Subgenus (Gaza) R. B. Watson, 1879
(5-4-1-3-2-11-13-6-2-0-0-0-0)

fischeri W. H. Dall, 1889
(5-4-1-3-2-11-13-6-2-1-0-0-0)
Fischer's Gaza
Ref. Abbott & Dance, 1982 p 40 c

rathbuni W. H. Dall, 1890
(5-4-1-3-2-11-13-6-2-2-0-0-0)
Rathbun's Gaza
Ref. Abbott & Dance, 1982 p 40 c
Keen, 1971 p 342 bw

superba (W. H. Dall, 1881)
(5-4-1-3-2-11-13-6-2-3-0-0-0)
Superb Gaza
Ref. Abbott & Dance, 1982 p 40 c
Amer. Fish. Soc., 1988 p 55