r38 NEW YORK STATE MUSEUM 



LOWEE EOCENE 



1 Astarte rugata Sow. Alum bay. 



This, according? to Newton, is A. ruga t a var. s u bru gat a WoocL 



2 Crjptodon angulatum Sow. London. 



Not given at all . 



3 Corbiila pisum Sow. 



Not recorded from Alum bay but given Lower Eocene elsewhere. 



4 Teredo antenautae Sow. 



Not given from Whetstone. 



5 Teredina personata {Lamarck) 



Not given from Chapham. 



6 Stenothyra parkinsoni Morris 



Is given Woolwick beds. 



MIDDLE EOCENE 



7 Cyrena obovata Sow. 



Not recorded from Middle Eocene. 



8 Neritina concava Sow. 



Eeported Oligocene only. 



9 Planorbis oligyratns Edw. 



Oligocene, not Middle Eocene, no locality on specimen. 



UPPER EOCENE 



10 Axinaea deleta [Solander) 



Not reported from Hordwell. 



11 Nucula dixoni Wood 



Given only Middle Eocene. 



12 Protoeardinm semigranulatum Sow. 



Considered by Newton Lower Eocene only. 



13 Meretrix (Cytberea) obliqua (Desk.) 



Not reported from Upper Eocene. As this determination seems correct 

 there is probably some mistake about the locality. 



14 Fsammotaea compressa Sow. 



Middle Eocene only. 



15 Potaniides ventricosus Sow. 



Not recorded from Bagshot. 



16 Neritina glandulata Sandherger 



Not recorded at all. 



17 Planorbis euompbalus Sow. 



Reported Oligocene only. 



