WoRMS name details
Hemicalanus Dana, 1852-1853
347227 (urn:lsid:marinespecies.org:taxname:347227)
unaccepted (species in this genus mainly assigned to Haloptilus, but also Centropages & Augaptilus)
Genus
Hemicalanus longicornis Claus, 1863 accepted as Haloptilus longicornis (Claus, 1863) (type by original designation)
- Species Hemicalanus aculeatus Brady, 1883 accepted as Haloptilus aculeatus (Brady, 1883) (synonym)
- Species Hemicalanus acutifrons Giesbrecht, 1892 accepted as Haloptilus acutifrons (Giesbrecht, 1892) (synonym)
- Species Hemicalanus calaninus Dana, 1852-1853 accepted as Centropages calaninus (Dana, 1849-1852) (synonym)
- Species Hemicalanus chierchiae Giesbrecht, 1889 accepted as Haloptilus chierchiae (Giesbrecht, 1889) (synonym)
- Species Hemicalanus fertilis Giesbrecht, 1892 accepted as Haloptilus fertilis (Giesbrecht, 1892) (synonym)
- Species Hemicalanus filigerus Claus, 1863 accepted as Euaugaptilus filigerus (Claus, 1863) (synonym)
- Species Hemicalanus gracilis Dana, 1852-1853 accepted as Centropages gracilis (Dana, 1849-1852) (synonym)
- Species Hemicalanus longicaudatus Claus, 1863 accepted as Augaptilus longicaudatus (Claus, 1863) (synonym)
- Species Hemicalanus longicornis Claus, 1863 accepted as Haloptilus longicornis (Claus, 1863) (synonym)
- Species Hemicalanus longicornis Dana, 1852-1853 accepted as Diaptomus longicornis Nicolet, 1849 (synonym)
- Species Hemicalanus mucronatus Claus, 1863 accepted as Haloptilus mucronatus (Claus, 1863) (synonym)
- Species Hemicalanus orientalis Brady, 1883 accepted as Haloptilus orientalis (Brady, 1883) (synonym)
- Species Hemicalanus ornatus Giesbrecht, 1892 accepted as Haloptilus ornatus (Giesbrecht, 1892) (synonym)
- Species Hemicalanus oxycephalus Giesbrecht, 1889 accepted as Haloptilus oxycephalus (Giesbrecht, 1889) (synonym)
- Species Hemicalanus plumosus Claus, 1863 accepted as Haloptilus plumosus (Claus, 1863) (synonym)
- Species Hemicalanus spiniceps Giesbrecht, 1892 accepted as Haloptilus spiniceps (Giesbrecht, 1892) (synonym)
- Species Hemicalanus spinifrons Sars G.O., 1900 accepted as Haloptilus acutifrons (Giesbrecht, 1892) (synonym)
- Species Hemicalanus tenuicornis Dana, 1853-1855 accepted as Centropages calaninus (Dana, 1849-1852) (synonym)
marine, brackish, fresh, terrestrial
Dana, J.D. (1853-1855). Crustacea. Part II. <em>In: United States Exploring Expedition. During the years 1838, 1839, 1840, 1841, 1842. Under the command of Charles Wilkes. U. S. N., C. Sherman Printer, Philadelphia.</em> 14: 691-1618. [1855, folio atlas pls. 1-96.]., available online at https://www.biodiversitylibrary.org/page/40412910 [details] 
Taxonomy Esterly, 1905 considered this a synonym of Centropages and place H. calaninus, gracilis and tenuicornis as Centropages
Taxonomy Esterly, 1905 considered this a synonym of Centropages and place H. calaninus, gracilis and tenuicornis as Centropages [details]
Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Hemicalanus Dana, 1852-1853. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=347227 on 2025-04-05
Date
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Nomenclature
original description
Dana, J.D. (1853-1855). Crustacea. Part II. <em>In: United States Exploring Expedition. During the years 1838, 1839, 1840, 1841, 1842. Under the command of Charles Wilkes. U. S. N., C. Sherman Printer, Philadelphia.</em> 14: 691-1618. [1855, folio atlas pls. 1-96.]., available online at https://www.biodiversitylibrary.org/page/40412910 [details]
Other
additional source
Sars, G.O. (1900). Crustacea. <em>In: Nansen, F. (ed.). The Norwegian North Polar Expedition 1893-1896., Scientific Results.</em> 1(5): 1-141, Plates 1-36., available online at https://www.biodiversitylibrary.org/page/17104697#page/9/mode/1up [details]
From editor or global species database
Taxonomy Esterly, 1905 considered this a synonym of Centropages and place H. calaninus, gracilis and tenuicornis as Centropages [details]
