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eight days later about 30 m from the site of the female; he had watery milt expressable with slight pressure. Both fish were caught in a gravel-pit pond connected to the river. Data on microhabitat used by radio-tagged Colorado squawfish and razorback sucker has not yet been analyzed. These and other data on movement and spawning success will later be evaluated in relation to results of Instream Flow Incremental Methodology (IFIM) studies being conducted by FWS. The movement of adult squawfish into the lower 2.2 miles of the Gunnison River and the collection of one larva there indicates that spawning may occur in this reach. It is possible also that this larva might have drifted downstream from the reach of the Gunnison River above the Redlands Diversion Dam. In any case, capture of this larva demonstrates that spawning did occur somewhere in the Gunnison River. The movement of one radio-tagged squawfish to the base of the Price Stub Dam increases the known range of the Colorado squawfish by 3.3 miles, as none had been located upstream from the Grand Valley Diversion Dam (RM 185.1) in recent years. Movement of squawfish over the diversion dam may be possible only during years with above--normal flows, as was the case in 1986. This and the similar movement of a fish to the base of Redlands Dam on the Gunnison River may indicate an effort to move to spawning areas, perhaps areas immediately below or somewhere above the respective dams. Alternatively, such movements may show that dam plunge pools are good feeding and resting habitat sought by Colorado squawfish during low summer flows. Two additional adult Colorado squawfish (not included in electrofishing spring or fall catch-per-unit data) were captured from the Redlands Diversion Dam plunge pool during early August, when we were testing some new electrofishing equipment; these fish 15