I'm listing all mollusk families with indication of presence or lack of an
operculum.
Does any of you whether an operculum is present or absent in the following
families
(Gastropoda, Prosobranchia, Caenogastropoda)?
1) Micromelaniidae (Superfamily Rissoacea) Freshwater.
2) Paedophoropodidae (Superfamily Eulimacea) Marine.
3) Pseudosacculidae (Superfamily Lamellariacea) Marine.
4) Asterophilidae (Superfamily Lamellariacea) Marine.
I look forward to hearing from you. Thanks.
Regards,
Juan Jiménez-Cánovas
Murcia, Spain
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