Polyps of the families Atorellidae and Nausithoidae (Scyphozoa: Coronatae) new to the brazilian fauna

@article{Jarms2002PolypsOT,
  title={Polyps of the families Atorellidae and Nausithoidae (Scyphozoa: Coronatae) new to the brazilian fauna},
  author={Gerhard Jarms and Andr{\'e} Carrara Morandini and F{\'a}bio Lang da Silveira},
  journal={Biota Neotropica},
  year={2002},
  volume={2},
  pages={1-11}
}
Key MethodCifistomas solitarios de cifozoarios da ordem Coronatae foram triados a partir de amostras coletadas em 12 estacoes oceanograficas do projeto Revizee-Score Sul/Bentos na costa brasileira. Foram encontrados 201 especimes, entre as profundidades de 133-808 m, crescendo sobre corais petreos. Estes cifistomas foram identificados nas familias Nausithoidae (186) e Atorellidae (15) com base na morfologia externa dos tubos peridermicos. O numero e forma dos espinhos internos, e presenca de dentes de…

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References

SHOWING 1-10 OF 25 REFERENCES

Nausithoe aurea n. sp. (Scyphozoa: Coronatae: Nausithoidae), a species with two pathways of reproduction after strobilation: sexual and asexual

Nausithoe aurea, a new species of scyphozoan Coronatae, is described from Sao Paulo State, Brazil. The solitary scyphistomae, with some zooxanthellae, strobilated producing planuloids and medusae;

A new species of coronate Scyphomedusa from the Bahamas, Atorella octogonos

A fourth species of Atorella has, indeed, eight gonads, which may be the link that is needed to postulate derivation of this group from the Nausithoidae, and this species has been reported.

Sexual reproduction of Nausithoe aurea (Scyphozoa, Coronatae). Gametogenesis, egg release, embryonic development, and gastrulation*

SUMMARY: The structure of the ovaries and testes of Nausithoe aurea, reared in the laboratory, is described to update the knowledge of coronate scyphomedusae gametogenesis and early development. The

THE HOLOPELAGIC LIFE CYCLE OF THE DEEP-SEA MEDUSA PERIPHYLLA PERIPHYLLA (SCYPHOZOA, CORONATAE)

It is shown that there has been a dramatic change in the population structure in 1992 and 1997 in Lurefjorden, Norway, and it is the first scyphozoan life cycle with sexual propagation where the planula stage is missing.

The polyps of Coronatae (Scyphozoa), a review and some new results

  • Proceedings of the 6th International Conference on Coelenterate Biology (J.C. den Hartog, ed.). Nationaal Natuurhistorisch Museum, Leiden, p. 271-278.
  • 1997

Scyphomedusae from the Arcturus Oceanographic Expedition