Common name: dwarf gourami
Synonyms and Other Names: Colisa lalia
available through www.itis.gov
Identification: An identification key with distinguishing characteristics was given by Talwar and Jhingran (1991); distinguishing characters were also presented by Sterba (1973). Color photographs of live fish shown in Axelrod et al. (1985). Many color variants available in the aquarium trade.
Size: 5-8 cm SL.
Native Range: Tropical Asia. India, Pakistan, Bangladesh, and possibly Borneo (Jayaram 1981; Talwar and Jhingran 1992).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Colisa lalia are found here.
Table last updated 11/29/2023
† Populations may not be currently present.
Means of Introduction: Probable release or escape from fish farms.
Status: Reported from two regions in Florida. No known reproduction.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Axelrod, H.R., W.E. Burgess, N. Pronek, and J. G. Walls. 1985. Dr. Axelrod's atlas of freshwater aquarium fishes. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.
Courtenay, W.R., Jr., and D.A. Hensley. 1979. Survey of introduced non-native fishes. Phase I Report. Introduced exotic fishes in North America: status 1979. Report Submitted to National Fishery Research Laboratory, U.S. Fish and Wildlife Service, Gainesville, FL.
Courtenay, W.R., Jr., H.F. Sahlman, W.W. Miley, II, and D.J. Herrema. 1974. Exotic fishes in fresh and brackish waters of Florida. Biological Conservation 6(4):292-302.
Jayaram, K.C., 1981. The freshwater fishes of India: a handbook. Zoological Survey of India, Calcutta, India.
Ogilvie, V.E. 1969. Illustrated checklist of fishes collected from the L-15 Canal (Lake Worth Drainage District) in Palm Beach County, Florida (collection date November 8, 1969). Unpublished Report for the Florida Game and Fresh Water Fish Commission.
Sterba, G. 1973. Freshwater fishes of the world. English translation and revision from German. Two volumes. Tropical Fish Hobbyist Publications, Inc., Neptune City, NJ.
Talwar, P.K., and A.G. Jhingran, editors. 1991. Inland fishes of India and adjacent countries. A. A. Balkema, Rotterdam, The Netherlands. Two volumes.
Watters, T.G. and S.H. O'Dee. 1998. Metamorphosis of freshwater mussel glochidia (Bivalvia: Unionidae) on amphibians and exotic fishes. American Midland Naturalist 139: 49-57.
Revision Date: 6/12/2012
Peer Review Date: 6/12/2012
Nico, L., 2023, Colisa lalia (Hamilton, 1822): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=329, Revision Date: 6/12/2012, Peer Review Date: 6/12/2012, Access Date: 11/29/2023
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.