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"The Tubularidae are a family of hydroid polypes are for the most part social animals, frequently possessing a polypidom, which, however, when present, is of much less firm consistence than the horny framework of the Sertularidae. The polypes are never entirely retractable within their tubes; the upper extremity is enlarged into a clavate head, surrounded by a variable number of tentacles." — Goodrich, 1859

Tubularia coronata

"The Tubularidae are a family of hydroid polypes are for the most part social animals, frequently possessing…

Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes, almost all the members of which are marine.

Sertularia

Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes,…

Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes, almost all the members of which are marine.

Sertularia

Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes,…

Sertularia are members of the Protista kingdom. This is an example of the egg-producing gonophore.

Sertularia

Sertularia are members of the Protista kingdom. This is an example of the egg-producing gonophore.

Tubularia are members of the Protista kingdom. The pipe-coralline (Tubularia) is an example of another group of the hyroid zoophytes, almost all the members of which are marine.

Tubularia

Tubularia are members of the Protista kingdom. The pipe-coralline (Tubularia) is an example of another…

"A single hydriform person a bearing a stalk carrying numerous degenerate medusiform persons or sporosacs b." — Encyclopedia Britannica, 1893

Tubularia Indivisa

"A single hydriform person a bearing a stalk carrying numerous degenerate medusiform persons or sporosacs…