414 



Mr. J. Lycett on Fossil Shells from the 



Genus. 



181. Corbula 



Species. 



involuta 



200. 



Nucula . . . 

 Ceromya ... 



217. 



218. 

 219. 



220. 



221. 



Macrodon . 

 Goniomya . 



Arcomya ... 



Myopsis ... 



imbricata 



depressa 



cordiformis 



siliqua 



cordiforme 



Isevigatum 



cognatum 



punctato - stria- 

 tum. 



granulatum , 



semicostatum .. 

 Madrid! 



trapeziformis . . 



curvirostris 



Suevica 



picta 



excavata 



quadrata 



bullata 



Agassizii 



depressa 



sulcato-striata 



Menkei 



detrita 



formosa 



orbicularis . . . . 



lyrata 



despecta 



aspera ■ 



ovalis ■ 



laevigatus 



laevigata 



globosa 



delicatissima 

 donaciformis 

 sulcata ......... 



variabilis 



concentrica ... 



striata 



Hirsonensis , 

 literata 



oblonga 

 punctata 



Authority. 



Goldfuss, striata^ 

 Buckman. 



new sp 



Phillips 



Deshayes 



new sp 



new sp 



new sp 



Phil. Geol. York. , 

 new sp 





new sp 



new sp 



Cardium, D'Arch. ; 

 Cardium incer 

 turn, Phillips. 



Roemer 



new sp 



Goldfuss 



new sp 



Sow. Min. Con. 



new sp 



new sp 



new sp 



Goldfuss 



Roemer 



Unio, Dunker 

 Goldfuss 



new sp 



Sow. Min. Con. . 



Phillips 



Phillips 



new sp 



Phil. Geol. York. 



new sp 



Phil. Geol. York. 



Agassiz 



new sp 



new sp 



new sp 



Sow. Min. Con. ... 

 Isocardia, Sow. 



Min. Con. 

 Cardita, Sow. Min, 



Con. 

 CucuUsea, D'Arch. 

 Mva, Sow. Min. 



Con. 

 Sanguinolaria, 



Buckman. 

 Sanguinolaria, 



Buckman. 



= 5 CO 



■^ S j= 



.5 e 



