WoRMS taxon details
Crangonyx floridanus Bousfield, 1963
431482 (urn:lsid:marinespecies.org:taxname:431482)
accepted
Species
Bousfield, E. L. (1963). New freshwater amphipod crustaceans from Florida. <em>Natural History Papers, National Museum of Canada.</em> 18, 1-9. [details]
Type locality contained in Florida
type locality contained in Florida [details]
Distribution Widely distributed in the eastern and east-central United States, occurring as far west as central Kansas and presumably...
Distribution Widely distributed in the eastern and east-central United States, occurring as far west as central Kansas and presumably introduced into western United States and even Japan. [details]
Horton, T.; Lowry, J.; De Broyer, C.; Bellan-Santini, D.; Copilas-Ciocianu, D.; Corbari, L.; Costello, M.J.; Daneliya, M.; Dauvin, J.-C.; Fišer, C.; Gasca, R.; Grabowski, M.; Guerra-García, J.M.; Hendrycks, E.; Hughes, L.; Jaume, D.; Jazdzewski, K.; Kim, Y.-H.; King, R.; Krapp-Schickel, T.; LeCroy, S.; Lörz, A.-N.; Mamos, T.; Senna, A.R.; Serejo, C.; Souza-Filho, J.F.; Tandberg, A.H.; Thomas, J.D.; Thurston, M.; Vader, W.; Väinölä, R.; Valls Domedel, G.; Vonk, R.; White, K.; Zeidler, W. (2025). World Amphipoda Database. Crangonyx floridanus Bousfield, 1963. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=431482 on 2025-10-12
Date
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Nomenclature
original description
Bousfield, E. L. (1963). New freshwater amphipod crustaceans from Florida. <em>Natural History Papers, National Museum of Canada.</em> 18, 1-9. [details]
Taxonomy
taxonomy source
Morino H., Kusano H. & Holsinger J.R. (2004). Description and distribution of Crangonyx floridanus (Crustacea: Amphipoda: Crangonyctidae) in Japan, an introduced freshwater amphipod from North America. Contributions from the Biological Laboratorium Kyoto University, 29, pp. 371-381.
page(s): 372, figs 1-4 [details] Available for editors
[request]
redescription Cannizzaro, A. G.; Balding, D.; Lazo-Wasem, E. A.; Sawicki, T. R. (2019). Morphological and molecular analyses reveal a new species of stygobitic amphipod in the genus Crangonyx (Crustacea: Crangonyctidae) from Jackson County, Florida, with a redescription of Crangonyx floridanus and notes on its taxonomy and biogeography. <em>Journal of Natural History.</em> 53(7-8): 425-473., available online at https://doi.org/10.1080/00222933.2019.1584341
page(s): 430; note: based on type material [details] Available for editors [request]
redescription Zhang, J.; Holsinger, J. R. (2003). Systematics of the freshwater amphipod genus Crangonyx (Crangonyctidae) in North America. <em>Virginia Museum of Natural History, Memoir.</em> 6, 274 pp.
page(s): 183, figs 130-132 [details] Available for editors [request]
status source Zhang, J.; Holsinger, J. R. (2003). Systematics of the freshwater amphipod genus Crangonyx (Crangonyctidae) in North America. <em>Virginia Museum of Natural History, Memoir.</em> 6, 274 pp. [details] Available for editors [request]
page(s): 372, figs 1-4 [details] Available for editors
[request]redescription Cannizzaro, A. G.; Balding, D.; Lazo-Wasem, E. A.; Sawicki, T. R. (2019). Morphological and molecular analyses reveal a new species of stygobitic amphipod in the genus Crangonyx (Crustacea: Crangonyctidae) from Jackson County, Florida, with a redescription of Crangonyx floridanus and notes on its taxonomy and biogeography. <em>Journal of Natural History.</em> 53(7-8): 425-473., available online at https://doi.org/10.1080/00222933.2019.1584341
page(s): 430; note: based on type material [details] Available for editors
[request]redescription Zhang, J.; Holsinger, J. R. (2003). Systematics of the freshwater amphipod genus Crangonyx (Crangonyctidae) in North America. <em>Virginia Museum of Natural History, Memoir.</em> 6, 274 pp.
page(s): 183, figs 130-132 [details] Available for editors
[request]status source Zhang, J.; Holsinger, J. R. (2003). Systematics of the freshwater amphipod genus Crangonyx (Crangonyctidae) in North America. <em>Virginia Museum of Natural History, Memoir.</em> 6, 274 pp. [details] Available for editors
[request]Other
additional source
Kornobis, E., Pálsson, S. & Svavarsson, J. (2012). Classification of Crangonyx islandicus (Amphipoda, Crangonyctidae) based on morphological characters and comparison with molecular phylogenies. <em>Zootaxa.</em> 3233: 52-66.
note: in morphological and 18S DNA phylogeny [details] Available for editors [request]
additional source Kornobis, E.; Pálsson, S.; Sidorov, D. A.; Holsinger, J. R.; Kristjánsson, B. K. (2011). Molecular taxonomy and phylogenetic affinities of two groundwater amphipods, Crangonyx islandicus and Crymostygius thingvallensis, endemic to Iceland. <em>Molecular Phylogenetics and Evolution.</em> 58(3): 527-539., available online at https://doi.org/10.1016/j.ympev.2010.12.010
note: mtDNA COI, 16S, nDNA 18S, 28S [details] Available for editors [request]
additional source Zhao, S.; Hou, Z. (2017). A new subterranean species of <em>Pseudocrangonyx</em> from China with an identification key to all species of the genus (Crustacea, Amphipoda, Pseudocrangonyctidae). <em>ZooKeys.</em>(647), 1-22., available online at https://doi.org/10.3897/zookeys.647.11192
page(s): 4; note: 28S, COI [details] Available for editors [request]
additional source Lee, C.-W.; Tomikawa, K.; Nakano, T.; Min, G.-S. (2018). A new species of the genus <em>Pseudocrangonyx</em> (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea. <em>ZooKeys.</em>735: 27-44., available online at https://doi.org/10.3897/zookeys.735.21697
note: molecular phylogenetics [details] Available for editors [request]
additional source Copilaş-Ciocianu, D., Sidorov, D. & Gontcharov, A. (2019). Adrift across tectonic plates: Molecular phylogenetics supports the ancient Laurasian origin of old limnic crangonyctid amphipods. <em>Organisms, Diversity & Evolution.</em> 19: 191-207., available online at https://link.springer.com/article/10.1007%2Fs13127-019-00401-7
page(s): Fig. 2, 3; note: molecular phylogeny [details]
additional source Palatov, D. M.; Marin, I. N. (2020). A new genus of the family Crangonyctidae (Crustacea, Amphipoda) from the Palaearctic, with descriptions of two new species from the foothills of the Altai mountains. <em>Зоологический журнал.</em> 99(10): 1160-1186., available online at https://doi.org/10.31857/s004451342010013x
page(s): Fig. 17; note: molecular phylogeny [details] Available for editors [request]
additional source Palatov, D. M.; Marin, I. N. (2021). When males and females belong to different genera: an interesting case of Synurella/Pontonyx (Crustacea: Amphipoda: Crangonyctidae) co-occurrence. <em>Arthropoda Selecta.</em> 30(4): 443-472., available online at https://doi.org/10.15298/arthsel.30.4.03
page(s): Fig. 1; note: molecular phylogeny [details] Available for editors [request]
additional source Copilaş-Ciocianu, D.; Prokin, A.; Esin, E.; Shkil, F.; Zlenko, D.; Markevich, G.; Sidorov, D. (2024). The subarctic ancient Lake El'gygytgyn harbours the world's northernmost 'limnostygon communityʼ and reshuffles crangonyctoid systematics (Crustacea, Amphipoda). <em>Invertebrate Systematics.</em> 38(12)., available online at https://doi.org/10.1071/is24001
page(s): Fig.2; note: molecular phylogeny [details] Available for editors [request]
note: in morphological and 18S DNA phylogeny [details] Available for editors
[request]additional source Kornobis, E.; Pálsson, S.; Sidorov, D. A.; Holsinger, J. R.; Kristjánsson, B. K. (2011). Molecular taxonomy and phylogenetic affinities of two groundwater amphipods, Crangonyx islandicus and Crymostygius thingvallensis, endemic to Iceland. <em>Molecular Phylogenetics and Evolution.</em> 58(3): 527-539., available online at https://doi.org/10.1016/j.ympev.2010.12.010
note: mtDNA COI, 16S, nDNA 18S, 28S [details] Available for editors
[request]additional source Zhao, S.; Hou, Z. (2017). A new subterranean species of <em>Pseudocrangonyx</em> from China with an identification key to all species of the genus (Crustacea, Amphipoda, Pseudocrangonyctidae). <em>ZooKeys.</em>(647), 1-22., available online at https://doi.org/10.3897/zookeys.647.11192
page(s): 4; note: 28S, COI [details] Available for editors
[request]additional source Lee, C.-W.; Tomikawa, K.; Nakano, T.; Min, G.-S. (2018). A new species of the genus <em>Pseudocrangonyx</em> (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea. <em>ZooKeys.</em>735: 27-44., available online at https://doi.org/10.3897/zookeys.735.21697
note: molecular phylogenetics [details] Available for editors
[request]additional source Copilaş-Ciocianu, D., Sidorov, D. & Gontcharov, A. (2019). Adrift across tectonic plates: Molecular phylogenetics supports the ancient Laurasian origin of old limnic crangonyctid amphipods. <em>Organisms, Diversity & Evolution.</em> 19: 191-207., available online at https://link.springer.com/article/10.1007%2Fs13127-019-00401-7
page(s): Fig. 2, 3; note: molecular phylogeny [details]
additional source Palatov, D. M.; Marin, I. N. (2020). A new genus of the family Crangonyctidae (Crustacea, Amphipoda) from the Palaearctic, with descriptions of two new species from the foothills of the Altai mountains. <em>Зоологический журнал.</em> 99(10): 1160-1186., available online at https://doi.org/10.31857/s004451342010013x
page(s): Fig. 17; note: molecular phylogeny [details] Available for editors
[request]additional source Palatov, D. M.; Marin, I. N. (2021). When males and females belong to different genera: an interesting case of Synurella/Pontonyx (Crustacea: Amphipoda: Crangonyctidae) co-occurrence. <em>Arthropoda Selecta.</em> 30(4): 443-472., available online at https://doi.org/10.15298/arthsel.30.4.03
page(s): Fig. 1; note: molecular phylogeny [details] Available for editors
[request]additional source Copilaş-Ciocianu, D.; Prokin, A.; Esin, E.; Shkil, F.; Zlenko, D.; Markevich, G.; Sidorov, D. (2024). The subarctic ancient Lake El'gygytgyn harbours the world's northernmost 'limnostygon communityʼ and reshuffles crangonyctoid systematics (Crustacea, Amphipoda). <em>Invertebrate Systematics.</em> 38(12)., available online at https://doi.org/10.1071/is24001
page(s): Fig.2; note: molecular phylogeny [details] Available for editors
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Biology Details on biology and ecology of alien populations in Japan see in Tojo et al. (2010) [details]Distribution Widely distributed in the eastern and east-central United States, occurring as far west as central Kansas and presumably introduced into western United States and even Japan. [details]
Habitat Epigean and hypogean: swamps, ponds, streams, and occasionally
cave pools; stenohaline. [details]
Morphology gracilis group (Zhang & Holsinger 2003; Kornobis et al. 2012) [details]
