Index to OenerUn 



197 



INDEX TO GENERA. 



Aforia 138, 139 

 Agelacrinus 73 

 Agriolimax 102, 105 

 Amblyacrum 153, 154 

 ADcistrosyriox 138 

 Antiplanes 129, 138, 139 

 Archatocidaris 7, 11, 19, 45-68, 70, 



71 

 Asthenotoma 148, 149 



Bathytoma 138, 147, 148, 151 

 Bela 160, 164 

 Bellardiella 165 

 Blfldaria 101, 102, 104 

 BorsoDia 158, 161 

 Bothriocidaris 9, 10, 14, 15 

 Baccinum 164 



Candelabrum 138 



Chauventia 164 



Cidaris 52, 55, 59, 61, 62, 67-71 



Cidarites 52, 55, 63, 64 



Clathorella 160, 165 



Clavatula 129, 152 



Clavus 159, 160 



Cilnura 138, 139 



Cochlespira 133, 138, 139, 143, 144 



Cochlespirella 138, 144 



Cochlespiropsis d. gen. 138, 143, 



144 

 Cochlicopa 101-103 

 Cordiera 158, 161 

 Crasslspira 159 

 Cymatosyrinx 159 

 Cystocidarls 13 

 Cythara 165, 166 



Daphoella 165, 166 

 Discocystis 11, 73 

 Dolichotoma 147 

 Donovania 124, 163, 164 

 Drillia 144, 153, 158, 169 



Echinocrinus 31, 46, 62, 53, 55, 58-* 



63, 69, 70 

 Echiuocysiis 9, 10, 12-14 

 Echinodiscus 11, 73, 74 

 Echinus 59, 71 

 Endiatoma 149 

 Eocidaris 7, 11, 55, 67-72 

 Eoclatburella 160 

 Eodrillla n. gen. 159 

 Eopleurotoma 127, 158 

 Eosurculan. gen. 138, 145-147 

 Eotiaris 11, 74 

 Epalxis 158 

 Euchellodon 138-140 

 Eucithara 166 



Euclathureila n. gen. 166, 167 

 Euconulus 101, 102, 105 

 Eucyclotoma 165 



Florestina 173, 174 

 Folinaea 164 



Fusitoma n. gen. 161, 163 

 Fasas 156, 161, 163 



Genmula 127, 133-137, 139, 144, 151 



Genota 129 



Glyptotoma n. gen. 138-141, 165 



Halia 123 



Helenella n. gen. 167, 168 

 Helicodiscus 102, 104 

 Hemipleurotoma 127, 133 

 Hemisurcula n. gen. 150 

 Homotoechus 18, 19 

 Hybochinus 24, 26 



Eoninckocidaris 11, 74 



Lacbesis 124, 163, 164 

 Lampsilis 103 

 Lepidechinus 9, 11, 20-22 

 Lepidesthes 11, 24-27 



