PEESTWICH CEAG-BEDS OF STrPFOLK AND NOEPOLK. 



489 



GrASTKOPODA {continued). 



^-§ 



OB S 



118 



120. 

 J 



J 



40. 



32. 



31. 

 J 



30. 

 29. 

 29. 



28. 



31& 



315. 



32. 



30. 

 J 

 315. 

 33. 

 J 



142. 

 141. 

 145. 



147. 

 146. 



142. 



145. 

 144. 

 148. 



143. 



11. 



Names of 

 Species. 



Littorina littorea 

 rudis, 



Mafon. 



(?)suboperta 



Mitra corni- 



CLila, L. 

 Menestlio al- 



bula, Fabr. 

 fMurex tortuo- 



sus. 

 Nassa conglo- 



bata. 



consociata 



Ciivieri, 



Payr. 



t elegans ... 



t granulata 



incrassata 



t labiosa . . . 



III. 



Synonyms and 

 critical remarks. 



L. littorea, var. 

 M. ebenus, Lam. 



IV. 



Zones 



of 

 depth. 



M. erinaceus, 



L., var. 

 Desmoulea ab- 



breviata, Ch. 

 N. elegans, var. 



prismatica 



t propinqua 



pygmtea, 



Lam. 



reticosa . . . 



Natica Alderi, 

 Forb. 



catena ... 



t catenoides 



f cirriformis 



clausa ... 



groenlan- 



dica, Beck. 



Gtuille- 



mini (?) 



helicoides 



hemielausa 



multipunc- 



tata. 

 varians . . . 



N. semistriata, 

 £rc. ; Cor. Or. 



f N. incrassata, 



[ var. 



Not N. prisma- 

 tica, £r., but 

 N. lima seu 

 limata, Ck.,= 

 N. scalarifor 

 mis, Kiener; 

 Cor. Cr. 



N-trivittataj/Say 



(B. elongatum) 



(N. Sowerbyi) 

 N. heros, Sayl 

 N. sordida, 

 Swainson. 

 N, affinis, Gm. 



N. catena, jun. 

 N. islandica, Gm. 



N. millepuncta- 

 ta. Lam., var. 



N. cirriformis, 

 var. ; Cor. Cr. 



Lt 

 Lt 



C 



C 



LI^C 



C-D 



C 



Lt-D 



C-D 



CD 



Lt-L 

 C 



C-D 



Lt-C 



L 

 L-D 



C-D 

 C-D 



C-D 



" c" 



V. 



Geographical 

 distribution. 



BS AW 



BS AW 



M At 



A 



B S M W At 



Africa 



MW 



W At 

 W 



B S M W At 

 M W 



MW 



Am 

 BSMW 



BSMW 



BSMW 



Am? 

 BM WAt 



BSAAt 

 BS A 



BS A 



VI. 



Localities. 



o 



p^ 



SBBt 



SWB 

 Wd 



W 



SWBt 



W 



s 



Bt 



WBt 



Passim 



SBtWd 



SBt 



SBt 



S 



SWBt 

 Bt 



Passim 

 SBt 



SBt 

 S W 

 S Wd 



SBt 

 SBt 



SBt 

 SW 

 WBt 



8 





Passim 

 BrT W 



Br 



Br 



VII. 



a 

 3 ^ 



so 

 o 



BrE 

 TE 



BrBlC 

 EBl 



BrCAd 

 Br TW 



Yarn 



BrE Ad 

 NBl 



VIII. 



Belgium 



o : 

 o ? * 



IX. 



o ? * 

 o * 



