Oncorhynchus evermanni (Jordan & Grinnell, 1908:31)
San Gorgonio trout
Taxonomy & Nomenclature
Synonym/s: Salmo evermanni Jordan & Grinnell, 1908:31
Conservation Status
Invalid (synonym of O. henshawi henshawi) (Behnke, 1992)
Last record: 23 June 1935 (Miller, 1950:9)
"Angling enthusiast Richard S. Croker, of the California Division of Fish and Game, has assured me that Salmo evermanni Jordan and Snyder, which once abounded above the falls of Santa Ana River in southern California (Map I), disappeared about 1935, when he caught what may have been the last pure sample of this interesting species. Angler-artist Campbell Grant, of Carpinteria, California, has written that he fished exhaustively in this region in the fall of 1948, but caught only a few brown trout."
(Miller, 1950:2)
"According to Snyder (1940, p. 129) it may: have become extinct due to the invasion of its habitat by rainbow and brown trout. "
(Hildebrand, 1955:5)
Erroneously listed as Extinct by (USDI, 1966) according to (Miller et al., 1989:37).
Distribution & Habitat
Santa Ana River, California, USA
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Jordan, David Starr and Grinnell, Joseph. (1908). Description of a New Species of Trout (Salmo evermanni) from the Upper Santa Ana River, Mount San Gorgonio, Southern California. Proc. Biol. Soc. Wash., 21: 31-32, Pl. 2.
Other references:
Behnke, R. J. (1992). Native trout of western North America. American Fisheries Society Monograph 6. xx + 275 pp.
Benson, S. B., and Behnke, R. J. (1961). Salmo evermanni a synonym of Salmo clarki henshawi. California Fish and Game 47: 257-259.
Evermann, Barton Warren and Bryant, Harold C. (1919). California Trout. Calif. Fish and Game 5(3): 105-135, Figs. 36-47, 4 color pls.
Hildebrand, Samuel F. (1955). The trouts of North America: General remarks on classification. Fishery Leaflet 355: 1-13. [reissue of March 1955, with two additional bibliographic references that post-date the author's death (1949)]
Jordan, David Starr. (1920). The Trout of the Rio Grande. Copeia 85: 72-73. https://www.jstor.org/stable/1437005
Miller, Robert Rush. (1950). Notes on the cutthroat and rainbow trouts with the description of a new species from the Gila River, New Mexico. Occasional Papers of the Museum of Zoology, University of Michigan 529: 1-42, pl. 1.
Miller, Robert Rush, Williams, James D. and Williams, Jack E. (1989). Extinctions of North American fishes during the past century. Fisheries 14(6): 22-38.
Shapovalov, Leo. (1941). The Fresh-water Fish Fauna of California. Proc. Sixth Pac. Sci. Cong., 3: 441-446.
Snyder, John Otterbein. (1940). The Trouts of California. Cal. Fish and Game 26(2): 96-138, Figs. 27-58, Pls. 1-4 (col.).
USDI (U.S. Department of the Interior). (1966). Rare and endangered wildlife of the United States. U.S. Fish Wildl. Serv. Resour. Publ. 34. 157+ pp.