The Recently Extinct Plants and Animals Database

Pogonichthys ciscoides Hopkirk, 1974 (1973?)

Clear Lake split-tail



Taxonomy & Nomenclature



Conservation Status

Last record: 1970 (Miller et al. 1989:28)

IUCN RedList status: Extinct



Clear Lake, Lake County, California, USA


Biology & Ecology










Original scientific description:

Hopkirk, John D. (1973). Endemism in fishes of the Clear Lake region of central California. University of California Publication, Zoology 96: 1-160. Berkeley and Los Angeles: University of California Press.


Other references:

Jelks, Howard L., Walsh, Stephen J., Burkhead, Noel M., Contreras-Balderas, Salvador, Díaz-Pardo, Edmundo, Hendrickson, Dean A., Lyons, J., Mandrak, Nicholas E., McCormick, Frank, Nelson, Joseph F., Platania, Steven P., Porter, Brady A., Renaud, Claude B., Schmitter-Soto, Juan Jacabo, Taylor, Eric B. and Warren, Melvin L. Jr. (2008). Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8): 372-407.

Miller, R. R., Williams, J. D. and Williams, J. E. (1989). Extinctions of North American fishes during the past century. Fisheries 14(6): 22-38.

Moyle, P. B. (1976). Inland Fishes of California. Berkeley: University of California Press.

Murphy, G. I. (1951). The fishery of Clear Lake, Lake County, California. Calif. Fish Game 37: 439-484.

World Conservation Monitoring Centre. (1996). Pogonichthys ciscoides. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 31 May 2013.


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