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WoRMS taxon details
original description
Mayer, A. G. 1910. Medusae of the world. Hydromedusae, Vols. I & II. Scyphomedusae, Vol III. Carnegie Institution, Washington. pp. 735, plates 1-76., available online at https://www.biodiversitylibrary.org/page/1327020
page(s): 277, pl. 36 figs 3-5, pl. 37 fig. 6 [details] 
original description
(of Blackfordia manhattensis Mayer, 1910) Mayer, A. G. 1910. Medusae of the world. Hydromedusae, Vols. I & II. Scyphomedusae, Vol III. Carnegie Institution, Washington. pp. 735, plates 1-76., available online at https://www.biodiversitylibrary.org/page/1327020
page(s): 277, pl. 36 fig. 2-2''' [details]
context source (Introduced species)
Katsanevakis, S.; Bogucarskis, K.; Gatto, F.; Vandekerkhove, J.; Deriu, I.; Cardoso A.S. (2012). Building the European Alien Species Information Network (EASIN): a novel approach for the exploration of distributed alien species data. <em>BioInvasions Records.</em> 1: 235-245., available online at http://easin.jrc.ec.europa.eu [details] Available for editors  [request]
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [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]
additional source
Streftaris, N., A. Zenetos & E. Papathanassiou. (2005). Globalisation in marine ecosystems: the story of non-indigenous marine species across European seas. <em>Oceanogry and Marine Biology: an Annual Review.</em> 43: 419-453. (look up in IMIS) [details] Available for editors [request]
additional source
Faasse M., Melchers M. (2014). The exotic jellyfish Blackfordia virginica introduced into the Netherlands (Cnidaria: Hydrozoa). <em>Nederlandse Faunistische Mededelingen.</em> 43: 103-109., available online at http://www.repository.naturalis.nl/record/625706
page(s): 103, figs 1, 3-5; note: polyp stage, record medusa Holland [details] Available for editors [request]
additional source
Segura-Puertas, L., L. Celis, and L. Chiaverano. 2009. Medusozoans (Cnidaria: Cubozoa, Scyphozoa, and Hydrozoa) of the Gulf of Mexico, Pp. 369–379 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Pre [details]
additional source
Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors [request]
redescription
Mills, C.; Rees, J. T. (2000). New observations and corrections concerning the trio of invasive hydromedusae <i>Maeotias marginata (=M. inexpectata), Blackfordia virginica</i>, and <i>Moreisia</i> sp. in the San Francisco Estuary. Scientia Marina. 64: 151-155., available online at https://doi.org/10.3989/scimar.2000.64s1151
page(s): 153, fig. 1a-d; note: depict and describe polyp stage [details] Available for editors [request]
redescription
Moore, S. J. (1987) Redescription of the leptomedusan Blackfordia virginica, Journal of the Marine Biological Association of the United Kingdom 67: 287-291
page(s): 287 [details]
From regional or thematic species database
Introduced species abundance in Portuguese part of the North Atlantic Ocean (Marine Region) : Dominant [details]
Introduced species abundance in Spanish part of the North Atlantic Ocean (Marine Region) : Dominant [details]
Introduced species impact in Portuguese part of the North Atlantic Ocean (Marine Region) : Consumes native species (predator or herbivore) [details]
Introduced species impact in Spanish part of the North Atlantic Ocean (Marine Region) : Outcompetes native species for resources and/or space [details]
Introduced species remark Brazilian part of the South Atlantic Ocean (Marine Region) In a search for specimens we found 1759 individuals from estuaries of the Santa Cruz Channel (Itamaracá) and Capibaribe and Jiquiaá rivers that had been collected between 1987 and 2000. In addition, an analysis of grey literature (Ph.D. theses) suggests that the species has been present in the Santa Cruz Channel for at least five decades. [details]
Introduced species remark United States part of the North Pacific Ocean (Marine Region) Overall, abundance and distribution of medusae of these three hydrozoans in Suisun Marsh depended on seasonal stability of environmental conditions that favored blooms. While harmful effects have yet to be demonstrated, they could become more of a problem as both sea level and water temperatures rise, especially given the combined range of environmental conditions at which the three species occur. [details]
Introduced species vector dispersal in Portuguese part of the North Atlantic Ocean (Marine Region) : Possibly ballast water introductions [details]
Introduced species vector dispersal in Bulgarian part of the Black Sea : Shipping [details]
Introduced species vector dispersal Argentinean part of the Rio de La Plata (Marine Region) : Ships: general
It is likely to have been widely transported in ballast water and fouling. [details]
Introduced species vector dispersal Brazilian part of the South Atlantic Ocean (Marine Region) : Ships: general
It is likely to have been widely transported in ballast water and fouling. [details]
Introduced species vector dispersal in French part of the Bay of Biscay (Marine Region) : Ships: general
It is likely to have been widely transported in ballast water and fouling. [details]
Introduced species vector dispersal Indian part of the Arabian Sea (Marine Region) : Ships: general
It is likely to have been widely transported in ballast water and fouling. [details]
Introduced species vector dispersal Mexican part of the North Pacific Ocean (Marine Region) : Ships: general
It is likely to have been widely transported in ballast water and fouling. [details]Unreviewed
Biology colonial [details]
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Present 