Corydoras aeneus
Corydoras aeneus
(green corydoras)
Fishes
Exotic
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Corydoras aeneus (Gill, 1858)

Common name: green corydoras

Taxonomy: available through www.itis.govITIS logo

Identification: Nijssen and Isbrücker (1980) treated C. aeneus as a valid species, but also recognized a C. aeneus species complex with 25 species. The key in Gosline (1940) is useful but somewhat dated. A key to a limited number of species, including distinguishing characteristics for C. aeneus, was given by Taphorn (1989). A few distinguishing characteristics and photographs appeared in Burgess (1992). Color photographs also appeared in Burgess (1989), although it is uncertain whether these represent the true C. aeneus.

Size: In aquaria, to about 7.5 cm; in nature, rarely exceeds 4 cm SL.

Native Range: Tropical America. Widespread in South America including, but not limited to, Trinidad (type locality), and the Amazon and Orinoco basins; from Venezuela and the Guianas in the north to São Paulo and Mato Grosso, Brazil, in the south (Nijssen and Isbrücker 1980).

US auto-generated map Legend USGS Logo
Alaska auto-generated map
Alaska
Hawaii auto-generated map
Hawaii
Caribbean auto-generated map
Puerto Rico &
Virgin Islands
Guam auto-generated map
Guam Saipan
Interactive maps: Point Distribution Maps

Nonindigenous Occurrences: Established in streams on Oahu and Kauai, Hawaii, since about 1984 (Devick 1991a, 1991b; Mundy 2005).

Means of Introduction: Probable aquarium release or escape (Mundy 2005).

Status: Established on Oahu and Kauai, Hawaii (Devick 1991a, 1991b; Mundy 2005).

Impact of Introduction: Unknown.

Remarks: This species is one of the most common Corydoras in the aquarium trade (Burgess 1989).

There are no known voucher specimens, although preserved specimens are likely in the possession of Hawaii Department of Land and Natural Resources (M. Yamamoto, personal communication). No catalogued specimens exist at the Bishop museum as of February 2012.

References: (click for full references)

Burgess, W.E. 1989. An atlas of freshwater and marine catfishes: a preliminary survey of the Siluriformes. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.

Burgess, W.E. 1992. Colored atlas of miniature catfish: every species of Corydoras, Brochis, and Aspidoras. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.

Devick, W.S. 1991a. Disturbances and fluctuations in the Wahiawa Reservoir ecosystem. Project F-14-R-15, Job 4, Study I. Division of Aquatic Resources, Hawaii Department of Land and Natural Resources. 21 pp.

Devick, W.S. 1991b. Patterns of introductions of aquatic organisms to Hawaiian freshwater habitats. 189-213 in New directions in research, management and conservation of Hawaiian freshwater stream ecosystems. Proceedings of the 1990 symposium on freshwater stream biology and fisheries management, Division of Aquatic Resources, Hawaii Department of Land and Natural Resources.

Gosline, W.A. 1940. Revision of the neotropical catfishes of the family Callichthyidae. Stanford Ichthyological Bulletin 2(1):1-29.

Mundy, B.C. 2005. Checklist of the Fishes of the Hawaiian Archipelago Bishop Museum Bulletins in Zoology 6. 704 pp.

Nijssen, H., and I.J.H. Isbrücker. 1980. A review of the genus Corydoras Lacépède, 1803 (Pisces, Siluriformes, Callichthyidae). Bijdragen tot de Dierkunde 50(1):190-220.

Taphorn, D.C. 1989. Los peces de la familia Callichthyidae de la cuence del Río Apure. BioLlania (Guanare, Venezuela) 6:15-50.

Yamamoto, M. - Biologist, Division of Aquatic Resources, Hawaii Department of Land and Natural Resources, Honolulu, HI.

Other Resources:
FishBase Fact Sheet

Author: Leo Nico, and Pam Schofield

Revision Date: 2/2/2012

Citation Information:
Leo Nico, and Pam Schofield, 2017, Corydoras aeneus (Gill, 1858): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=336, Revision Date: 2/2/2012, Access Date: 11/21/2017

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.

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Page Last Modified: Monday, April 24, 2017

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Citation information: U.S. Geological Survey. [2017]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/21/2017].

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