482 PKOCEEDINGS OF THE GEOLOGICAL SOCIETY. Coktchifera (continued). <c ho si £ 159. II. Names of Species. Cardium decor- ticatwm. III. Synonyms and critical remarks, C. norvegicum, var., Spengler; Cor. Cr. 152. echinatum 105. 160. groBnland- icum. 159. t interrup- tion. ioo. nodosum. 8. Wood. J nodosum, Turton. 154. d nodosulum 158. fd — Parkinsoni 154. strigillife- rum. 1 ftfl 10U. VenUStltm 162. Chama grypho- ides. 198. Circe minima... 263. tCochlodesma complanatum. 275. Corbula com- planata. cl stl'lctt'El • • . 258. tenuis . . . 134. Cryptodon sin- uosum. Cultellus pellu- cidus. 196 Cyprina island- ica. 197 rustica ... 208 Cytherea rudis 146 fDiplodonta ? astartea. 145 dilatata... 144 rotundata J Donax politus 220 . Poli. 219 trunculus C. norvegicum, (C. oblongum). C. fasciatum, Montagu. C. Parkinsoni, jun. C. Nuttalii, Conrad. IV. Zones of depth. L-D Lt-L C L-D L-D L-C Geographical distribution. VI. Localities. C. norvegicum, var. rotunda. Cor. Cr Cytherea trigona Thracia praste mn&,Pulteney , var. G. Corbulomya C. gibba, Olivi (C. planulata) Solen pelluci- dus, Penn. Cor. Cr Gr. Venus (V. cy- cladiformis). D. trigonula, Bronn. D.rotundafa,var. Cor. Cr. (D. Woocli). Cor. Cr (D.vinacea)Cor. Cr. Lt-C L-D Lt-D Lt-D Lt-D L-C Lt-D "6" C-D L-C Lt-C Lt-L B S M W At BSMW A BSMWAt BSMWAt BSMW Am A M W BSMWAt BSMW BSMWAt BSAMWAt BSMW B S W Bt S_ Passim S B Bt SBt SAB Bt 8 SF W 5 6 VII. ■B bJD oO o VIII. Belgium. Passim P BrC Ad MW M At B M W At BMW BMW 8 W S W S w SWBt S B W Wd Bt W SB A F Bt S Wd SWBt S Bt 8 S Bt s w Ad T? Ad? E Ad Br N Ad Th Ad Ad Passim N Br T Th?