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"Diagram of a colony of Campanularia, showing four forms of persons. A, portion of a fixed colony; a, hydriform person; b, bud-bearing hydriform person (blastostyle); B, free-swimming colony, being sexless medusiform person (blastoscheme of Allmen), with modified medusiform persons budding from its radiating canals, as sporosacs." — Encyclopedia Britannica, 1893

Campanularia

"Diagram of a colony of Campanularia, showing four forms of persons. A, portion of a fixed colony; a,…

"Diagram of Clava, showing a hydriform person surrounded by a verticil of degenerate medusiform persons (sporosacs)." — Encyclopedia Britannica, 1893

Clava

"Diagram of Clava, showing a hydriform person surrounded by a verticil of degenerate medusiform persons…

"A, a hydriform person giving rise to medusiform persons by budding from the margin of the disc; B, free swimming medusa (Steenstrupia of Forbes) detached from the same, with manubrial genitalia (Anthomedusae) and only one tentacle." — Encyclopedia Britannica, 1893

Corymorpha

"A, a hydriform person giving rise to medusiform persons by budding from the margin of the disc; B,…

"Diagram of a colony of dicoryne, showing three forms of persons. a, normal hydriform person; b, modified bud-bearing hydriform person (blastostyle); c, degenerate medusiform persons (sporosacs)." — Encyclopedia Britannica, 1893

Dicoryne

"Diagram of a colony of dicoryne, showing three forms of persons. a, normal hydriform person; b, modified…

"Diagram of a colony of Hydractinia, showing four forms of persons. a, hydriform person; b, modified hydriform person, or blastostyle, bearing c, degenerate medusiform persons or sporosacs; d, modified hydriform person situated at the margin of the colony (dactylozooid)." — Encyclopedia Britannica, 1893

Hydractinia

"Diagram of a colony of Hydractinia, showing four forms of persons. a, hydriform person; b, modified…

"Diagram showing possible modifications of medusiform and hydriform persons of a colony of Siphonophora. n, pneumatocyst; k, nectocalyces (swimming bells); l, hydrophyllium (covering-piece); i, generative medusiform person; g, dactylozooid with attached tentacle, h; e, nutritive hydriform person, with branched grappling tentacle, f; m, stem. The thick black line represents endoderm, the thinner line ectoderm." — Encyclopedia Britannica, 1893

Siphonophora

"Diagram showing possible modifications of medusiform and hydriform persons of a colony of Siphonophora.…

"Hydriform person of Syncoryne, with medusiform persons budding from it, and shown in various stages of development, a, b, c, d, e." — Encyclopedia Britannica, 1893

Syncoryne

"Hydriform person of Syncoryne, with medusiform persons budding from it, and shown in various stages…

"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…