WoRMS taxon details
Coullana canadensis (Willey, 1923)
357942 (urn:lsid:marinespecies.org:taxname:357942)
accepted
Species
Canuella canadensis Willey, 1923 · unaccepted
Canuella elongata Wilson C.B., 1932 · unaccepted (synonymy)
Scottolana canadensis (Willey, 1923) · unaccepted
(of Canuella canadensis Willey, 1923) Willey, A. (1923). Notes on the distribution of free-living Copepoda in Canadian waters. Contributions to Canadian Biology, New Series 1(16):303-334., available online at https://doi.org/10.1139/f22-016 [details] 
Taxonomic remark "Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by...
Taxonomic remark "Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by Coull (1972) and then designated the type species of a new genus Coullana by Por (1984). Huys (2009) returned the taxon to the original genus on taxonomic procedural grounds. Coull (1972) synonymized Canuella elongata, described by C.B. Wilson (1932) from the upper bay, with this taxon. As an example of the confusion caused by these changes, Steinberg and Condon (2009) listed both Canuella canadensis and C. elongata from the York River.
This conspicuous species is common in estuaries along the Atlantic, Gulf, and northeast Pacific coasts. It may maintain viable populations in freshwater to oligohaline reaches of affluents of the Chesapeake Bay (Burrell & Zwerner, 1972); for instance, Burrell (1972) stated that it occurs year-round in the upper York and Pamunkey rivers at salinities of 0–10.5‰. Lonsdale (1981) found through field surveys and laboratory experiments that salinity “has at most a limited impact” on survival and growth of C. canadensis. As Canuella elongata, it has been reported from the upper reaches of the Pagan River by Davis (1994) and from tidal-fresh sites in the Rappahannock, York, and James rivers by Birdsong (1992)." [details]
This conspicuous species is common in estuaries along the Atlantic, Gulf, and northeast Pacific coasts. It may maintain viable populations in freshwater to oligohaline reaches of affluents of the Chesapeake Bay (Burrell & Zwerner, 1972); for instance, Burrell (1972) stated that it occurs year-round in the upper York and Pamunkey rivers at salinities of 0–10.5‰. Lonsdale (1981) found through field surveys and laboratory experiments that salinity “has at most a limited impact” on survival and growth of C. canadensis. As Canuella elongata, it has been reported from the upper reaches of the Pagan River by Davis (1994) and from tidal-fresh sites in the Rappahannock, York, and James rivers by Birdsong (1992)." [details]
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Coullana canadensis (Willey, 1923). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=357942 on 2026-03-23
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Nomenclature
original description
(of Canuella elongata Wilson C.B., 1932) Wilson, C.B. (1932). The copepods of the Woods Hole region, Massachusetts. <em>Bulletin of the United States National Museum.</em> 158:1-635, figs. 1-316, pls. 1-41., available online at https://doi.org/10.5479/si.03629236.158.i
page(s): 33 [details] Available for editors
[request]
original description (of Canuella canadensis Willey, 1923) Willey, A. (1923). Notes on the distribution of free-living Copepoda in Canadian waters. Contributions to Canadian Biology, New Series 1(16):303-334., available online at https://doi.org/10.1139/f22-016 [details]
new combination reference Huys, R. (2009). Unresolved cases of type fixation, synonymy and homonymy in harpacticoid copepod nomenclature (Crustacea: Copepoda). <em>Zootaxa.</em> 2183:1-99., available online at http://www.mapress.com/zootaxa/2009/2/zt02183p099.pdf
note: Huys (2009) returned the taxon to the original genus Canuella canadensis on taxonomic procedural grounds. [details] Available for editors [request]
new combination reference Por, F.D. (1984). Canuellidae Lang (Harpacticoida, Polyarthra) and the ancestry of the Copepoda. <em>In: Vervoort, W. & J.C. Vaupel Klein von (eds.). Studies on Copepoda II. Proceedings of the First International Conference on Copepoda, Amsterdam, The Netherlands, 24-28 August 1981. Crustaceana, Supplement.</em> 7:1-24, figs. 1-20. (10-viii-1984)., available online at https://doi.org/10.1163/9789004629363_003 [details] Available for editors [request]
page(s): 33 [details] Available for editors
[request]original description (of Canuella canadensis Willey, 1923) Willey, A. (1923). Notes on the distribution of free-living Copepoda in Canadian waters. Contributions to Canadian Biology, New Series 1(16):303-334., available online at https://doi.org/10.1139/f22-016 [details]
new combination reference Huys, R. (2009). Unresolved cases of type fixation, synonymy and homonymy in harpacticoid copepod nomenclature (Crustacea: Copepoda). <em>Zootaxa.</em> 2183:1-99., available online at http://www.mapress.com/zootaxa/2009/2/zt02183p099.pdf
note: Huys (2009) returned the taxon to the original genus Canuella canadensis on taxonomic procedural grounds. [details] Available for editors
[request]new combination reference Por, F.D. (1984). Canuellidae Lang (Harpacticoida, Polyarthra) and the ancestry of the Copepoda. <em>In: Vervoort, W. & J.C. Vaupel Klein von (eds.). Studies on Copepoda II. Proceedings of the First International Conference on Copepoda, Amsterdam, The Netherlands, 24-28 August 1981. Crustaceana, Supplement.</em> 7:1-24, figs. 1-20. (10-viii-1984)., available online at https://doi.org/10.1163/9789004629363_003 [details] Available for editors
[request]Taxonomy
redescription
Coull, B.C. (1972). Scottolana canadensis (Willey, 1923) (Copepoda, Harpacticoida) redescribed from the United States east coast. <em>Crustaceana (Leiden).</em> 22(3):209-214, figs. 1-16. (1-vi-1972)., available online at https://doi.org/10.1163/156854072x00507 [details] Available for editors [request]
[request]Other
additional source
Steinberg, D.K. & R.H. Condon. (2009). Zooplankton of the York River. Journal of Coastal Research (Spec. Iss. 57):66-79.
note: "Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by Coull (1972) and then designated the type species of a new genus Coullana by P...
[details] Available for editors [request]
additional source Davis, L.N. (1994). Seasonal composition of mesozooplankton in the Pagan River, a nutrient enriched Virginia estuary. <em>M.Sc. Thesis, Old Dominion University, Norfolk, Virginia.</em> 92 pp. plus 4 unpaginated appendices. [details]
additional source Burrell, V.G., Jr. (1972). Distribution and abundance of calanoid copepods in the York River estuary, Virginia, 1968-1969. <em>Ph.D. Dissertation, College of William and Mary, Williamsburg, Virginia, USA.</em> 234 pp. [details] Available for editors [request]
additional source Burrell, V.G., Jr. & D.E. Zwerner. (1972). Subclass Copepoda : (Calanoida and Cyclopoida) by V.G. Burrell, Jr. (Harpacticoida) by D. E. Zwerner In: Wass, M.L. et al. (eds.). A Check List of the Biota of Lower Chesapeake Bay. Virginia Institute of Marine Science, Special Scientific Report 65:138-142, (x.1972) [details] Available for editors [request]
additional source Frey, M.A., D.J. Lonsdale & T.W. Snell. (1998). The influence of contact chemical signals on mate recognition in a harpacticoid copepod. <em>Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences.</em> 353(1369):745-751., available online at https://doi.org/10.1098/rstb.1998.0240 [details] Available for editors [request]
additional source Gupta, S. (1992). A numerical model to simulate the effects of tidal mixing on the copepod, Coullana canadensis, in the Saco River estuary, Maine. <em>M.S. Thesis, State University of New York at Stony Brook.</em> 56 pp. [details]
additional source Lonsdale, D.J. (1981). Influence of age-specific mortality on the life history traits of two estuarine copepods. Marine Ecology Progress Series 5(3):333-340, figs. 1-3, tabs. 1-4. (15-viii-1981), available online at https://doi.org/10.3354/meps005333 [details] Available for editors [request]
additional source Lonsdale, D.J., P. Weissman & F.C. Dobbs. (1993). A reproductive-resting stage in an harpacticoid copepod, and the significance of genetically based differences among populations. Bulletin of Marine Science 53(1):180-193. [details] Available for editors [request]
additional source Lonsdale, D.J., R.P. Hassett, F.C. Dobbs & J. Yen. (1998). Physiological traits associated with a reproductive-resting stage in Coullana canadensis (Copepoda: Harpacticoida). <em>Marine Biology, Berlin.</em> 131(1):123-131. (iv.1998)., available online at https://doi.org/10.1007/s002270050303 [details] Available for editors [request]
additional source Frey, M.A. (1996). Mate recognition and the role of chemical cues in the genus Coullana (Copepoda, Harpacticoida): implications for reproductive isolation. M.Sc. Thesis, State University of New York at Stony Brook, New York, U.S.A. [details]
note: "Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by Coull (1972) and then designated the type species of a new genus Coullana by P...
"Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by Coull (1972) and then designated the type species of a new genus Coullana by Por (1984). Huys (2009) returned the taxon to the original genus on taxonomic procedural grounds. Coull (1972) synonymized Canuella elongata, described by C.B. Wilson (1932) from the upper bay, with this taxon. As an example of the confusion caused by these changes, Steinberg and Condon (2009) listed both Canuella canadensis and C. elongata from the York River.
[request]additional source Davis, L.N. (1994). Seasonal composition of mesozooplankton in the Pagan River, a nutrient enriched Virginia estuary. <em>M.Sc. Thesis, Old Dominion University, Norfolk, Virginia.</em> 92 pp. plus 4 unpaginated appendices. [details]
additional source Burrell, V.G., Jr. (1972). Distribution and abundance of calanoid copepods in the York River estuary, Virginia, 1968-1969. <em>Ph.D. Dissertation, College of William and Mary, Williamsburg, Virginia, USA.</em> 234 pp. [details] Available for editors
[request]additional source Burrell, V.G., Jr. & D.E. Zwerner. (1972). Subclass Copepoda : (Calanoida and Cyclopoida) by V.G. Burrell, Jr. (Harpacticoida) by D. E. Zwerner In: Wass, M.L. et al. (eds.). A Check List of the Biota of Lower Chesapeake Bay. Virginia Institute of Marine Science, Special Scientific Report 65:138-142, (x.1972) [details] Available for editors
[request]additional source Frey, M.A., D.J. Lonsdale & T.W. Snell. (1998). The influence of contact chemical signals on mate recognition in a harpacticoid copepod. <em>Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences.</em> 353(1369):745-751., available online at https://doi.org/10.1098/rstb.1998.0240 [details] Available for editors
[request]additional source Gupta, S. (1992). A numerical model to simulate the effects of tidal mixing on the copepod, Coullana canadensis, in the Saco River estuary, Maine. <em>M.S. Thesis, State University of New York at Stony Brook.</em> 56 pp. [details]
additional source Lonsdale, D.J. (1981). Influence of age-specific mortality on the life history traits of two estuarine copepods. Marine Ecology Progress Series 5(3):333-340, figs. 1-3, tabs. 1-4. (15-viii-1981), available online at https://doi.org/10.3354/meps005333 [details] Available for editors
[request]additional source Lonsdale, D.J., P. Weissman & F.C. Dobbs. (1993). A reproductive-resting stage in an harpacticoid copepod, and the significance of genetically based differences among populations. Bulletin of Marine Science 53(1):180-193. [details] Available for editors
[request]additional source Lonsdale, D.J., R.P. Hassett, F.C. Dobbs & J. Yen. (1998). Physiological traits associated with a reproductive-resting stage in Coullana canadensis (Copepoda: Harpacticoida). <em>Marine Biology, Berlin.</em> 131(1):123-131. (iv.1998)., available online at https://doi.org/10.1007/s002270050303 [details] Available for editors
[request]additional source Frey, M.A. (1996). Mate recognition and the role of chemical cues in the genus Coullana (Copepoda, Harpacticoida): implications for reproductive isolation. M.Sc. Thesis, State University of New York at Stony Brook, New York, U.S.A. [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Taxonomic remark "Originally described as Canuella canadensis by Willey (1923), the taxon was transferred to the genus Scottolana Por by Coull (1972) and then designated the type species of a new genus Coullana by Por (1984). Huys (2009) returned the taxon to the original genus on taxonomic procedural grounds. Coull (1972) synonymized Canuella elongata, described by C.B. Wilson (1932) from the upper bay, with this taxon. As an example of the confusion caused by these changes, Steinberg and Condon (2009) listed both Canuella canadensis and C. elongata from the York River.This conspicuous species is common in estuaries along the Atlantic, Gulf, and northeast Pacific coasts. It may maintain viable populations in freshwater to oligohaline reaches of affluents of the Chesapeake Bay (Burrell & Zwerner, 1972); for instance, Burrell (1972) stated that it occurs year-round in the upper York and Pamunkey rivers at salinities of 0–10.5‰. Lonsdale (1981) found through field surveys and laboratory experiments that salinity “has at most a limited impact” on survival and growth of C. canadensis. As Canuella elongata, it has been reported from the upper reaches of the Pagan River by Davis (1994) and from tidal-fresh sites in the Rappahannock, York, and James rivers by Birdsong (1992)." [details]
To Barcode of Life
To Biodiversity Heritage Library (1 publication) (from synonym Canuella elongata Wilson C.B., 1932)
To Biodiversity Heritage Library (3 publications) (from synonym Canuella canadensis Willey, 1923)
To Biodiversity Heritage Library (7 publications) (from synonym Scottolana canadensis (Willey, 1923))
To Global Biotic Interactions (GloBI)
To USNM Invertebrate Zoology Arthropoda Collection (1 record) (from synonym Canuella elongata Wilson C.B., 1932)
To USNM Invertebrate Zoology Arthropoda Collection (2 records)
To USNM Invertebrate Zoology Arthropoda Collection (5 records) (from synonym Scottolana canadensis (Willey, 1923))
To USNM Invertebrate Zoology Arthropoda Collection (Holotype USNM 58571) (from synonym Canuella elongata Wilson C.B., 1932)
To ITIS
To Biodiversity Heritage Library (1 publication) (from synonym Canuella elongata Wilson C.B., 1932)
To Biodiversity Heritage Library (3 publications) (from synonym Canuella canadensis Willey, 1923)
To Biodiversity Heritage Library (7 publications) (from synonym Scottolana canadensis (Willey, 1923))
To Global Biotic Interactions (GloBI)
To USNM Invertebrate Zoology Arthropoda Collection (1 record) (from synonym Canuella elongata Wilson C.B., 1932)
To USNM Invertebrate Zoology Arthropoda Collection (2 records)
To USNM Invertebrate Zoology Arthropoda Collection (5 records) (from synonym Scottolana canadensis (Willey, 1923))
To USNM Invertebrate Zoology Arthropoda Collection (Holotype USNM 58571) (from synonym Canuella elongata Wilson C.B., 1932)
To ITIS
