326 



PEOCEEDINGS OF THE GEOLOGICAL SOCIETY, 



Table XIX. {continued). 



Genera and Species. 



Lingula obtusa 



ovata 



parallela 



plumbea 



Ramsayi 



striata 



tenuigranulata 

 Obolus Davidsoni 



transversus 

 Orthis Actonise 



sequivalvis 



alata 



alternata . . , 



biforata ... 



biloba 



Boucbardii 



calligramma 



confinisf ... 



costata 



crispa 



Davidsoni 



elegantula 



var. orbicularis 



fallaxf ... 



flabeUulum 



Hirnantensis 



hybrida . . . 



insnlaris ... 



intercostataf 



interplicataf 



lata 



Lewisii . . . 



lunata 



porcata . . . 



productoidesf 



radians . . . 



remota 



reversa 



rustica 



sagittifera 



semicircularis 



simplex . . . 



spiriferoides 



striatula ... 



testudinaria 



triangularis 



tricenaria t 



OQ 



GQ 



02 



6 



GQ 



9 10 





O 



t-l 

 ai 

 O 



^ 



11 





