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Keywords from Image Description:
Mollusca . see Notes NYPL b. en Helix monodon Helix elevata Helix monodon var Helix fuliginosa Helix fallax Helix suppressa Helix cellaria Helix indentata Helix hirsuta Helix auriclata Helix intertexta Helix rufa Helix labyrinthica Helix ligera Helix minuta Helix multilineata Helix pennsylvanica Helix palliata Helix