Ephyra :: Ephyra (n.) A stage in the development of discophorous medusae, when they first begin to swim about after being detached from the strobila. See Strobila..
Gephyrea :: Gephyrea (n. pl.) An order of marine Annelida, in which the body is imperfectly, or not at all, annulated externally, and is mostly without setae..
Gephyrean :: Gephyrean (a.) Belonging to the Gephyrea. -- n. One of the Gerphyrea.