Snails and Chitons, Eastern Pacific
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Scaled worm shell snail
Scaled worm shell, Thylacodes squamigerus or Dendropoma rastrum
Family Vermetidae
Just poking its head out is a species of snail in the family Vermetidae. Its tubular shell is attached to the substrate and can be mistaken for a worm tube. Unlike shells made by worms, the snail shell comprises three layers, with an inner lining of shiny nacre.
