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<br />J "........iiij(j['.:.~ l,;ljt ll.~~~I"'~~~f~ llM't.-" -, ....h ~;.,"'~ ,"'...-. ~, ,.'~;.;'",,,,,,,,,,,,,,;. 6.:0.2 ..;.:....'k_. . "..:...:<><.......:.x....:.: "1tL. <br /> <br />.j <br /> <br />" ~ <br /> " <br /><,\0- <br />t <br />! <br />1 <br /> , <br />.- <br />I ;, <br />t ! <br />j " <br /> I <br />~ I; <br /> I <br />Ii <br />... '. !' <br />i i <br />f !: <br />, I' <br />f 'I <br />1 I, <br />I <br />1 I <br /> I <br /> I <br />1 I, <br />I: <br />Ii <br />,. <br />} ; <br />~ j <br /> <br /> <br />'....e. ., uta" <br /> <br />Gila. Ph.D. thesis, Univ. of Mich., 1960: 174 pp., 10 figs., <br />35 pIs.). <br />Richardsonius balteatus hydrophlo:c (Cope) - Redside shiner. <br />Ptychocheilus Lucius Girard - Colorado squawfish. This large fish, <br />often found with the humpback chub, is also rapidly disappear- <br />ing due to destruction of its habitat. <br />lotichthys phlegethontis (Cope) - least chub. <br />Rhinichthys osculus (Girard) - speckled dace. This is one of the <br />most widespread and variable fishes in western United States. <br />If subspecies are to be recognized, then the typical form (desig- <br />nated by Tanner, 1936, as Apocope oscula oscula) should not <br />be included in the Utah fauna. Named subspecies in Utah in- <br />clude R. o. adobe (Jordan and Evermann), of the Sevier River <br />drainage, and R. o. yarrowi (Jordan and Evermann) in the <br />Colorado River Basin. <br />Rhinichthys cataractae (Valenciennes) - longnose dace. This <br />species is known in Utah only from streams tributary to Utah <br />Lake and Great Salt Lake. <br />.Pimephales promelas Rafinesque - fathead minnow. <br />.Pimephales vigilax vigilax (Baird and Girard) - bullhead minnow. <br />This fish was accidentally introduced into the Sevier River <br />drainage on October 7, 1953 along with several thousand chan- <br />nel catfish received from San Angelo, Texas (letter of January <br />11, 1954, from M. J. Madsen). Whether it has become estab- <br />lished is not known. <br />Lepidomeda mollispinis mollispinis Miller and Hubbs - Virgin <br />River Eipinedace. This fish was listed by Tanner (1936) under <br />the name Lepidomeda vittata,but it has since been recognized <br />as a distinct species by Miller and Hubbs (1960). <br />Pltzgopterus argentissimus Cope - woundfin. This species and the <br />preceding belong to a unique group of minnows known only <br />from the Colorado River Basin (Miller and Hubbs, 1960). The <br />woundfin occurs only in the Virgin River drainage. <br /> <br /> <br />CATOSTOMIDAE <br /> <br />Sucker family <br /> <br />Catostomus ardens Jordan and Gilbert - Utah sucker. <br />Catostomus fecundus Cope and Yarrow - webug sucker. The <br />status of this sucker is still uncertain. Preliminary study of <br />the type specimens by tl\e junior author as well as by Carl L. <br /> <br />164 <br /> <br />I <br /> <br /> <br />..,,,:.~.... <br />""'~''''''rff ",....'\'."-..p,......-......~,~",~"".",.,,..,~,.....,,"""V'~_~~_.. ~="",.",~ .~. ~_ .~,..,.! <br />"'. .:.' .. .. .... .,'... .' ., '..,.... ".., . .".", " ' . "V-" ,...~,"'2"~.- '''''~~-'''."'' -- "."., <br />, , .' . . . ',' . ' - ,. <br /> <br />"I <br />