WoRMS taxon details
Astacus Fabricius, 1775
382789 (urn:lsid:marinespecies.org:taxname:382789)
accepted
Genus
Cancer astacus Linnaeus, 1758 accepted as Astacus astacus astacus (Linnaeus, 1758) (type by subsequent designation)
Astacus (Potamobius) Samoeulle, 1819 † · unaccepted > superseded rank
Cancer (Astacus) Fabricius, 1775 · unaccepted (status change)
Carabis Marchand, Lamy & de Boisvillette, 1874 · unaccepted > junior subjective synonym
Potamobius Samouelle, 1819 · unaccepted > junior subjective synonym
- Species Astacus albescens Pennant, 1812 accepted as Palaemon longirostris H. Milne Edwards, 1837 (unaccepted > junior subjective synonym)
- Species Astacus bamffius Pennant, 1777 accepted as Munida rugosa (Fabricius, 1775) (unaccepted > junior subjective synonym)
- Species Astacus carinatus Meuschen, 1778 (unaccepted > unavailable name, published in work rejected for nomenclatural purposes, Opinion 261)
- Species Astacus coerulescens Fabricius, 1775 accepted as Hippolyte coerulescens (Fabricius, 1775) (unaccepted > superseded combination)
- Species Astacus crassicornis Fabricius, 1775 accepted as Scina crassicornis (Fabricius, 1775) (unaccepted > superseded combination)
- Species Astacus elephas Fabricius, 1787 accepted as Palinurus elephas (Fabricius, 1787) (unaccepted > superseded combination)
- Species Astacus europeus Couch, 1837 accepted as Homarus gammarus (Linnaeus, 1758) (unaccepted > junior subjective synonym)
- Species Astacus fulvus Fabricius, 1793 accepted as Homarus capensis (Herbst, 1792) accepted as Homarinus capensis (Herbst, 1792) (unaccepted > junior subjective synonym)
- Species Astacus groenlandicus Fabricius, 1775 accepted as Lebbeus groenlandicus (Fabricius, 1775) (unaccepted > superseded combination)
- Species Astacus harengum Fabricius, 1781 accepted as Praunus flexuosus (Müller, 1776) (unaccepted > junior subjective synonym)
- Species Astacus histrio Fabricius, 1775 accepted as Spirontocaris liljeborgii (Danielssen, 1859) (unaccepted > junior subjective synonym)
- Species Astacus homari Fabricius, 1779 accepted as Gammarellus homari (J.C. Fabricius, 1779) (unaccepted > superseded combination)
- Species Astacus locusta Fabricius, 1781 accepted as Leander tenuicornis (Say, 1818) (unaccepted > junior subjective synonym)
- Species Astacus maculatus Leach, 1814 accepted as Pandalus montagui Leach, 1814 (unaccepted > nomen nudum)
- Species Astacus malabaricus Fabricius, 1775 accepted as Alpheus malabaricus (Fabricius, 1775) (unaccepted > superseded combination)
- Species Astacus marinus Say, 1817 accepted as Homarus americanus H. Milne Edwards, 1837 (unaccepted > junior subjective synonym)
- Species Astacus marinus Fabricius, 1775 accepted as Homarus gammarus (Linnaeus, 1758) (unaccepted > junior subjective synonym)
- Species Astacus muricatus Olivier, 1791 accepted as Stenopus hispidus (Olivier, 1811)
- Species Astacus narual Fabricius, 1787 accepted as Plesionika narval (Fabricius, 1787) (unaccepted > superseded combination, original spelling; subsequent emendation narval in common use)
- Species Astacus nasoscopus Meuschen, 1778 accepted as Atya innocous (Herbst, 1792) (unaccepted > unavailable name, published in work rejected for nomenclatural purposes, Opinion 261)
- Species Astacus penicillatus Olivier, 1791 accepted as Panulirus penicillatus (Olivier, 1791) (unaccepted > superseded combination)
- Species Astacus pusillus Petagna, 1792 accepted as Upogebia pusilla (Petagna, 1792) (unaccepted > superseded combination)
- Species Astacus rugosus Rafinesque, 1814 accepted as Nephrops norvegicus (Linnaeus, 1758) (unaccepted > junior subjective synonym)
- Species Astacus scaber Fabricius, 1798 accepted as Eutrichocheles modestus (Herbst, 1796) (unaccepted > junior subjective synonym)
- Species Astacus serratus Pennant, 1777 accepted as Palaemon serratus (Pennant, 1777) (unaccepted > superseded combination)
- Species Astacus squilla (Linnaeus, 1758) accepted as Palaemon adspersus Rathke, 1836
- Species Astacus strigosus (Linnaeus, 1761) accepted as Galathea strigosa (Linnaeus, 1761) (unaccepted > superseded combination)
- Species Astacus tyrrhenus Petagna, 1792 accepted as Gilvossius tyrrhenus (Petagna, 1792) (unaccepted > superseded combination)
- Species Astacus zaleucus Thomson, 1873 accepted as Thaumastocheles zaleucus (Thomson, 1873) (unaccepted > superseded combination)
- Species Astacus cylindrus Fabricius, 1793 (uncertain > nomen dubium, larval stage with no known adult link)
- Species Astacus ferratus Fabricius, 1793 (uncertain > nomen dubium)
- Species Astacus fulgens Fabricius, 1775 (uncertain > taxon inquirendum)
- Species Astacus gibbosus Pennant, 1812 (uncertain > nomen dubium)
- Species Astacus planatus Fabricius, 1798 (uncertain > nomen dubium, larval stage with no known adult link)
- Species Astacus tettigonus Fabricius, 1775 (uncertain > taxon inquirendum)
marine, brackish, fresh, terrestrial
recent + fossil
masculine
Fabricius, J.C. (1775). Systema Entomologiae, sistens Insectorum Classes, Ordines, Genera, Species, adjectis Sysnonymis, Locis, Descriptionibus, Observationibus. [A System of Entomology, containing the Classes, Orders, Genera, and Species of Insects, with added Sysnonyms, Localities, Descriptions, and Observations.]. <em>Kortii, Flensburgi et Lipsiae.</em> 832 pp., available online at https://www.biodiversitylibrary.org/page/25551417 [details] 
WoRMS (2025). Astacus Fabricius, 1775. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=382789 on 2025-07-02
Date
action
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Nomenclature
original description
Fabricius, J.C. (1775). Systema Entomologiae, sistens Insectorum Classes, Ordines, Genera, Species, adjectis Sysnonymis, Locis, Descriptionibus, Observationibus. [A System of Entomology, containing the Classes, Orders, Genera, and Species of Insects, with added Sysnonyms, Localities, Descriptions, and Observations.]. <em>Kortii, Flensburgi et Lipsiae.</em> 832 pp., available online at https://www.biodiversitylibrary.org/page/25551417 [details]
original description (of Potamobius Samouelle, 1819) Samouelle, G. (1819). The entomologists' useful compendium; or an introduction to the knowledge of British Insects, comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and modern methods of arranging the Classes Crustacea, Myriapoda, spiders, mites and insects, from their affinities and structure, according to the views of Dr. Leach. Also an explanation of the terms used in entomology; a calendar of the times of appearance and usual situations of near 3,000 species of British Insects; with instructions for collecting and fitting up objects for the microscope. <em>Thomas Boys, London.</em> 496 pp., 12 pls. [details]
original description (of Carabis Marchand, Lamy & de Boisvillette, 1874) Marchand, A., Lamy, de Boisvillette. (1874). Statistique Scientifique d'Eure-et-Loire. Zoologie, Ichthyologie, Ornithologie. Libraire Petrot-Garnier, Chartres, France. [details]
original description (of Potamobius Samouelle, 1819) Samouelle, G. (1819). The entomologists' useful compendium; or an introduction to the knowledge of British Insects, comprising the best means of obtaining and preserving them, and a description of the apparatus generally used; together with the genera of Linné, and modern methods of arranging the Classes Crustacea, Myriapoda, spiders, mites and insects, from their affinities and structure, according to the views of Dr. Leach. Also an explanation of the terms used in entomology; a calendar of the times of appearance and usual situations of near 3,000 species of British Insects; with instructions for collecting and fitting up objects for the microscope. <em>Thomas Boys, London.</em> 496 pp., 12 pls. [details]
original description (of Carabis Marchand, Lamy & de Boisvillette, 1874) Marchand, A., Lamy, de Boisvillette. (1874). Statistique Scientifique d'Eure-et-Loire. Zoologie, Ichthyologie, Ornithologie. Libraire Petrot-Garnier, Chartres, France. [details]
Taxonomy
taxonomy source
Crandall, K.A.; De Grave, S. (2017). An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list. <em>Journal of Crustacean Biology.</em> 37: 615-653. (look up in IMIS), available online at https://doi.org/10.1093/jcbiol/rux070 [details] Available for editors 
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