- Pirenella
- A genus of marine and brackish water operculate (prosobranch) snails. P. conica is the initial intermediate host of Heterophyes heterophyes, the fish-borne fluke of humans and fish-eating birds and mammals along the Mediterranean and Red Sea coasts.
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Pi·re·nel·la (pi″rə-nelґə) a genus of snails of the family Cerithiidae, order Mesogastropoda. P. coґnica is a species found in Egypt that is a host of the intestinal fluke Heterophyes heterophyes.
Medical dictionary. 2011.