FOUND NEAR MACCLESFIELD. 



59 



The two groups have probably come from different beds, 

 the first mentioned being from a newer deposit. 



References : — a,, abundant ; c, common ; f, frequent ; r, 

 rare ; and v. r, very rare. J), some specimens probably 

 spurious. 



As some of the species are of peculiar interest, and iden- 

 tified from small fragments only, it may be worth while to 

 state that none have been named except from remains 

 showing undoubted and distinctive characteristics ^. 





Species. 



Frequency 



Eemarks. 



2 



§3 

 1 







O 











!>-. 



o- 





I. 



Pholas erispata, Linn. ... 



T. r. 







2, 



Candida, Linn 





T. r. 



Two questionable lunbonal 

 fragments, D. 



3- 



Mya truncata, Li7in 



f. 



r. 



Hinge and other fragments. 



t4- 



arenaria, Linn 



V. r. 





One characteristic umbonal 



5- 



Psammobia ferroensis, 







and hinge-fragment. 





Chemn 



f. 





Many fragments, all very 

 much worn and remark- 



















ably thick. 



6. 



Donax anatinus, Lam. ... 



V. r. 





One fragment, D. 



7- 



Telliaa solidula, Pult. . . . 



c. 



f." 



Whole valves and fragments. 

 Many very D. 



8. 



Mactra solida, Linn. ... 



r. 



r. 



Valves and fragments. 



9- 



Lutraria elliptica, Lam. 



V. r. 





Characteristic hinge-frag- 

 ments. 



lO. 



Cytherea chione, Linn.... 



f. 





Umbonal portions & hinges 

 of several individuals ; 

 also lateral fragments. 



II. 



Yenus striatula, Donovan 



{::. 



V. r. 



Fragments. 

 Valves, D. 



12. 



Artemis lineta, Pult ... 



r. 





Hrage-fragments. 



13- 



Cyprina islandica, Linn. 



c. 





Hinge-fragments andothers, 

 small and all much worn. 



14- 



Astarte elliptica, Brown. 



r. 





Fragments. 



IS- 



ai'ctica, (rray 



c. 





Fragments. 



i6. 



Cardium echinatum, 



Y- 





Fragments. 





Linn 



r. 



Whole valves, D. 





* While Mr. J. Gwyn JefEreys's valuable manual is still incomplete, it 

 appears most convenient to follow the nomenclature of Messrs. Forbes and 

 Hanley's ' British Mollusca.' 



t Corbula nucleus, Linn., has also occurred (older v. r.). 



