Tesserogastria Beyer 1959
Genus Tesserogastria Beyer, 1959 Diagnosis Crawling medusae with swimming capabilities; umbrella bell-shaped, margin thickened, provided with a great number of solid, Fliform tentacles inserted at varied levels, apparently not forming distinct rows or clusters; manubrium cross-shaped, with four perr...
| Main Authors: | , , , , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2016
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| Subjects: | |
| Online Access: | https://doi.org/10.5281/zenodo.5628737 http://treatment.plazi.org/id/03EB879BFF9CFFAEFD870235FAFBE6FB |
| Summary: | Genus Tesserogastria Beyer, 1959 Diagnosis Crawling medusae with swimming capabilities; umbrella bell-shaped, margin thickened, provided with a great number of solid, Fliform tentacles inserted at varied levels, apparently not forming distinct rows or clusters; manubrium cross-shaped, with four perradial lobes; gastric peduncle, pouches and mesenteries absent; 8 radial canals join the broad ring canal; centripetal canals absent; four pairs of elongated gonads, one to each manubrial lobe; velum well-developed; 8 free, ecto-endodermal statocysts (2 per octant). Remarks The absence of both mesenteries and adhesive tentacles, as well as the shape and position of the gonads, immediately distinguish this genus from both Glaciambulata gen. nov. and Ptychogastria Allman, 1878. Published as part of Horia R. Galea, Cornelia Roder, Christoph Walcher, Marco Warmuth, Eberhard Kohlberg & Philipp F. Fischer, 2016, Glaciambulata neumayeri gen. et sp. nov., a new Antarctic trachymedusa (Cnidaria: Hydrozoa), with a revision of the family Ptychogastriidae, pp. 1-30 in European Journal of Taxonomy 252 on page 16, DOI:10.5852/ejt.2016.252, http://zenodo.org/record/221250 |
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