2o6 



Index 



Haldemanina Dall 



Haleanus (Viviparus) Le:i 



Halei (Physa) Lea 



Hallenbeckii (Goniobasis) Lea 



Harni (Planorbis) Pils 



Harperi (Amnicola) Dall 



Harpethensis (Anculosa) Pils 



Hartmaniana (Strephobasis) Lea 



Hatcheri (Littoridina) Pils 



Hauffenia Poll 33, 



Havaneiasis (Planorbis) Pfr 



Havanensis (Segmentina) Pils 



Hawnii (Physa) Lea no, 



Heathella Hannibal 



Helisoma Sw 10, 11, 



Hemilastena Simp 



Hemisphasrica (Ferrissia) Walk 



Hemisphsericv.s (Ancylus) Walk 



Hemistena Raf 



Hemphilli (Bythinella) Pils 



Ilemphilli (Paludestrina) Pils 



Hendersoni (Ancylus) Walk 



Hendersoni (Ferrissia) Walk 



Hendersoni (Somatogyrus) Walk 



Henslowianum (Pisidium) Shepp 



Heros (Natica) Say 



Heros (Quadrula) Say 



Heros (Unio) Say 46, 



Hesione d'Orb 



Heterodon (Unio) Lea 63, 



Heterostropha (Physa) Say 



16, 107, 108, 109, III, 



Heterostropha alba (Physa) Crand. ..in, 

 Heterostropha peninsuhe (Physa) Pils. . . 



Hildrethiana (Physa) Lea no, 



Hinkleyi (Ancylus) Walk 



Hinkleyi (Gundlachia) Walk 



Hinkleyi (Pomatiopsis) Pils 



Hinkleyi (Rhodacmea) Walk 



Hinkleyi (Somatogyrus) Walk 



Hippeutis Agassiz 10, 12, 



Hippopjeus (Unio) Lea 



Hirsutus (Planorbis) Old 13, 98, 



Hirsutus borealis (Planorbis) West 



Hjalmarsoni (Gundlachia) Pfr 



Holstonia (Margaritana) Lea 61, 



Horatia Bgt 33. 



Hordacea (Aplexa) Lea 



Hordacea (Physa) Lea 



Horni (Planorbis) Tryon too, 



Humeralis californica (Valvata) Pils 



Humerosa (Physa) Gld 16, 109, in, 



Humerosus (Somatogyrus) Walk 



Humilis (Lymnsea) Say 



Hypnorum (Aplexa) L 114, 



Hypnorum arctica (Aplexa) Cless 



Hypnorum glabra (Aplexa) DeKay 



Hypnorum tryoni (Aplexa) Curr 



Hypnorum (Bulla) L 



Idahoense (Pisidium) Roper 200 



Idiopoma Pils 1-26 



Imbecillis (Anodonta) Say 176 



Imitator (Paludestrina) Pils 138 



Imperitus (Unio) DeG 179 



Incrassata (Paludina) Lea 128 



Indianensis (Goniobasis) Pils 158 



Inosculata (Goniobasis) Tryon 159 



Integer (Lithoglyphus) Frfld 144 



Integer (Somatogyrus) Say .? 144 



Integra (Physa) Hald 108, in, 112 



Integrum (Campeloma) Say 25, 127,128 



Integrum obesum (Campeloma) Lewis. 127, 128 



Intensum (Pleurocera) Rve 151 



Intercalaris (Planorbis) Rhoads 99 



Intermedia (Bythinella) Tryon 138 



Intermedia (Pomatiopsis) Tryon 138 



Intermedia (Quadrula) Con 16- 



Interrupta (Obliquaria) Raf 186 



Intertextus (Planorbis) Sby 100 



Intertextus (Viviparus) Say 24, 125 



lo Lea 34, 35. 1-19. i99 



Iris (Eurynia) Lea 78 



Iris (Lampsilis) Lea 182 



Irrorata (Cyprogenia) Lea 179 



Irroratus (Unio) Lea 69 



Isogona (Melania) Say 14s 



Japonica (Paludina) Wood 126 



Japonicus (Viviparus) Mts 126 



Jayanum (Musculium) Pme 87 



Jenksii (Planorbis) H. F. Carp 100 



Johnsoni (Amnicola) Pils 134 



Jugosus Simp 199 



Kincaidella Hann 19, 20, 121 



Kingii (Lymnaea) Meek 9 



Kirklandi (Ancylus) Walk 120 



Kirklandi (Ferrissia) Walk 120 



Kirtlandiana (Quadrula) Lea 167 



Klamathensis (Lanx) Hann. 18, 118 



Klecakiana (Horatia) Bgt 33 



Knoxense (Pleurocera) Lea 200 



Kootaniensis (Ancylus) Bd 117 



Kootaniensis (Lanx) Bd 117 



Labiatum (Pleurocera) Lea 151 



Lachrymosa (Quadrula) Lea 167 



Lachrymosus (Unio) Lea 44 



Lachrymosa contraryensis (Quadrula) Utt. 167 



Lacustrina Sterki : . . . . 200 



Lacustris (Nautilus) Light 13 



Lacustris (Tellina) Miill 87 



Lsevapex Walk 19, 120 



Laevigata (Goniobasis) Lea 158 



Laevigata (Melania) Lam 158 



Lamellibranchia 39. 165 



Lampsilins Ort 42, 64, 178 



Lampsilis Raf 66, 78, i8o 



Lanceolatus blandus (Unio) DeG 179 



Lancides (Fisherola) Hann 18, 118 



Lancina; Hann 17, 117 



Lanx Cless 17, 117 



Lapidaria (Cyclostoma) Say 34 



Lapidaria (Pomatiopsis) Say 143 



Laqueata (Goniobasis) Say 158 



■ Lasmigona Raf 55, 59, 60, 177 



Lasmonos Raf i8o, 182 



Lastena Raf 43. S3. I7S 



Lata (Anodonta) Raf 54 



