INDEX OF GENERA AND SPECIES. 



295 



Page. 



Gypidala 193 



Gyraulus 34,106,153 



Gyroceras 59, 63, 154 



burlingtonensis 230 



constrictum 59 



comutes 347 



elrodi 134 



logani 63 



(Nautilus ?) inelegana 67 



rockfordonais 59 



(Trochoceraa ?) ohioensis 67 



Gyroceratites 81 



(Nautilus) inelegana 81 



? ( Trocheraa) ohioenaia 81 



Gyrodea 102,111 



conradi 102 



depressa IH 



Gyrorbia 35 



H. 



Hadrophyllum 165 



• glans 165 



Haliotidae 39 



Halobia 110 



(Daonella) lommeU. 110 



Halyaites 155 



catenulata 155 



Haminea 101,264 



minor 101 



occidentalis 101 



aubcylindrica 101, 264 



Hainitea larvatus 220 



fremonti 343 



leai 49 



mortoni 14 



vemeuilii 49 



Haploacapha 333 



(Cucullifera) eccentrica 333 



grandis 333 



Hai-paga tippana 48 



Harpes escanabise 333 



Harttia 198 



matthewi 198 



llelcion 14 



alveolus 14 



carinatns 14 



patUlifonnia 14 



aexanlcatns 14 



aubovatua 14 



Helcium alveolum 21 



carinatum 21 



patelliforme 21 



sexsulcatum 21 



aubovatum 21 



Ilelicenis 334, 227 



fuegienaia 334, 227 



HeUcidae 106,107,135,180 



Helicoceraa 104, 135, 261, 265 



? angulatum 31,49 



tortua 18 



mortoni var. tenuicostatum 104 



pariense 135 



tenuicostatua 19 



stevenaoni 361, 265 



Holicotoraa 191 



spl 191 



rago. 



Helix 28, 106, 107, 135, 137, 141, 153, 161 



(Aglaia) fidelia .. 180 



evanai 3i 



evanatonensia „ 141, 169 



kanabensis 137, 109 



leidyi 14,107,135,170 



(Monodon 1) dalUi 180 



occidentalis 17 



(Patnla) perapectiva 180 



aepulta 153 



peripheria 1 37, 170 



riparia 137, 170 



1 aepulta 169 



spatiosa. 28,221 



vetema 38,170 



? vetema 107 



vetuata 106, 161, 169 



vitrinoidea 17 



(Zonitea) marginicola 170 



Helicoceraa tortum 18,49 



HelioUtea 155 



elegans 155 



Holiaoma 34, 106 



Helonix thallua 50 



Hemiaster 96 



elegana 355 



? bumpbreysanua IS, 96 



Hemicystites 78 



(Cyataater) grannlatua 78 



stellatus 78 



Hemifusua borni 221 



Hemipronitea ... 31, 56, 72, 78, 85, 89, 108, 109, 131, 177 

 chemungenaia var. arctoatri- 



ata 108 



crassus 31, 72, 85, 177 



crenistria 109, 131 



aubplanus 56 



Hemitrypa ? 226 



Hercoglossa 104 



Heteractis ducloaii 220 



Heteroceraa 93, 104, 261, 265 



? angulatum 49, 104 



cheyennensia 49, 104 



? cocbleatum 1 04 



cooperi 03 



? nebraacense 104, 265 



newtoni 361, 265 



oweni 49 



tortum 49, 104 



? umbilicatum 104 



Heterocrinus 37, 55, 77 



(Anomalocrinus) incurvus 37 



craasua 91 



conatrictus 77 



exilia 77 



exiguus 68 



heterodactylus 77 



(locrLnua) aubcraaaua 77 



juvenis 77 



laxus 77 



simplex 77 



subcraasus 37, 55,68 



Heteromyaria *. 97, 263, 267 



Hettaugia 262 



americana 76 



