title: Calmidae
text: # Calmidae
  
  Calmidae is a taxonomic family of sea slugs with only one genus and two species. These are specifically aeolid nudibranchs. They are marine gastropod molluscs in the superfamily Fionoidea.
  
  This family has no subfamilies.
  
  ## Taxonomic history
  
  The genera in this family were moved to the family Fionidae as a result of a molecular phylogenetics study.
  
  ## Biology
  
  Species in this family have an unusual diet for Nudibranchs. They feed on fish eggs.
  
  