IUCN threat status:

Extinct (EX)


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Global Range: (Zero (no occurrences believed extant)) This species formerly was abundant and widespread in lakes and sloughs of the Sacramento-San Joaquin Valley; Clear Lake (Lake County); and Pajaro River, Salinas River, and San Francisco Bay drainages, California (Moyle 2002, Page and Burr 2011). The last specimen was collected from Cache Slough, near Rio Vista, in late 1950s (Moyle 1976, Miller et al. 1989).


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Source: NatureServe

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