WRITINGS OF C. A. WHITE. 169 



Oorbicula cytheriformis, M. & H., pi. xxii, flga. 1-6 31, 437 



Gorhicula (Leptcsthes) planiimbona, Meek, pi. xxii, figs. 7-9 31, 437 



Oorbicula (Leptesthes) cardiniceformis. White, pi. xxii, figs. 10-15 31,437 



Oorbicula obesa, White, pi. xxiii, figs. 7-11 31,437 



Neritina volviliaeata, White, pi. xxiii, flgs. 12 aud 13 52, 4.'i8 



Neriiina bruneri, White, pi. xxiii, flga. 14 and 15 53, 4.')9 



Nerilina (Velatella) baptista, White, pi. xxiii, figs. 16-20 52,458 



Melanopnis americana, n. g.. White, 1883, pi. xxiii, figs. 21-23 55,461 



Limncea (Pleurolimnma) tenuicostata, M. & H., pi. xxiii, fig. 24 39, 445 



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



Viviparus retusus, M. & II., pi. xxiv, figs. 1-3 61, 467 



Viviparus conradi, M. & H., i)l. xxiv, figs. 4-6 61,467 



Viviparus Icidyi, M. & H., pi. xxiv, fig. 7 61,467 



Viviparus leidyi var. formosus, M. & H., pi. xxiv, flgs. 8 and 9 61, 467 



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



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



Viviparus peculiaris, M. & H., pi. xxiv, flgs. 23 and 24 61,467 



Viviparus pHcapressus, White, pi. xxiv, figs. 25 and 26 61, 467 



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



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



Physa felix, White, pi. xxv, fig. 3 44, 450 



Bulintis disjunctus, White, pi. xxv, flgs. 4 and 5 45, 451 



Bulinus atavus, White, pi. xxv, flgs. 6 and 7 44, 450 



Bulinus longiusculus, M. & H., pi. xxv, flg. 8 45,451 



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



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



Helix kanabcnsis, White, pi. xxv, flgs. 12-14 48, 4.'54 



Oolumna teres, M. & II., pi. xxv, fig. 15 48,454 



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



Viviparus prudentius, White, pi. xxv, figs. 17 and 18 61,467 



Viviparus panguitchensis, White, pi. xxv, flgs. 19-21 61, 467 



Viviparus reynoldsianus, M. & H., pi. xxv, flgs. 22 and 23 61,467 



Tkaumastus limnceiformis, M. & H., pi. xxv, flg. 24 48, 454 



Melania wyomingensis, Meek, i)l. xx vi, flgs. 1-3 54, 460 



Melania insculpta, Meek, pi. xxvi, flga. 4 and 5 54, 460 



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



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



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



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



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



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



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



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



Limncea ? c.ompactilis, Meek, pi. xxvi, tig. 14 39, 445 



Oerithidea 1 nebrascensis, M. & H., pi. xxvi, Hg. 19 57,463 



Micropyrgus minutulus, M. & H., pi. XKvi, flg. 20 59,465 



Oampeloma producta. White, pi. xxvi, fig.s. 21-27 63, 469 



Oampeloma niultilineata, M. & H., pi. xxvii, figs. 1-7 63, 469 



Oampeloma vefula, M. & H. , pi. xx vii, flgs. 8 and 9 63, 469 



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



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



Planorbis convolutns, M. & H., pi. xxvii, flg. 16 41, 447 



Planorbis (Bathyomphalus) plaiioconvexus,"M.. <fc H., pi. xxvii, figs. 17 and 18 41, 447 



Planorbis (Bathyomphalus) amplexus, M. &, E., pi. xxvii, figs. 19 and 20 41, 447 



Planorbis {Bathyomphalus} kanabensis, M. & H., id. xxvii, figs. 21-23 41, 447 



Valvata ? montanaensis. Meek, pi. xxvii, flg. 24 64, 470 



Valvata subum.bilicata, M. & H., pi. xxvii, fig. 25 64, 470 



Hyalina 1 evansi, M. & II., pi. xxvii, flg. 26 46, 452 



Hyalina ? occidentalis , M. & H., 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, 454 



Helix sepulta. White 48,454 



Vitrina obliqua,M.. & H., pi. xxvii, fig,s. 32and33 46,4.52 



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



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



