INDEX TO THE GENERA. 



229 



Gangamopteris, 95 

 Genocidaris, 143 

 Gibbula, 164 

 GladioUtes, 9 

 Glandulina, 127 

 Glancouome, 44 

 Globigerina, 127 

 Glossopteris, 30, 96, 199 

 Goniatites, 89 

 Goniograptus, 200 

 Goniomya, 108 

 Grammatophora, 178 

 Grammysia, 79 

 Graphularia, 201 

 Graptolithus, 8 

 Gresslya, 108 

 Griffithides, 42 

 Gypidia, 20 



Haliotis, 164 

 Halmaturus, 182 

 Halonia, 32 

 Halysites, 12 

 Hapalotis, 198 

 Harmodites, 14 

 Harpes, 16 

 Hauerina, 128 

 Heliastrfea, 136 

 Helicograptus, 4 

 Helicotoma, 25 

 Heliolites, 12, 37 

 Helix, 178 

 Hemiaster, 140 

 Hemipatagus, 140 

 Hemithyris, 21 

 Hemitrypa, 45 

 Hettangia, 112 

 Hinnites, 154 

 Holaster, 140 

 Holopasa, 25 

 Homalonotus, 16 

 Homomya, 108 

 Hormotoma, 25 

 Horner a, 147 

 Hybodus, 118 

 Hydrosaurus, 178 

 Hymenocaris, 17 

 Hypocriuus, 40 

 Hypothyris, 21 

 Hypsiprymnus, 182 



Ichthyosaurus, 118 

 Idmonea, 147 

 lUasnus, 17 

 Illieites, 122 

 Illicium, 122 

 Infundibulum, 164 

 Inoceramus, 70, 109 

 Isis, 136 

 Isoodon, 186 



Jania, 34 



Lamna, 172 



Laurus, 122 

 Leda, 74, 109 

 Leiocidaris, 140 

 Lepidodendron, 31 

 Lepidotus, 118 

 Lepralia, 105, 148 

 Leptajna, 18, 19, 49 

 Leptagonia, 19, 22 

 Leptophleum, 31 

 Leptosiagon, 182 

 Liehas, 17 

 Lima, 109, 154 

 Limaria, 35 

 Limatula, 155 

 Limopsis, 155 

 Lingula, 49, 106 

 Liotia, 165 

 Lithostrotion, 37 

 Lithostrotion, 37 

 Littorina, 82 

 Lituites, 26 

 Lituola, 128 

 Liversidgia, 122 

 Loganograptus, 9 

 Lousdaleia, 37 

 Lophophyllum, 37 

 Lovenia, 110 

 Loxonema, 82 

 Lucina, 110 

 Lunella, 203 

 Lunulites, 148 

 Lyonsia, 155 

 Lysia7mssa, 108 



Macrocheilus, 83 

 Macrocypris, 144 

 Macrop'us, 183 

 Macrotis, 186 

 Mactra, 110 

 Mseonia, 71 

 Mceonia, 71, 72 

 Mangelia, 165 

 Maretia, 140, 141 

 Margarita, 165 

 Marginella, 165 

 Mastodon, 198 

 Megadesmus, 70, 74 

 Me'galania, 178 

 Megalaster, 141 

 Megalomus, 23 

 Megaphyton, 32 

 Megathyris, 105 

 Mehcerita, 148 

 Melina, 110 

 Membranipora, 148 

 Meristella, 20 

 Micraster, 105, 142 

 MitcheUia, 83 

 Mitra, 165 

 Modiola, 71, 110 

 Modiolopsis, 71 

 Monostychia, 138, 142 

 Monticulipora, 13 

 Murchisonia, 25, 84 



