Gonionemus A. Agassiz, 1862

Watson, Jeanette E. & Govindarajan, Annette F., 2017, A new species of Gonionemus (Hydrozoa: Limnomedusae) from southern Australia, Zootaxa 4365 (4), pp. 487-494: 488

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Gonionemus A. Agassiz, 1862


Gonionemus A. Agassiz, 1862  

Diagnosis. Hydroid: small, solitary, without hydrorhiza, with conspicuous conical hypostome and a circlet of four to six long tentacles. Medusa buds, frustules, and cysts, formed by asexual budding. Medusa: apical peduncle slight or absent, four simple radial canals, no centripetal canals, folded gonads on radial canals, marginal tentacles all of one kind, evenly distributed, with adhesive organs, statocysts if present, enclosed in the mesoglea.