Subgenus (Portlandia) O. A. L. Morch, 1857

(3-6-1-0-3-7-2-44-4-0-0-0-0)
[see also as Genus]

collinsoni W. H. Dall, 1919
(3-6-1-0-3-7-2-44-4-1-0-0-0)
[=Portlandia (Portlandia) arctica (W. H. Gray, 1824)]
Ref. Bernard, 1983 p 13
Bernard, 1984 p 16
Wagner, 1984 p 48
[see also under Family: YOLDIIDAE]