Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
A division of hydroids comprising those which have thehydranths in thecæ and the gonophores in capsules. The campanulariansand sertularians are examples. Called also Thecata. See Illust. underHydroidea.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
