Ctenophora families

Cestidae is a family of comb jellies. It is the only family in the monotypic order Cestida. Unlike other comb jellies, the body of cestids is greatly flattened, and drawn out into a long ribbon-like shape. The two tentacles are greatly shortened, and two of the four ciliated comb rows are reduced. The unusual body form allows the animals to swim by means of muscular undulation, as well as by using their cilia. The largest species, belonging to the genus Cestum, can reach in length.

Bolinopsidae is a family of ctenophores.

Cryptolobatidae is a family of ctenophores. It is the only family in the monotypic order Cryptolobiferida and contains two genera, each with a single species.

Lyrocteis is a genus of benthic comb jellies. It is the only genus in the monotypic family Lyroctenidae.

Coeloplanidae is a family of comb jellies. It contains one genera.

Mertensiidae is a family of ctenophores belonging to the order Cydippida.

Eurhamphaeidae is a family of ctenophores.

Ocyropsidae is a family of ctenophores.