tubicolae

from The Century Dictionary.

• A group of spiders which spin and inhabit a tubular web of silk, often strengthened outside with leaves or other materials; the tube-spinners. Compare Tubitelæ.
• A group of annelids.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A division of annelids including those which construct, and habitually live in, tubes. The head or anterior segments usually bear gills and cirri. Called also Sedentaria, and Capitibranchiata. See serpula, and sabella.