WoRMS taxon details
Ptychogena A. Agassiz, 1865
117143 (urn:lsid:marinespecies.org:taxname:117143)
accepted
Genus
Ptychogena lactea Agassiz, 1865 (type by monotypy)
- Species Ptychogena antarctica Browne, 1907
- Species Ptychogena californica Torrey, 1909
- Species Ptychogena crocea Kramp & Damas, 1925
- Species Ptychogena hyperborea Kramp, 1942
- Species Ptychogena lactea Agassiz, 1865
- Species Ptychogena aurea Vanhöffen, 1912 accepted as Chromatonema rubrum Fewkes, 1882 (synonym)
- Species Ptychogena erythrogonon Bigelow, 1909 accepted as Chromatonema erythrogonon (Bigelow, 1909)
- Species Ptychogena hertwigi Vanhöffen, 1911 accepted as Chromatonema rubrum Fewkes, 1882 (synonym)
- Species Ptychogena longigona Maas, 1893 accepted as Laodicea undulata (Forbes & Goodsir, 1853) (indeterminate species, possible synonym)
- Species Ptychogena pinnulata Haeckel, 1879 accepted as Ptychogena lactea Agassiz, 1865 (synonym)
marine, brackish, fresh, terrestrial
recent only
Agassiz, A. (1865). North American Acalephae. <em>Illustrated Catalogue of the Museum of Comparative Zoölogy at Harvard College.</em> 2: 1-234., available online at http://www.biodiversitylibrary.org/bibliography/1837
page(s): 137 [details]
page(s): 137 [details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Ptychogena A. Agassiz, 1865. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=117143 on 2025-07-16
Date
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Nomenclature
original description
Agassiz, A. (1865). North American Acalephae. <em>Illustrated Catalogue of the Museum of Comparative Zoölogy at Harvard College.</em> 2: 1-234., available online at http://www.biodiversitylibrary.org/bibliography/1837
page(s): 137 [details]
basis of record van der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 112-120 (look up in IMIS) [details]
page(s): 137 [details]
basis of record van der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 112-120 (look up in IMIS) [details]
Taxonomy
redescription
Schuchert P., Hosia A., Leclère L. (2017). Identification of the polyp stage of three leptomedusa species using DNA barcoding. <em>Revue suisse de Zoologie.</em> 124(1): 167-182., available online at https://bioone.org/journals/revue-suisse-de-zoologie/volume-124/issue-1/zenodo.322675/Identification-of-the-polyp-stage-of-three-leptomedusa-species-using/10.5281/zenodo.322675.full
note: polyp stage [details]
note: polyp stage [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Laodiceidae medusae with large, prismatic manubrium, 4 radial canals connected to stomach via a large, funnel-shaped, mesentery-like basal extension of manubrium. Along radial canals lateral, transverse, fold-like diverticula on which the gonads are located; bell margin with club-shaped cordyli, no cirri, no ocelli.
Hydroids where known like Stepomoma plicatile (M. Sars, 1863).
Hydroids where known like Stegopoma.
[details]
| Language | Name | |
|---|---|---|
| Japanese | マツカサクラゲ属 | [details] |
To Biological Information System for Marine Life (BISMaL)
To European Nucleotide Archive, ENA (Ptychogena)
To Genbank
To The Arctic Traits Database (0 traits)
To ITIS
To European Nucleotide Archive, ENA (Ptychogena)
To Genbank
To The Arctic Traits Database (0 traits)
To ITIS
From editor or global species database
Image from typetaxon
