WoRMS name details
Hydractinia exigua (Haeckel, 1880)
284861 (urn:lsid:marinespecies.org:taxname:284861)
unaccepted (genus transfer)
Species
Cytaeis exigua Haeckel, 1880 · unaccepted (basionym)
Dysmorphosa conchicola Philippi, 1842 · uncertain > taxon inquirendum
Hydractinia carnea var. mediterranea Neppi, 1917 · unaccepted
marine, brackish, fresh, terrestrial
recent only
(of Cytaeis exigua Haeckel, 1880) Haeckel, E. (1880). Das System der Acraspeden. 2te Hälfte des Systems der Medusen. Acht Nachträge zur Vervollständigung des Systems. <em>Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena.</em> 2: 361-672, plates 21-40., available online at https://www.biodiversitylibrary.org/page/32605982
page(s): 634 [details]
page(s): 634 [details]
Type locality contained in Naples Gulf
type locality contained in Naples Gulf [from synonym] [view taxon] [details]
Status This species has often been confounded with H. carnea, especially in experimetnal studies.
Status This species has often been confounded with H. carnea, especially in experimetnal studies. [details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2026). World Hydrozoa Database. Hydractinia exigua (Haeckel, 1880). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=284861 on 2026-08-13
Date
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Nomenclature
original description
(of Cytaeis exigua Haeckel, 1880) Haeckel, E. (1880). Das System der Acraspeden. 2te Hälfte des Systems der Medusen. Acht Nachträge zur Vervollständigung des Systems. <em>Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena.</em> 2: 361-672, plates 21-40., available online at https://www.biodiversitylibrary.org/page/32605982
page(s): 634 [details]
basis of record Vervoort, W.; Schuchert, P. & van der Land, J. (2000-2007). as a contribution to UNESCO-IOC Register of Marine Organisms. (look up in IMIS) [details]
page(s): 634 [details]
basis of record Vervoort, W.; Schuchert, P. & van der Land, J. (2000-2007). as a contribution to UNESCO-IOC Register of Marine Organisms. (look up in IMIS) [details]
Taxonomy
redescription
Schuchert, P. (2008). The European athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filifera part 3. <em>Revue suisse de Zoologie.</em> 115: 221-302., available online at https://doi.org/10.5962/bhl.part.80426
page(s): 237, figs 5-6 [details]
status source Miglietta, M. P., Schuchert, P., & Cunningham, C. W. 2009. Reconciling genealogical and morphological species in a worldwide study of the family Hydractiniidae (Cnidaria, Hydrozoa). Zoologica Scripta 38: 403-430., available online at https://doi.org/10.1111/j.1463-6409.2008.00376.x
page(s): 420 [details]
page(s): 237, figs 5-6 [details]
status source Miglietta, M. P., Schuchert, P., & Cunningham, C. W. 2009. Reconciling genealogical and morphological species in a worldwide study of the family Hydractiniidae (Cnidaria, Hydrozoa). Zoologica Scripta 38: 403-430., available online at https://doi.org/10.1111/j.1463-6409.2008.00376.x
page(s): 420 [details]
Other
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Status This species has often been confounded with H. carnea, especially in experimetnal studies. [details]
