Superfamily: SEPTIBRANCHIA P. Pelseneer, 1888

(3-2-4-0-3-0-0-0-0-0-0-0-0)
Ref. Barnard, 1983 p 65
[=POLROMYACEA W. H. Dall, 1886]
Ref. Keen, 1971 p 297
Lindner, 1977 p 119