Akera is a marine genus of sea hare in the family Akeridae, known from the late Callovian (Jurassic) to the recent periods.
Akera bullata, named the royal flush sea slug, is a species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares. This species is the only European representative of the genus Akera.
Raphitoma baudoni is an extinct species of sea snail, a marine gastropod mollusc in the family Raphitomidae.
Raphitoma boutillieri is an extinct species of sea snail, a marine gastropod mollusc in the family Raphitomidae.
Amblyacrum dameriacense is an extinct species of sea snail, a marine gastropod mollusc in the family Mangeliidae.
Trophonopsis bonneti is an extinct species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Alvania houdasi is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Acrilla gallica is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acrilla fayellensis is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.
Acteon chevallieri is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon procerus is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon sphaericulus is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon turgidus is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Acteon gmelini is an extinct species of sea snail, a marine gastropod mollusc in the family Acteonidae.
Admetula evulsa is an extinct species of sea snail, a marine gastropod mollusk in the family Cancellariidae, also referred to as the nutmeg snails.
Akera bayeri is a species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares.
Akera julieae is a species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares.
Akera silbo is a species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares.
Akera soluta is a species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares.
Akera striatella is an extinct species of sea snail, a marine opisthobranch gastropod mollusk in the family Akeridae, a family that is related to the sea hares.
