Claim: Whip fan nudibranch, a species found in the north Atlantic Ocean off the United Kingdom, Ireland and France, belongs to the Tritoniidae family of the Tritonioidea superfamily.
Evidence: The whip fan nudibranch, scientific name Tritonia nilsodhneri, is a species of dendronotid nudibranch. This species is found in the north Atlantic Ocean off the United Kingdom, Ireland and France. Family: Tritoniidae Superfamily: Tritonioidea