Subgenus (Policordia) W. H. Dall, P. Bartsch & H. A. Rehder, 1938

(3-2-4-0-2-3-0-23-3-0-0-0-0)

alaskana (W. H. Dall, 1895)
(3-2-4-0-2-3-0-23-3-1-0-0-0)
Ref. Abbott, 1974 p 564

diomedea W. H. Dall, P. Bartsch & H. A. Rehder, 1939 [T]
(3-2-4-0-2-3-0-23-3-2-0-0-0)
Ref. Abbott, 1974 p 564

insculpta (J. G. Jeffreys, 1881)
(3-2-4-0-2-3-0-23-3-3-0-0-0)
Sculptureless Verticord
Ref. Abbott, 1974 p 564 d
Amer. Fish. Soc., 1988 p 49