n.feathery colony of long-branched stems bearing stalkless paired polyps

Growth and form in calyptoblastic hydroids; comparison of a campanulid, campanularian, sertularian and plumularian
XLVII.â??On the morphology of the reproductive system of the Sertularian zoophyte, and its analogy with the reproductive system o...
On the Structure of the Claviform and Sertularian Zoophytes
Descriptions of three new species of Sertularian Zoophytes
Growth and form in calyptoblastic hydroids. I. Comparison of a campanulid, campanularian, sertularian and plumularian (p 297-335)
On Functional Specialisation of Individuals in Animals and Plants, with Particular Reference to Analogies between the Sertularian Zo...
VIII. On Functional Specialisation of Individuals in Animals and Plants, with Particular Reference to Analogies between the Sertular...
Report on the Hydroida collected during the Exploration of the Gulf Stream by L F de Poutalès
Additions to the Hydroid Fauna of the Bermudas
Regression and replacement of hydranths in thecate hydroids, and the structure of hydrothecae