WKITINCxS OF C. A. WHITE. 169 



Page. 



Corbicula cytheri/ormis, M. & H., pi. xxii, figs. 1-6 31,437 



Gorbicvla (Leptesthes) planumbona, Meek, pi. xxii, figs. 7-9 31,437 



Oorhicula (Leptcsthes) cardiniceformis. White, pi. xxii, figs. 10-15 31,437 



Corbicula obesa, Wliite, pi. xxiii, tigs. 7-11 31,437 



Neritina volvilineala, White, pi. xxiii, figs. 12 aud 13 52,458 



Neritina bruneri, Wliite, pi. xxiii, figs. 14 and 15 53, 459 



Neritina {Velatella) baptista, White, pi. xxiii, figs. 16-20 52,458 



Melanopsis ameiicana, n. g., White, 1883, pi. xxiii, figs. 21-23 55,461 



Limnma (Pleurolimncea) tenuicostata, M. & H,, pi. xxiii, fig. 24 39, 445 



Gassiopella turricula. White, pi. xxiii, figs. 25-29 58, 464 



Viviparus retusug, M. & H.', pi. xxiv, figs. 1-3 61, 467 



Yiviparus conradi, M. & H., pi. xxiv, figs. 4-6 61,467 



Yiijiparus leidyi, M. & H., pi. xxiv, fig. 7 61,467 



Yiviparus leidyi var. formosus, M. & H., pi. xxiv, figs. 8 and 9 61, 467 



Yiviparus trochiformis, M. & H., pi. xxiv, figs. 10-16 61-467 



Tulotoma thompsoni, White, pi. xxiv, figs. 17-22 61, 467 



Yiviparus jieculiaris, M. & H., pi. xxiv, figs. 23 and 24 CI, 467 



Yiviparus plicaprcssus, White, pi. xxiv, figs. 25 and 26 61, 467 



Acroloxus minutus, M. & H., pi. xxiv, fig. 27 ". 45, 451 



Physa copei, White, pi. xxv, figs. 1 and 2 44,450 



Physafelix, White, pi. xxv, fig. 3 44,450 



Bulinus disjunctus. White, pi. xxv, figs. 4 and 5 45, 451 



Bvlinus athvus. White, pi. xxv, figs. 6 and 7 44, 450 



Bulinus longiuseulus, M. & H., pi. xxv, fig. 8 45, 451 



Bulinus rhomboideus, M. & H., pi. xxv, fig. 9 45, 451 



Bulinus subelongatiis, M. & H., pi. xxv, figs. 10 and 11 44,450 



Helix kanabensis, White, pi. xxv, figs. 12-14 48, 4.54 



Columna teres, M. &. H. , pi. xxv, tig. 15 48, 454 



Oolumna vermicula, M. & H., pi. xxv, fig. 16 48, 454 



Yiviparus prudentius, White, pi. xxv, tigs. 17 and 18 61,467 



Yiviparus panguitchensis. White, pi. xxv, figs. 19-21 61, 467 



Yiviparus reynoldsianus, M. & H., pi. xxv, figs. 22 and 23 61, 467 



Thaumastus limnceiformis, M. & H. , pi. xxv, fig. 24 48, 454 



Melania viyorningensis, Meek, i)l. xxvi, tigs. 1-3 54, 460 



Melania insmdpta. Meek, pi. xxvi, tigs. 4 and 5 54, 460 



Goniobasis convexa, M. &, H., pi. xxvi. tigs. 6 and 7 57, 463 



Goniobasis convexa var. impressa, M. & H., pi. xxvi, fig.s. 8 and 9 57, 463 



Goniobasis ? omitta, M. & H., pi. xxvi, tig. 10 57, 463 



Goniobasis tenuicarinata, M. & H., pi. xxvi, fig. 11 57, 463 



Goniobasis gracilenta. Meek, pi. xxvi, tigs. 12 and 13 57, 463 



Goniobasis nebrascensis, M. & H., pi. xxvi, figs. 15 and 16 57, 463 



Goniobasis invenusta, M. & H. , pi. xi vi, fig. 17 57, 463 



Goniobasis sublcevis, M. &- H. , pi. xxvi, fig. 18 57, 463 



lAmntea ? compactilis, Meek, pi. xxvi, tig. 14 39, 445 



fJerithidea 1 nebrascensis, M. &. H. , pi. xxvi, tig. 19 57, 463 



Micropyrgus minutulus, M. & H.. pi. xxvi, tig. 20 59, 465 



Oampeloma producta. White, i)l. xxvi, fig.s. 21-27 63, 469 



Campeloma multilineata, M. & H., pi. xxvii, figs. 1-7 63, 469 



Oampeloma vettila, M. & H. , pi. xx vii, figs. 8 and 9 63, 469 



Oampeloma multistriata, M. & H., pi. xxvii, fig. 15 63, 469 



Yiviparus leai, M. & H., pi. xxvii, figs. 10-14 61,467 



Planorbis cnnvolutus, M. & H., pi. xxvii, fig. 16 41, 447 



Planorbis (Bathyomphalus) planvconvcxus, M. & li., pi. xxvii, figs. 17 and 18 41,447 



Planorbis (Bathyompkalus) amplexns, M. & il., pi. xxvii, figs. 19 and 20 41,447 



Planorbis (Bathyomphalus) kanabensis, M. & H., pi. xxvii, figs. 21-23 41, 447 



Yalvata? inoiitannensis, Me(;k, pi. xxvii, fig. 24 64, 470 



Yalvata subumbilicata, M. & H., pi. xxvii, fig. 25 64, 470 



Hyalina ? evansi, M. & H., jd. xxvii, fig. 26 46, 452 



Ryalina ? occidentalis,M. &:.Il., pi. xxvii, fig. 27 46,452 



Helix? vetusta, M. &. H., pi. xxvii, fig. 28 48,454 



Helix evanstonensis, White, pi. xxvii, figs. 29-31 48, 4.54 



Helix se^mlta, Whitt^ 48, 454 



Yitrina obliqun,'M.. & H., pi. xxvii, flgs. 32and33 46,4.52 



Goniobasis ? subtortuosa, M. & H., pi. xxvii, fig. 34 57,463 



Hydrobia utahensis. White, pi. xxvii, fig. 35 60, 466 



