury Museum, Christchurch. 



Distribution. — New Zealand. 



Specimen Ex.'iMiNEn : 



I (460 mm.). I'ini.ini. Canterbury Mus. 



2. COLISTITM GUNTHERI (Hutton). 

 " 15RI1.I, '■,] 



Ammotrciti ^untheri, Hutton, 1873, Trans. Proc. N.Z. Inst., v, p. -67, pi. xi, fig. 82a ; Waite, 1911. 



Kec. Canterbury (N.Z.) Mus., i, p. zil, pi. xi ; Phillipps, 1921, N.Z. J. Sci. Tech., iv, p. 122, 

 CuHstitnn guntheri, Norman, 1926, Biol. Res. " Endeavour ", v, p. 274 ; Phillipps, 1927, N.Z. Mar. 



nept.. Fish. Bull., i, p. 2R. 



and .\ndcrtun. 



Er.r.s. l..u;v.*; Asr. V< 

 Uull.X.Z. Board .Sci. .\rt. 



Flc. iiz.—CoUstiH 



Depth ot body il to 2! m the length, length of head 3J to 3J. Rostral hook 

 short, not extending downwards to le\el of hinder end of maxillary of ocular side. 

 Lower eye a little in advance of upper, diameter of which is 8J to q\ in length of 

 head and about twice width of interorbital space, which is almost entirely scaled. 

 Maxillary not reaching anterior edge of eye, length on ocular side 4^, on blind side 

 4 in length of head ; lower jaw 3J in head : 10 to 13 broad tentacles forming a fringe 

 on lower lip of ocular side. Band of teeth in lower jaw i\ times as long as broad, 

 that in upper jaw about 4 times. 38 to 41 gill-rakers on lower part of anterior arch. 

 Scales of ocular side ctenoid, the denticulations strongly developed ; those of blind 

 side cycloid ; some of the scales on blinil side of head forming membranous processes ; 

 84 to 8y scales in lateral line. Lateral line with a slight curve above pectoral fin ; 

 supratemporal branch feebly developed or absent. Dorsal go-92 ; highest rays 2^ 

 in length of head ; membranous folds on blind side of rays well developed, those of 

 anterior rays short, and with projecting processes with irregular or crenulated edges. 

 ,\nal 6f>-6g ; similar to dorsal. I'ectoral of ocular side with (11) 12 rays (lo branched), 



