Alvania simulans Locard, 1886 (original combination) Crisilla simulans is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

[1] Alvania simulans has a small (1.5-2mm) shell that is pearly white in color, and partially translucent.

[2] Crisilla simulans is found in the North Atlantic and European waters.

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