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<br />e <br /> <br />e <br /> <br />4 <br /> <br />collected in slow water, eddies, backwaters and flooded canyon mouths. Juveniles <br /> <br />were caught in backwater areas and small eddies typically 2-3 feet deep. Young- <br /> <br />of-the-year were taken in shallow, warm, stagnant areas usually between a sandbar <br /> <br />and the bank." All such backwater areas were intensively seined with blocknets <br /> <br />having been set up prior to seining in several instances. <br /> <br />The humpback sucker, Xyrauchen taxanus (Abbott), also inhabits similar <br /> <br />areas according to Holden (1973). <br /> <br />Field preservation was with 10% formaldehyde. Specimens were subsequently <br /> <br />washed overnight in tap water. and preserved in 40% isopropynol. All material <br /> <br />preserved is currently curated in the Eastern New Mexico University Natural <br /> <br />History Museum, Dr. A.L. Gennaro, curator. <br /> <br />Computer graphics were done with a SYMAP, version 5, program produced by <br /> <br />the Lnboratory ~or Computer Graphics and Spatial Analysis, Harvard Center for <br /> <br />Environmental Design Studi~s, Graduate School of Design, Harvard University. <br /> <br />SY~~ is a computer program for producing maps which graphically depict <br /> <br />spatially arrayed quantitative data. .Combinations of standard computer characters <br /> <br />are used to display a scale of tone from black to white which corresponds to the <br /> <br />data value range. By assigning values to the coordinate locations of data points <br /> <br />maps may be produced. Intermediate values are extrapolated and shown between <br /> <br />any two adjacent data points. Data for the Symap projections are given in Appendix <br /> <br />t. <br /> <br />A list "of stations together with the collecting gear used at each in given <br /> <br />in Appendix II. <br /> <br />Results <br /> <br />A total of 21 species (and one inter-subgeneric hybrid) was colle~ed during <br /> <br />the survey (Table I). The squawfish. humpback.sucker, bony tail, (Gila elegans <br /> <br />Baird and Girard), and humpback chub (Gila cypha Miller) ~ound in other parts of <br /> <br />. <br />the Colorado River drainage were not collected during this survey. <br /> <br />The following 1s an account of each species collec:ed together with those <br /> <br />'I <br />