146 



INDEX. 



Guard polypites 

 Gymnoblastea . . 

 Gynmolfemata .. 



Pa f e 



32 

 91, 105 



Halcyonellea .. .. 106 



Haleciidse .. .. 63 



Halecium .. .. 24 



Halecium halecinum . . 63 



Halecium Beanii . . 66 



Halidrys siliquosa . . 76 



Harebell .. .. 10 



Hastings Museum . . 108 



Hermit Crab . . . . 41, 85 



Hinge-teeth .. .. Ill 



Hollow connexion . . 12 



Holobranchia . . . . 93, 103 



Hybodus .. .. 137 



Hydra .. .. 8 



Hydra vulgaris .. .. 38 



Hydracorallinae . . . . 32 



Hydractinia . . . . 29, 85 



Hydractiniidse .. .. 39 



Hydractinia echinata . . 39, 42, 86 



Hydrallmania .. . . 48, 87 



Hydrallmania faleata . . 73 



Hydrida .. .. 32 



Hydroida . . . . 32, 35 



Hydroids .. .. 32 

 Hydroids and Polyzoa compared 30 

 Hydroids compared with Coral 



polyps .. .. 29 

 Hydroids compared with Sea- 

 anemones . . 29 

 Hydroids compared with Sponges 27 

 Hydromedusee .. .. 32 

 Hydrozoa .. .. 32 



Iguanodon 



Inarticulata 



Indentation 



Infusoria 



Interfilamentary junctions 



Interlamellar junctions 



Introduction 



Iron-clay-stone .. 



Ironstone 



isopleura 



135, 136 



106 



110 



43,85 



118, 119 

 119 

 xx. 

 134 

 136 

 113 



Jaws 



Jelly-fish 



Jelly-fish hatches eggs 



Junctions 



Lafoea dumosa , . 

 Lafoea parvula . . 

 Lafoea pocillum 

 Laf oeidge 

 Lamellibranch, A 

 Lamellibranchiata 

 Laminarian stem 

 Larva, an Amoeba 

 Larva, a Medusa 

 Larva, a Planule 

 Larva, a polypite 

 Laterals 

 Lateral teeth 

 Lenses 



Leptoinedusae 

 Leptosporangiatse 

 Ligament 

 Lithocysts 

 Lobster 

 Lovenella clausa 

 Loxosoma 



Page 

 115 



21,22 



22 



117 



62 

 62 

 62 

 62 

 119 



115, 119 



71 



27 



27 



27 



27 



116 



111 



116 



33 



141 



109, 111 



20, f.n. 55 



39, 86 



47, 60 



97, 98, 103 



Mantle . . 116 



Mantle-cavity . . 119 



Mantle-fold . . 113 



Margins . . 109 



Medusa . . 6 



Muscles . . 7 



Mesenteries . . 30 



Mesoderm . . 6, 7 

 Mesoglaea . . 6, 37 



Mesozoic plants . . 141 



Methods of dispersal . . 23 

 Modification of reproductive 



bud .. .. 25 



Modification of select bud 24 

 Modification of select polypite 15 

 Mollusca . . . . 104, 113 



Muscles .. .. 95 



Muscle of attachment . . 116 



Muscle impression . . 110 



