Possible confusions
la dentelle des grottes mais la colonie ressemble à une coupe, sans volutes
Reteporella grimaldii (Jullien in Jullien & Calvet, 1903)
BioObs, 25/03/2020 : Reteporella grimaldii (Jullien in Jullien & Calvet, 1903), https://bioobs.fr/en/species-sheets/389
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