14 



m. obesa, Tayl. 

 n. disjuncta, Moq. 



0. carinata, Tayl. 

 p. globosa, Tayl. 

 q. turrita, Ckll. 



r. angulata, S. C. Ckll. 



116 truncatula, Mull. — 74. 



b. major, Moq. 



c. minor, Moq. 



d. ventricosa, Moq. 



e. elegans, Jeff. 



f. microstoma, Drouet. 



g. albida, 



h. scalariformis, Jeff'. 



1. doublieri, 



k. arenosa, Gass. 

 1. fusca, 



Subg. Leptolimncea, Swains. 



117 glabra, Mull. — 22 



b. major, Gass. 



c. elongata, J<r/f. 



d. decollata, Nels. 



Ancylus, Geoff 



Subg. Ancylastrum, Moq. 



118 fluviatilis, Miill. — 67. 



b. capuloides, Jan. 



c. gibbosus, Bouvg. 



d. albidus, Jeff. 



e. costatus, F^r. 



f. strictus, Morel. 



Subg. Velletia, Gray. 



119 lacustris, L. — 41. 



b. compressus, Jeff. 



c. moquinianus, Bourg. 



d. albidus, Jeff. 



CYCLOSTOMATID^E. 



Cyclostoma, Lam. 



120 elegans, Miill. — 26. 



b. marmorea, Brown. 



c. fasciata, Moq. 



d. violacea, Desm. 



e. pallida, Moq. 



f. albescens, Moq. 



Acme, Htm. 



121 lineata, Drp.— 16. 



b. alba, 



c. sinistrorsa, y^jf. 



d. minuta, Brown. 



NERITID^E. 



Neritina, Lam. 



122 fluviatilis, L. — 32. 



b. trifasciata, Colb. 



c. undulata, Colb. 



d. cerina, Co/6. 



e. nigrescens, Colb. 



PALUDINID^E. 



Paludina, Lam. 



123 contecta, Miill. — 19. 

 b. virescens, Jeff. 



124 vivipara, 1 L.\ Auctt.- 28. 

 — fasciata, Miill. 



b. albida, N. and T. 



c. efasciata, Pick. 



d. atropurpurea, Lloyd. 



e. inflata, Loc. 



f. producta, P<i.sc. 



