Ris·soi·dae | \ rə̇ˈsōəˌdē, -sȯi(ˌ)dē \
Definition of Rissoidae
: a large family of marine and freshwater snails (suborder Taenioglossa) with a long snout, ciliated tentacles, and eyes on small prominences at the base of the tentacles — see rissoa
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