corymorphidæ

Century Dictionary and Cyclopedia

1. A family of gymnoblastic tubularian hydroids, typified by the genus Corymorpha, in which the stalk of the solitary polyp is clothed with a gelatinous periderm, attaches itself by root-like processes, and contains radial canals which lead into the wide digestive cavity of the polyp-head. The freed medusa is bell shaped, with one marginal tentacle, and bulbous swellings at the end of the other radial canals.