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~. O <br />~ M <br />Base of left pectoral fin-ray,14.3 mm T.L. From <br />a specimen at least 350 mm S.L. <br />Catostomus latipinnis, flannelmouth sucker <br />Neurocranium (incomplete), 33.6 mm T.L. From <br />a specimen ca. 400 mm S.L. <br />4. Main room, N-S T. Tr, Grid H-19, 25-50 cm. June <br />25,1969, John Ware III and Bruce Harrill. <br />Catostomus discobolus <br />Left maxilla (broken), 16.2 mm T.L. From a <br />specimen at least 280 mm S.L. <br />5. Main room, N-S T. Tr, Grid I-19, 25-58 cm. June 26, <br />1969, John Ware III and Bruce Harrill. <br />Catostomus discobolus <br />Dennethmoid (broken),12.8 mm long,13.9 mm <br />wide. From a specimen ca. 275 mm S.L. <br />6. Main room, N-S T. Tr, Grid I-19, 15-20 cm. June 24, <br />1969, Bruce Harrill and John Ware III. <br />Catostomus discobolus <br />Right dentary (incomplete). From a specimen <br />ca.260 mm S.L. <br />7. Pack rays nest near FS #3 and FS #5. June 17, 1969, <br />Robert Page. <br />Posterior parts of 3 vertebral columns of which <br />darker specimens (Figure 2D) represent Gila <br />elegans. <br />N.B. All of above remains are non-mineralized, either <br />because of their relative recency or dryness of <br />the cave environment. The bones are very well <br />preserved; some might be at least as old as those <br />of the California condor. <br />8. Cave passageway -pack rat's nest to North. June <br />18, 1969, Robert Page. <br />5 fossil cyprinid vertebrae (articulated), tenta- <br />tively referred to Gila. From caudal part of ver- <br />tebral column of a Large munnow around 400 <br />mm S.L. <br />9. E-W Tr, Grid GG, 5-10 cm. June 23,1939, Lawrence <br />Powers, Robert Euler, Robert Page. <br />Gila elegans (probably) <br />Complete urohyal, 27.5 mm T.L. From a fish <br />ca. 330 mm S.L. <br />References <br />Behnke, R.J., and D.E. Benson <br />1980 Endangered and threatened fishes of the up- <br />per Colorado River basin. Coop. Ext. Serv., <br />Colorado State University, Bulletin 503A:1-34, <br />illus. <br />Gehlbach, F.R., and R.R. Miller <br />1961 Fishes from archaeological sites in northern <br />New Mexico. Southwestern Nat,, 6:2-8, figs. <br />1-2. <br />Holden, P.B., and W.L. Hinckley <br />1980 Gila robusta Baird and Girard. Roundtail chub, <br />p. 172. In: Lee, D.S., et al., Atlas of North <br />American Freshwater Fishes. Raleigh: N. Caro. <br />State Mus. Nat. Hist. <br />Holden, P.B., and C.B. Stalnaker <br />1970 Systematic studies of the cyprinid genus Gila, <br />in the upper Colorado basal. Copeia, 1970(3): <br />409-420, figs. 1-4. <br />Miller, R.R. <br />1946 Gila cypha, a remarkable new species of cy- <br />prinidfish from the Colorado River in Grand <br />Canyon, Arizona. Jour. Wash. Acad. Sc., <br />36(12):409-415, fig. 1. <br />1955 Fish remains from archaeological sites in the <br />lower Colorado River basin, Arizona. Pap. <br />Mich. Acad. Sci., Arts, and Letters, 40(1954): <br />125-136, fig. 1, pls. 1-5. <br />Hinckley, W.L., and N.T. Alger <br />1968 Fish remains from an archeological site along <br />the Verde River, Yavapai County, Arizona. <br />Plateau, 40(3):91-97. <br />Hinckley, W.L., and J.E. Deacon <br />1968 Southwestern fishes and the enigma of "En- <br />dangered Species." Sci.,159(3822):1424-1432, <br />figs. l-3. <br />Smith, G.R., R.R. Miller, and W.D. Sable <br />1979 Species relationships among fishes of the <br />genus Gila in the upper Colorado River drain- <br />age, pp. 613-623. In Linn, R.M., ed., Proc. <br />First Conf. Res. Nat. Parks. Vol. 1, U.S. Nat. <br />Park Serv. Trans. &Proc. Ser. No. 5. <br />65 <br />