PLATE LIII. 



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Page. 



Littorina rudis (Maton). Bramerton. (Harmer Collection) . . 653 



Ditto. Portland. (Harmer Collection) . . 653 



var. Isevis, Jeffreys. Recent. (Norwich Museum) .... 655 



ditto. Bramerton. (Harmer Collection) . . . 655 



var. jugosa (Montagu). Portland. (Harmer Collection) . . 656 



var. globosa. Jeffreys. Recent. (Harmer Collection) . . 656 



ditto. Bramerton. (Crowfoot Collection) . . . 656 



ditto. Bramerton. (Harmer Collection) ..... 656 



var. nigrolineata (Gray). Bramerton. (Harmer Collection) . . . 657 



var. rudissima (Bean). Recent. (Dautzenberg Collection) . 657 



ditto. Bramerton. (Harmer Collection) ..... 657 



var. gromlandica, Moller. Recent. Finmark. (Harmer Collection) . . 658 



ditto. Bramerton. (Harmer Collection) ..... 658 



Littorina Headleyi, A. Bell. Bridlington. (Headley Collection) . . . 665 



Littorina rudis, var. Reevei, nov. Thorpe, near Norwich. (Crowfoot Collection) 659 



Ditto, var. patula, Thorpe. Recent. (Holmes Collection) . . . 660 



var. tenebrosa (Montagu). Recent. (Norwich Museum | . . 6(50 



ditto. Butley. (Harmer Collection) ..... 660 



var. elata, Dautzenberg and Fischer. Recent. (Holmes Collection) . . 661 



var. similis, Jeffreys. Recent. (Cooke Collection) .... 659 



Littorina neritoides (Linne). Garvel Park. (Harmer Collection) . . 662 



Littorina palliata (Say). Garvel Park. (Harmer Collection) . . . 663 



Ditto. Butley. (Ipswich Museum) ...... 663 



Littorina gibbosa, Etheridge arid Bell. St. Erth. (British Must-urn) . 664 



Lacuna pallid ula (Da Costa). Selsey. (Harmer Collection) . . . 665 



Lacuna puteolus (Turton). Garvel Park. (Harmer Collection) . . 666 



Lacuna crassior (Montagu). March gravels. (Harmer Collection) . . 667 



Ditto. Recent. (Norwich Museum) ...... 667 



Ditto. March gravels. (Harmer Collection ) . . . 667 



Lacuna divarirata (Fabricius). Recent. (Norwich Museum I . 668 



Lacuna suboperta (J. Sowerby). St. Erth. (Harmer Collection) . . . 669 



Ditto. Little Oakley. (Harmer Collection) . . . .669 



Cithna minima, A. Bell. Selsey. (York Museum) . . 670 



Cithna incerta, A. Bell, MS. St. Erth. (British Museum ) . . .670 



Fossarus sulcatus (S. V. Wood). Coralline Crag — Sutton. (Harmer Collection) . 670 



Fossarus lineolatus (S. V. Wood). Coralline Crag— Sutton. (Harmer Collection) . 671 



Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 

 Ditto. 



Ditto. 

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 Ditto. 



