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Montana Field Guide

Montana Field Guides

Creeping Ancylid - Ferrissia rivularis

Native Species

Global Rank: G5
State Rank: SNR

Agency Status

External Links

General Description
Ferrissia rivularis is a species of small freshwater snail or limpet, an aquatic gastropod mollusk in the family Planorbidae. They are small and conical shaped.

Observations in Montana Natural Heritage Program Database
Number of Observations: 14

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Relative Density



(Observations spanning multiple months or years are excluded from time charts)

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Citation for data on this website:
Creeping Ancylid — Ferrissia rivularis.  Montana Field Guide.  .  Retrieved on , from