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54

on some species of mollusks of the Bering Sea and vicinity. 

[In Proc. U.S. Nat. Museum for 1886, pp. 297-309, plates iii and iv, October 19, 1886]

In this paper beside numerous notes and corrections in regard to previously known species the following are described and figured:

Bela sculpturata, B. krausei, B. solida, Cerithiopsis truncatum, Velutina conica, Cingula robusta var. martyni and var. scipio, Onoba cerinella, O. aleutica, Alvania castanea var. alaskana, A. castanella, A. aurivillii, and Macoma var. middendorffii. The following are figured for the first time: Maugilia aleutica, Bela lævigata, B. harpa and Trophon muriciformis. Maugilia funebale Dall is shown to be