Bimeria Wright, 1859

Diagnosis. (Bouillon et al., 2006). Colony stolonal or with erect branching hydrocauli, stem with firm perisarc enveloping hydranth, extending as a pseudohydrothecal sheath over proximal portion of tentacle, hydranth ovoid to vasiform, hypostome dome-shaped, one or two close whorls of tentacles, gonophores as fixed sporosacs.