Knobby Snail, Modulus tectum

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Updated 12/11/2020

Family Modulidae

INDO-WEST PACIFIC / HAWAII

Modulus tectum



Kaunolu tidepool, Lana'i
Kahalu'u tidepool, Hawaii

KNOBBY SNAIL

Uncommon under stones in shallow water. Feeds upon filamentous algae. Orange and green is animal visible beneath a transparent operculum. Attains 1 inch. Hawaii & the Indo-West Pacific.