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 2025-07-08
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] |
