Osburn, R. C. (1953). Bryozoa of the Pacific Coast of America, Part 3. Cyclostomata, Ctenostomata, Entoprocta, and Addenda. Allan Hancock Pacific Expeditions. 14(3), 613-841.
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Osburn, R. C.
1953
Bryozoa of the Pacific Coast of America, Part 3. Cyclostomata, Ctenostomata, Entoprocta, and Addenda