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<br />especially below rimes. but when the river level rises they come
<br />in close to shore to feed on drift material (Miller, 1955a).
<br />
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<br />LEAST CHUB
<br />lotichthys phlegethontis (Cope)
<br />
<br />Common Name: Least chub.
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<br />Importance
<br />
<br />This curious little species is one of the aberrant minnows found
<br />only in the Bonneville Basin. It is of value as a natural predator of
<br />mosquito larvae (Rees, 1945; Pendleton and Smart, 1954), al-
<br />though its appetite for the wrigglers seems to be seasonal. Never-
<br />theless, its increase and spread are to be encouraged within its
<br />natural range, not only because of its feeding habits but to preserve
<br />an interesting element of the native fauna. Unlike the introduced
<br />western mosquito fish (Gambusia aUinis affinis), this species readily
<br />tolerates the low temperatures of Utah's winters.
<br />
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<br />Range
<br />
<br />The least chub occurs in streams near Salt Lake City and in
<br />freshwater ponds and swamps around Great Salt Lake; it is also
<br />known from Utah Lake, Beaver River. Parowan Creek, Clear Creek
<br />and Provo River. The first specimens to be taken from Millard
<br />County were collected from springs in Snake Valley, in 1942, by
<br />C. L, L. C., and E. L. Hubbs.
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<br />82
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