95 



Couperii, (G.) Lea, 37 



crassa, CEur.) Hald., 70, 88 



crebricostata, (G.) Lea, 45, 78 



crebristriata, (G.) Lea, 87 



crenatella, CG.) Lea, 59 



crepera, (G.) Lea, 83 



crispa, (G.) Lea, 40 



crispata, (Zirphaea^ 10 



crist&ta, (G.J Anth., 47 



cruda, (G.) Lea, 47 



cruentata, CAnc.) Menke, 70 



cubicoides, (G.) Anth., 48 

 cucuUata, (Xylotrya) Norman, 10 



culta, (G.) Lea, 85 



Cumberlandiensis, (G.) Lea, 56, 80 



Cumingii, ("Jouannetia) 9 



cuneiformis, CMartesia) 11 

 Curreyana, (G.; Lea, 40, 42, 77 



Currierianum, (P.) Lea, 26 



curta, (G.) Menke, 69 



curta, CStJ Hald., 34, 76 



curtatum, (P.) Lea, 26 



curtum, (Sch.) Mighels, 63, 88 



curvatum, fP.) Lea, 29, 75 



curvicostata, CG. ) Anth., 45 



curvilabris, (G.) Anth., 57 



cuspidata, (G. ) Anth., 52 



cylindracea, (G.) Con., 81 



cylindraceum, (P.) Lea, 91 



cylindraceum, CSch.) Mighels, 63 

 cylindrica, (G.) Con., Wheatley, 81 



Decampii, (G.) Lea, 46 



decisa, (Amnicola) Hald., 12 



decora, (G.) Lea, 45 



decorata, (G.) Anth., 36, 39 



deflectus, fPlanorbisJ Say, 12 



demissum, (Sch.j Anth., 64 



densa, (G.) Anth., 53 



densecostata, (G.) Reeve, 45 



dentata, CAnc.) Couth., 67, 89 



dentata, (Anc.) Lea, 68 



dentifera, (Rocellaria) Dufo, 9 

 depygis, CG. ) Say, 49, 52, 53, 59, 79 



debygis, (G.) Say, Chenu, 75 



Deshayesiana, CG.J Lea, 42,78 



Deshayesiana, (G.J Reeve, 42 



difficilis, (G.) Lea, 44, 77 



dignum, (P.) Lea, 25 



dilatata, (Anc.) Conr., 68, 72, 89, 90 



dilatata, CL.) Lea, 32 



dilatata, (Teredo) Stimpson, 18 



dislocata, (G.) Rav., 43, 77 



dissirailis, CAnc. J) Say, 67, 68, 89 



Doolyensis, (G.) Lea, 43 



Downieana, (G.J Lea, 37 



Downiei, (L.J Lea, 34 



Draytonii, (G.J Lea, 58 



dubia, (G.J Lea, 56 



dubiosa, (G.) Lea, 56, 80 

 Duchassaingi, (Jouannetia) [Desh., 9 



Duttoniana, (^Ang.) Lea, 31, 75 



Duttonii, (G.) Lea, 40 



dux, (L.) Lea, 22, 23 



ebenum, CG.J Lea, 48, 51, 79 



Edgariana, CG.) Lea, 44, 77 



elata, (G.J Anth., 57 



elegans, (Anc.) Anth., 71 



elegantula, (G.) Anth., 47, 77 



elevatum, (P.) Lea, Adams, 74 

 elevatum, CP.) Say, 25, 26, 76 



Emeryensis, CG.J Lea, 92 



eliminata, CG. ) Anth., 46 



Elliottii, (G.) Lea, 54 



ellipsoides, (G.) Lea, 86 



elliptica, (G.J Lea, 86 



ellipticum, (Sch. J Lea, 62 

 elongatum, (P.J Lea, 26, 27, 74 



Estabrookii, (G.) Lea, 55, 80 



Estabrookii, (P.J Lea, 29 



Etowahensis, (G.) Lea, 37, 54 



exaratum, (P.J Menke, 23 



exaratum, (P.J Lea, 26, 74 



excavata, (G.) Anth., 84, 87 



excisum, (Sch. J Lea, 62, 88 

 excuratum, (P.) Conr., 22, 23, 73 



excurvatum, (P.) Conr., 22 



exigua, (MelaniaJ Conr., 14 

 exilis, (G.) Hald., 56, 57, 81 



exilis, CG. ) Hald., Adams, 57 



eximium, (P.) Anth., 26 



expansa, CG.J Lea, 79 



fabalia, CG.J Lea, 82 



fallax, CG.) Lea, 82 



fasciata, (G.) Menke,' 59 



fascinans, (G.J Lea, 83 



fasciolata, (Ang.) Reeve, 31 



fastigiatum, (P.J Anth., 27,74 



Fieldii, (Planorbia) Tryon, 12 



filum, (P. J Lea, 23, 74 



fimbriata, (XylotryaJ 11, 18 



flammata, (Anc. J Lea, 71, 90 



flava, (G.) Lea, 54 



flavescens, (G.) Lea, 76 



Florencense, (P.) Lea, 24 

 Florentianus, (Ang.) Lea, Reeve, 30 



Florentianus, (L.) Lea, 32, 76 



Floridensis, (G.J Reeve, 37 



fluvialis, (lo) Say, 20, 73 



Foremanii, CAnc.) Lea,. 71 



