An athecate hydrozoan, Serehyba sanctisebastiani, representing a new genus, is described. It possesses gonosomes with a cormidium-like structure unique among tubulariids: a distal set of branched nematophores and a proximal gonodendron. S. sanctisebastiani is apparently transitional between the families Tubulariidae and Corymorphidae. It is a symbiont of the gorgonian octocoral Lophogorgia punicea (Milne Edwards & Haime, 1857).

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Journal Bijdragen tot de dierkunde
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Released under the CC-BY 4.0 ("Attribution") License

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da Silveira, F. L., & Migotto, A. E. (1984). Serehyba sanctisebastiani n. gen., n. sp. (Hydrozoa, Tubulariidae), symbiont of a gorgonian octocoral from the southeast coast of Brazil. Bijdragen tot de dierkunde, 54(2), 231–242.