The Recently Extinct Plants and Animals Database

Asellus tomalensis Harford, 1877



Taxonomy & Nomenclature



Conservation Status

Rediscovered in 1974 or before (Bowman, 1974)

Only a local rediscovery?



California & Oregon, USA












Original scientific description:

Harford, W. G. W. (1877). Description of a new genus and three new species of sessile-eyed Crustacea. Proc. California Acad. Sci. 7: 53-55.


Other references:

Bowman, T. E. (1974). The California freshwater isopod, Asellus tomalensis, rediscovered and compared with Asellus occidentalis. Hydrobiologia 44(4): 431-441. [Abstract]

Ellis, R. J. (1971). Notes on the biology of the isopod Asellus tomalensis in an intermittent pond. Trans. American Micros. Soc. 90(1): 51-61. [Abstract]


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