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INDEX. 



Endoceras festinans .. 



PAGE 



.. 163 



proteiforme 



.. 124 



vaginatum 



.. 164 



Endogastric .. 



55,166 



Epidermids .. 



41 



Etheridge 



77 



Evolution, theory of 



240, 242 



Exogastric 



55,172 



Exosiphonites Edgellii 



.. 210 



External form of Nautilus 



21 



Eye of Nautilus 



14 



Folds at the base of the body-chamber 



Foot 



Forbes.. 



Geikie .. 



Genera, distribution of .. 



Gigantei 



Glossoceras 



Gomphoceras .. 



sequale . . 



amygdala 



cinctum .. 



corona .. 



crater 



ellipticum 



eta 



gratum .. 



liratum .. 



neglectum 



obovatum 



ovum 



pyriforme 



range of 



subfusiforme .. 



Goniatites nautilaceum 



Gonioceras 



Gracilia 



Griffiths 



Gyroceras 



Harkness 



Haswell 



Henderson .. 



Hercoceras 



Hicks.. 



Hood of Nautilus .. 



Sortolus 



giganteus 



ibex ■ .. 



Hughes 

 Huronia 



Imbricati 



Imperfecti 



Inflati .. .. .. 



Initial vacuity 



Internal marks on the shells 



Irregulares 



Jaws of Nautilus 

 Jukes .. 



40 



2 

 70 



76 

 .. 237 



50 

 .. 60, 61 

 58, 188 

 .. 188 

 .. 198 

 .. 197 

 .. 189 

 '.. 189 

 .. 190 

 .. 194 

 .. 195 



79 

 .. 197 

 .. 193 

 .. 190 

 190,192 



58 

 .. 186 

 .. 232 

 ..48,53 



50 



70 



65 



71, 75, 78 



75 



76 



62 



..77,78 



6 



66 



.. 223 



95, 228 



75 



51 

 .. 63, 64 



46, 50, 57, 186 

 27 

 40 



.. 46,65,215 



9 



74 



Kelly 



Koleoceras 



pseudospeciosum 



Labial processes of Nautilus 



Laives .. 



Lazvigati 



Lapworth 



Lineati 



Lituites 



anguiformis 



arietinus 



articulatus 



Biddulphii 



cornu-arietis .. 



giganteus 



Jiibemicus 



ibex 



planorbiformis 



Sowerbianus .. 



tortuosus 



undosus .. 



Longicones 

 Loxoceras 



Marr 



M'Coy 



Mediogastric 



Melia 



Mesoceras 



Mollusca defined 



Moniliferi 

 Morris .. 



Morton 



Munier-Chalmas on the siphuncle 

 Muscles of Nautilus 



Natural selection, theory of 

 Nautiloceras .. 

 Nautiloidea .. 



defined.. 



Nautilus 



■ anguiformis 



boliemicus 



Holtianus 



planorbiformis 



pompilius, anatomy of 



quadrans 



range of 



scoticus .. 



subdivisions of 



tyr annus 



undosus 



Nervous system of Nautilus 



Nicholson 



Normal lines 



Notlwceras 



Nummularia .. 



Oncoceras 

 Ophidioceras .. 



articulatum 



geometricum 



PAGE 



74 



48 



.. 142, 



7 

 51, 138 

 ..63,64 



77 

 . 50,54,117 

 .. 65, 66 

 .. 213 

 .. 227 

 183, 230 

 .. 210 

 .. 217 

 .. 223 

 .. 213 

 95, 228 

 .. 213 

 .. 217 

 .. 221 

 .. 226 

 ..51,81 



48 



78 

 . 70, 71, 72 



56, 182 



48 



58 



1 



..63,64 

 73 



..75,76 

 43 

 10 



.. 241 



65 



79 



44 



62 



.. 213 



.. 210 



.. 211 



.. 213 



5 



.. 212 



64 



.. 215 



..63,64 



.. 210 



.. 226 



..10,13 



75, 76, 77, 78 



43 



.. 62, 64 



50 



57 



67 



.. 230 



.. 231 



