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Lost River sucker : ウィキペディア英語版 | Lost River sucker
The Lost River sucker (''Deltistes luxatus'') is a species of ray-finned fish in the family Catostomidae. It is the only living member of the genus ''Deltistes''. It is found only in California and Oregon. Its population is much reduced from historical numbers for a number of reasons. It is a federally listed endangered species of the United States.〔 This species is known as the C'waam by the local Native American Nation, the Klamath Tribes. ==Description== This fish is one of the largest suckers, capable of reaching in length. It can be identified by its long snout with a small hump on top. It is dark on the back and sides and whitish or yellowish on the belly.〔USFWS. (''Deltistes luxatus'' Recovery Plan. ) (March 1993). Retrieved October 6, 2011.〕 Its lifespan can exceed 40 years.〔(''Deltistes luxatus''. ) USGS Western Fisheries Research Center, Klamath Falls Field Station. Retrieved October 6, 2011.〕 It does not reach sexual maturity until six to 14 years of age, most maturing around age 9.〔(''Deltistes luxatus''. ) The Nature Conservancy. Retrieved October 6, 2011.〕
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