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Dall (William Healey). Contributions to the Natural History of the Commander Islands. No. 6. Report on Bering Island Mollusca collected by Mr. Nicholas Grebnitzski.

[In Proc. U.S. Nat. Museum for 1886, pp. 209-219, October 11, 1886.]

In this paper seventy-five species are enumerated with notes and a summary and revision of the existing Knowledge as to the Mollusk fauna of the Commander Islands. The name 
[[underlined]] Osteochiton [[/underlined]] is proposed for the group typified by [[underlined]] Placiphora sinuata [[/underlined]]  Carpenter; Haloconcha for Lacunella Dall. (preoccupied by Deshayes) and a new variety, [[underlined]] abkaua [[/underlined]], of [[underlined]] Litorina sitkaua [[/underlined]] Phil. is described.


[[underlined]] Dall (William Healey) [[/underlined]]. Supplementary notes