WoRMS taxon details
Ompok bimaculatus (Bloch, 1794)
281881 (urn:lsid:marinespecies.org:taxname:281881)
accepted
Species
Callichrous bimaculatus (Bloch, 1794) · unaccepted
Callichrous chechra (Hamilton, 1822) · unaccepted
Callichrous macrophthalmus (Blyth, 1860) · unaccepted (misspelling)
Callichrous nebulosus (Swainson, 1839) · unaccepted
Callichrus affinis (Swainson, 1839) · unaccepted (misspelling)
Callichrus nebulosus (Swainson, 1839) · unaccepted
Ompak bimaculatus (Bloch, 1794) · unaccepted (misspelling)
Ompok macrophthalmus (Blyth, 1860) · unaccepted > misspelling - incorrect subsequent spelling
Ompok macropthalmos (Blyth, 1860) · unaccepted > junior subjective synonym
Pseudosilurus bimaculatus (Bloch, 1794) · unaccepted
Pseudosilurus macropthalmos Blyth, 1860 · unaccepted > superseded combination
Pseudosilurus macropthalmus Blyth, 1860 · unaccepted (misspelling)
Silurus affinis Swainson, 1839 · unaccepted
Silurus bimaculatus Bloch, 1794 · unaccepted
Silurus chechra Hamilton, 1822 · unaccepted
Silurus duda Hamilton, 1822 · unaccepted
Silurus microcephalus Valenciennes, 1840 · unaccepted
Silurus mysoricus Valenciennes, 1840 · unaccepted (synonym)
Silurus nebulosus Swainson, 1839 · unaccepted
Wallago bimaculatus (Bloch, 1794) · unaccepted
Wallago microcephalus (Valenciennes, 1840) · unaccepted
(of Silurus bimaculatus Bloch, 1794) Bloch, M. E. (1794). Naturgeschichte der ausländischen Fische. <em>Berlin.</em> v. 8. i-iv + 1-174, Pls. 361-396. [details]
Froese, R. and D. Pauly. Editors. (2026). FishBase. Ompok bimaculatus (Bloch, 1794). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=281881 on 2026-05-30
Date
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Nomenclature
original description
(of Silurus affinis Swainson, 1839) Swainson, W. (1839). On the natural history and classification of fishes, amphibians, & reptiles, or monocardian animals. <em>Spottiswoode & Co., London.</em> v. 2: i-vi + 1-452. [details]
original description (of Silurus bimaculatus Bloch, 1794) Bloch, M. E. (1794). Naturgeschichte der ausländischen Fische. <em>Berlin.</em> v. 8. i-iv + 1-174, Pls. 361-396. [details]
original description (of Silurus chechra Hamilton, 1822) Hamilton, F. (1822). An account of the fishes found in the river Ganges and its branches. <em>Edinburgh & London.</em> i-vii + 1-405, Pls. 1-39. [Often seen as Hamilton-Buchanan or Buchanan-Hamilton; in work as Hamilton [formerly Buchanan].]., available online at https://doi.org/10.5962/bhl.title.6897
page(s): 152, 375 [details]
original description (of Silurus duda Hamilton, 1822) Hamilton, F. (1822). An account of the fishes found in the river Ganges and its branches. <em>Edinburgh & London.</em> i-vii + 1-405, Pls. 1-39. [Often seen as Hamilton-Buchanan or Buchanan-Hamilton; in work as Hamilton [formerly Buchanan].]., available online at https://doi.org/10.5962/bhl.title.6897
page(s): 152, 375 [details]
original description (of Silurus nebulosus Swainson, 1839) Swainson, W. (1839). On the natural history and classification of fishes, amphibians, & reptiles, or monocardian animals. <em>Spottiswoode & Co., London.</em> v. 2: i-vi + 1-452. [details]
original description (of Silurus microcephalus Valenciennes, 1840) Cuvier, G.; Valenciennes A. (1840). Histoire naturelle des poissons. <em>Tome quatorzième. Suite du livre seizième. Labroïdes. Livre dix-septième. Des Malacoptérygiens. Pitois-Levrault, Paris.</em> v. 14: i-xxii + 2 pp. + 1-464 + 4 pp., Pls. 389-420. [details]
original description (of Silurus mysoricus Valenciennes, 1840) Cuvier, G.; Valenciennes A. (1840). Histoire naturelle des poissons. <em>Tome quatorzième. Suite du livre seizième. Labroïdes. Livre dix-septième. Des Malacoptérygiens. Pitois-Levrault, Paris.</em> v. 14: i-xxii + 2 pp. + 1-464 + 4 pp., Pls. 389-420. [details]
original description (of Pseudosilurus macropthalmos Blyth, 1860) Blyth, E. (1860). Report on some fishes received chiefly from the Sitang River and its tributary streams, Tenasserim Provinces. <em>Journal of the Asiatic Society of Bengal .</em> v. 29 (no. 2): 138-174.
page(s): 156 [details]
original description (of Silurus bimaculatus Bloch, 1794) Bloch, M. E. (1794). Naturgeschichte der ausländischen Fische. <em>Berlin.</em> v. 8. i-iv + 1-174, Pls. 361-396. [details]
original description (of Silurus chechra Hamilton, 1822) Hamilton, F. (1822). An account of the fishes found in the river Ganges and its branches. <em>Edinburgh & London.</em> i-vii + 1-405, Pls. 1-39. [Often seen as Hamilton-Buchanan or Buchanan-Hamilton; in work as Hamilton [formerly Buchanan].]., available online at https://doi.org/10.5962/bhl.title.6897
page(s): 152, 375 [details]
original description (of Silurus duda Hamilton, 1822) Hamilton, F. (1822). An account of the fishes found in the river Ganges and its branches. <em>Edinburgh & London.</em> i-vii + 1-405, Pls. 1-39. [Often seen as Hamilton-Buchanan or Buchanan-Hamilton; in work as Hamilton [formerly Buchanan].]., available online at https://doi.org/10.5962/bhl.title.6897
page(s): 152, 375 [details]
original description (of Silurus nebulosus Swainson, 1839) Swainson, W. (1839). On the natural history and classification of fishes, amphibians, & reptiles, or monocardian animals. <em>Spottiswoode & Co., London.</em> v. 2: i-vi + 1-452. [details]
original description (of Silurus microcephalus Valenciennes, 1840) Cuvier, G.; Valenciennes A. (1840). Histoire naturelle des poissons. <em>Tome quatorzième. Suite du livre seizième. Labroïdes. Livre dix-septième. Des Malacoptérygiens. Pitois-Levrault, Paris.</em> v. 14: i-xxii + 2 pp. + 1-464 + 4 pp., Pls. 389-420. [details]
original description (of Silurus mysoricus Valenciennes, 1840) Cuvier, G.; Valenciennes A. (1840). Histoire naturelle des poissons. <em>Tome quatorzième. Suite du livre seizième. Labroïdes. Livre dix-septième. Des Malacoptérygiens. Pitois-Levrault, Paris.</em> v. 14: i-xxii + 2 pp. + 1-464 + 4 pp., Pls. 389-420. [details]
original description (of Pseudosilurus macropthalmos Blyth, 1860) Blyth, E. (1860). Report on some fishes received chiefly from the Sitang River and its tributary streams, Tenasserim Provinces. <em>Journal of the Asiatic Society of Bengal .</em> v. 29 (no. 2): 138-174.
page(s): 156 [details]
Ecology
ecology source
Looby, A.; Erbe, C.; Bravo, S.; Cox, K.; Davies, H. L.; Di Iorio, L.; Jézéquel, Y.; Juanes, F.; Martin, C. W.; Mooney, T. A.; Radford, C.; Reynolds, L. K.; Rice, A. N.; Riera, A.; Rountree, R.; Spriel, B.; Stanley, J.; Vela, S.; Parsons, M. J. G. (2023). Global inventory of species categorized by known underwater sonifery. <em>Scientific Data.</em> 10(1). (look up in IMIS), available online at https://doi.org/10.1038/s41597-023-02745-4 [details] 
Other
additional source
Froese, R. & D. Pauly (Editors). (2026). FishBase. World Wide Web electronic publication. version (04/2025)., available online at https://www.fishbase.org [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
To Barcode of Life (230 barcodes)
To Biodiversity Heritage Library (1 publication) (from synonym Silurus affinis Swainson, 1839)
To Biodiversity Heritage Library (10 publications) (from synonym Pseudosilurus bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (10 publications) (from synonym Callichrus affinis (Swainson, 1839))
To Biodiversity Heritage Library (15 publications) (from synonym Silurus nebulosus Swainson, 1839)
To Biodiversity Heritage Library (16 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Callichrus nebulosus (Swainson, 1839))
To Biodiversity Heritage Library (32 publications) (from synonym Silurus bimaculatus Bloch, 1794)
To Biodiversity Heritage Library (4 publications) (from synonym Callichrous chechra (Hamilton, 1822))
To Biodiversity Heritage Library (40 publications) (from synonym Callichrous bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (5 publications) (from synonym Wallago bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (5 publications) (from synonym Wallago microcephalus (Valenciennes, 1840))
To Biodiversity Heritage Library (6 publications) (from synonym Silurus mysoricus Valenciennes, 1840)
To Biodiversity Heritage Library (7 publications) (from synonym Silurus chechra Hamilton, 1822)
To Biodiversity Heritage Library (7 publications) (from synonym Silurus duda Hamilton, 1822)
To Biodiversity Heritage Library (8 publications) (from synonym Callichrous macrophthalmus (Blyth, 1860))
To Biodiversity Heritage Library (9 publications) (from synonym Silurus microcephalus Valenciennes, 1840)
To European Nucleotide Archive, ENA (Ompok bimaculatus)
To Fishbase (from synonym Silurus bimaculatus Bloch, 1794)
To Fishbase (from synonym Silurus affinis Swainson, 1839)
To Fishbase (from synonym Silurus nebulosus Swainson, 1839)
To Fishbase (from synonym Callichrous macrophthalmus (Blyth, 1860))
To Fishbase (from synonym Pseudosilurus macropthalmus Blyth, 1860)
To Fishbase (from synonym Ompak bimaculatus (Bloch, 1794))
To Fishbase (from synonym Pseudosilurus bimaculatus (Bloch, 1794))
To Fishbase (from synonym Callichrous bimaculatus (Bloch, 1794))
To Fishbase (from synonym Pseudosilurus macropthalmos Blyth, 1860)
To Fishbase (from synonym Wallago bimaculatus (Bloch, 1794))
To GenBank (27479 nucleotides; 406 proteins)
To GenBank (27479 nucleotides; 406 proteins) (from synonym Silurus bimaculatus Bloch, 1794)
To Global Biotic Interactions (GloBI)
To IUCN Red List (Near Threatened)
To ITIS
To Biodiversity Heritage Library (1 publication) (from synonym Silurus affinis Swainson, 1839)
To Biodiversity Heritage Library (10 publications) (from synonym Pseudosilurus bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (10 publications) (from synonym Callichrus affinis (Swainson, 1839))
To Biodiversity Heritage Library (15 publications) (from synonym Silurus nebulosus Swainson, 1839)
To Biodiversity Heritage Library (16 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Callichrus nebulosus (Swainson, 1839))
To Biodiversity Heritage Library (32 publications) (from synonym Silurus bimaculatus Bloch, 1794)
To Biodiversity Heritage Library (4 publications) (from synonym Callichrous chechra (Hamilton, 1822))
To Biodiversity Heritage Library (40 publications) (from synonym Callichrous bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (5 publications) (from synonym Wallago bimaculatus (Bloch, 1794))
To Biodiversity Heritage Library (5 publications) (from synonym Wallago microcephalus (Valenciennes, 1840))
To Biodiversity Heritage Library (6 publications) (from synonym Silurus mysoricus Valenciennes, 1840)
To Biodiversity Heritage Library (7 publications) (from synonym Silurus chechra Hamilton, 1822)
To Biodiversity Heritage Library (7 publications) (from synonym Silurus duda Hamilton, 1822)
To Biodiversity Heritage Library (8 publications) (from synonym Callichrous macrophthalmus (Blyth, 1860))
To Biodiversity Heritage Library (9 publications) (from synonym Silurus microcephalus Valenciennes, 1840)
To European Nucleotide Archive, ENA (Ompok bimaculatus)
To Fishbase (from synonym Silurus bimaculatus Bloch, 1794)
To Fishbase (from synonym Silurus affinis Swainson, 1839)
To Fishbase (from synonym Silurus nebulosus Swainson, 1839)
To Fishbase (from synonym Callichrous macrophthalmus (Blyth, 1860))
To Fishbase (from synonym Pseudosilurus macropthalmus Blyth, 1860)
To Fishbase (from synonym Ompak bimaculatus (Bloch, 1794))
To Fishbase (from synonym Pseudosilurus bimaculatus (Bloch, 1794))
To Fishbase (from synonym Callichrous bimaculatus (Bloch, 1794))
To Fishbase (from synonym Pseudosilurus macropthalmos Blyth, 1860)
To Fishbase (from synonym Wallago bimaculatus (Bloch, 1794))
To GenBank (27479 nucleotides; 406 proteins)
To GenBank (27479 nucleotides; 406 proteins) (from synonym Silurus bimaculatus Bloch, 1794)
To Global Biotic Interactions (GloBI)
To IUCN Red List (Near Threatened)
To ITIS
