SYNOPTICAL LIST. 



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REMARKS. 



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39 



28 

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 40 

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52 



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Chemnitzia senistriata, S.Wood 

 — internodula, S. Wood, 1 

 var. ligata. J 

 Odostomia derivata, S. Wood... 

 Eulima Hebe, Semper 



Derivative. 



Derivative ? 



In the middle glacial of Lound. 

 r Doubtful whether from the Cor. 

 ■i Crag or from the Red of 

 1. Butley, &c. 



A very doubtful species. 



Derivative ? 



r Rackheath ; Southwold ; and, 

 \ according to Mr. Reid, Runton. 



Derivative ? 

 Derivative. 



Derivative in Red Crag, 

 Aldeby. 



fBelaugh and 'Weybourne; also, 

 •< according to Mr. C. Reid, from 

 [_ Runton. 



("A specimen from the March 

 ■j gravel in the Cambridge Mu- 

 L seum. 

 Several specimens from Aldeby. 



Perfect from Bekugh. 



— subula, D'OrS 



— 'Sa.vLmsmui? vonKonen... 



— vohMsivi, A. Bell 



Rissoa parva ? Da Costa 



— costulata. Alder 



— proxima. Alder 



Assiminea Grayana, Leacli 



Hydrobia obtusa, Sandberger... 



— ulvcSfVenn 



Amaura hesterna, S. Wood 



Natica (Amauropsis) Japo- "1 

 nica ? A. Adams. J 



— triseriata ? Say 



— helicina var helicifor- "1 



mis, S. Wood J 



— Oroenlandica, Beck, "1 



var. declivis. J 

 Adeorbis ? naticoides, S. Wood 

 Melampus fusiformis, ATFoorf, "1 

 var. elongatus. J 



— pi/ramidalis, J. Sow 



BIVALVIA. 



Ostrea ungulata, Nyst 



f — eduUSflimn 



Mytilus edulis, var. ungulatus. . . 



— — var. galloprovincialis 

 Pectunculus pilosus, var. in- " 



subricus, Broc. ' 



— var. nummarius, Broc. ... 



Nucula turgens, iS. Wood 



Luciua crassidens, S. Wood ... 

 Lucinopsis Lajonkairii,TajT., ' 



var. subobliqua. 

 Chama gryplioides, Linn., 1 



var. grypbina. J 



Cardita cordis, Phil 



Cardium Islandicum? Linn. ... 

 fAstarte sulcata, Da Costa 



Donax vittatus, Da Costa, ...1 

 {anathius. P. & H.) J 



Tellina lata, Gmel 



Abra prismatica, Mont 



Mactra ponderosa ? Stimpson... 



— arcuata, J. Sow 



Thracia papyracea, Poli 



Pholas intermedia, S. Wood. ... 



Tlie following species should be omitted from the Synoptical List altogether, viz. TropAon Norvegicus, see p. 7 ; Pleura- 

 toma violacea, see p. 20 j and Pholas dacfylus, see p. 49 j and from the Coralline and Red Crag columns of the list, Ostrea 

 edulis, see p. 42. 



