INDEX. 



PAGE 



Agassiz, Prof. 9, 33, 39, 87, 94, 182 



Anatomy of Limulus polyphemus 186 



„ " Digestive system" 201 

 „ " Generative system " 207 

 „ "Muscular system" 186 

 ,, " Nervous system" 192 



„ H Sanguiferous system " 203 



Armstrong, Mr. J 180 



Arrangement of the segments or body-rings... 4, 5 



Arthropleura , 163, 171 



Aymestry Rocks 93 



Baily, Mr. W. H...149, 182,237,238,240,242,246 



Banks, Mr. R 79,96,144 



Bellinurus, Genus 236 



Bellinurus arcuatus 241 



„ bellulus 239 



„ Kiltorkensis 238 



„ Kcenigianus 243 



„ regince 240 



Bibliography of the Merostomata 21 



Body-rings or segments, nomenclature of 4, 5 



Brodie, Rev. P. B 100, 161 



Buckland, Rev. Dr 237 



Carruthers, Mr. W 167,168 



Classification of the Merostomata 8 



Coal-measures, Fossil Limuli of 236 



Cyclus, Genus 248 



Cyclus bilobatus 249 



,, Harknessi 252 



„ Jonesianus 254 



„ radialis 253 



„ Rankini 254 



„ torosus 250 



„ Wrightii 251 



PAGE" 



Dana, Prof. J. D 3,9,230 



D'Eichwald, Dr 177 



Dekay, Dr. J. E 132 



De Koninck, Prof 248, 249, 253 



" Digestive system " of Limulus polyphemus... 201 

 Discovery of Fossils in the uppermost Silurian 



Rocks of Lesmahago 47 



Distribution of recent Limulus, geographical 232 



Divisions of the body of Crustaceans 3 



Dohrn, Dr. Anton 195, 216 



Embryology of Limulus polyphemus 213 



Etheridge, Mr. R., junr 199 



Eurypterida, Sub-order 9, 10,33 



" Eurypterus 1 (Arthropleura) ferox " 171 



„ 1 „ mammatus " . . . 163 



Eurypterus, Genus 132 



Eurypterus abbreviatus 148 



„ acuminatum 146 



„ Brewsteri 151 



„ Brodiei 161 



„ Hibernicus 148 



„ lanceolatus 140 



„ linearis 147 



„ obesus 160 



„ punctatus 153 



„ pygmcBus 144 



„ scorpioides 152 



„ Scouleri 133 



„ and Xiphosura compared 183,231 



Exuviation and replacement of lost appendages 2 ] 



Fragments of Eurypterus 168 



Fossil Limuli of the Coal-measures 236 



„ derivatives of Limulus ,. 232 



