Ringed Sap-sucking Slug: These slugs are all over the reef and blend very well. They eat algae which is good for the reef. See the two little horn like projections? One is for “smelling” the chemicals in the water, the other can detect the direction of the current. Between the two “horns” are two black dots that are photoreceptors or simplified “eyes” that detect movement around them.
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Ringed Sap-sucking Slug
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