270 



Page. 



84, 85. Nucula oblongoides '88 



86,87. semi-striata ^^^ 



88,89. Trigonula '88 



Plate LXXVII. 



1 Pectimculus brevirostris 189 



189 



189 



2 3 4 minimus 



-"J •'j ^* 



5. pilosus 



6,7,8. oblongus '"S 



9. obliquus '89 



JO. sublaevis '89 



1 ] . umbonatus '89 



12. Area carinata 



191 



Plate LXXIX. 



Pagi;. 



1 . Axinus rotundatus 195 



2,3. 



4. 

 5,6. 



8. 



9. 



10,11. 

 12. 



1 3. Pectunculus delectus 189 



14. Plumsteadiensis 189 



15. Arcatumida l^'l 



16. Branderil l^^ 



1 7. appendiculata ' "" 



18. cancellata l^" 



19. duplicata '"1 



20. Pectunculus decussata 189 



21 . Cucullsea eontracta 193 



22. rudis 193 



23. Pectunculus scalaris 139 



24. Area depressa '91 



25. Cucullsea oblonga 193 



26. Area rotundata 191 



27. Eastnori 190 



28. papulosa '91 



29. pulchra 190 



30. quadrisuleata '90 



31, .32. costata '91 



33. subacuta 191 



34. eloiigata '91 



35. dubia 



36. semula 191 



37. 38. Cucullffia minuta 193 



39. crassatina 193 



40. fibrosa 193 



41. carinata 192 



Plate LXXVIII. 

 1, 2. CucuUiea glabra 192 



minimus ' 9 ^ 



latus 194 



obscurus 194 



ditto (young) 1 9^ 



dubius 1 *^4 



undatus '95 



pusillus 1 95 



195 



3. oviforma 193 



4. ovata '92 



5. pectinata 193 



6. triangularis 193 



7. costellata 193 



«, 9. antiqua 1 92 



1 0. formosa 



11,12. Paeliymya gigas 1 95 



13. CucuUsea reticulata 193 



14,16. cancellata 193 



15. Cawdori 192 



1 7. cyllndrica 1 94 



18. coiicinna 194 



19. elongata 193 



20. imperialis 194 



parvus 



13, 14. Megalodon cueullatus 196 



1 5. Isocardia tumida ' 9 ' 



1 6. rhomboidalis 19/ 



1 7. Axinus angulatus 19o 



18,19. Isocardia rostrata 196 



20 21. Hippopodium ponderosum 195 



22, 23. Isocardia sulcata '96 



24^25. angulata 197 



26 27. tener 196 



28 29. conccntrica '96 



30, 31. Cardiomorpha oblonga '97 



Plate LXXX. 



1 . Cardium Gentianum 199 



2, 3. Isocardia minima 196 



4. striata 1 96 



5. Cor 196 



6. axiniformis '9/ 



7. abrupta '96 



8,9. Pholadomya Margaritacea 231 



10. Spbsera corrugata 19' 



1 1 . Isocardia triangularis '96 



12. similis '96 



13. 14. Opis similis 197 



15,16. lunulata '97 



1 7. Isocardia nitida ' 9< 



Plate LXXXI. 



1,2. Cj-pricardia Cymbaeformis 198 



3. rliombca '98 



4. undata '98 



5 6. amygdalina '98 



7. deltoidea 199 



8. Cardiomorpha oblonga '97 



9. Cj-prieardia Solenoides '98 



10. glabrum '98 



1 1 . pectenifera 1 98 



12. retusa '98 



13. tricostata ^^^ 



Pagi. 



25, 26. Cardium truneatum ■ • 200 



27. striatuluni 200 



Plate LXXXII. 



1. Cardium gibberulum 200 



2. 

 3. 



4, 16. 

 5. 



6,7. 

 8. 



14. inipressa '98 



15. Edmondia unioniformis 198 



1 6. Cardium porulosum -"0 



17. 

 18. 



turgidum 200 



Hillanum 199 



edule 200 



incertum 20 1 



nitens 199 



angustatum 199 



9. semistriatum 20 1 



10. Pleurorhynchus longipennis. 202 



11. armatus 201 



12. Cardium semiglabratum 20 1 



1 3. edulinum '99 



14,15. Pleurorhynclius Hibemicus 201 



17. Pleurorliyncbus minax 202 



18,19. trigonalis 202 



20. Cardium eitrinoideum 200 



2 1 . semigranulatnm 200 



22, 23. dissimile 200 



24, 25. Pleurorliyncbus aliformis 20 1 



26. Cardium lobatum 200 



27. cognatum 201 



28. Isevigatum 201 



29. elongatum 201 



30. Groenlandicuni 201 



31. Cardiola fibrosa 202 



32. intemipta 202 



Plate LXXXIII. 

 1 . Pullastra Tirginea 204 



2. 



3,4 



5. 



6. 



7. 



aculeatum -f 



globosum -00 



1 9. proboscideum 199 



20. Parkinsoni 199 



2 1 . striatum '99 



22. Plumsteadiense 199 



23. echinatum 200 



24. acutangulum 200 



peregrina 203 



parallela 205 



oblita 204 



decussata 204 



laevis 203 



complanata 204 



Venus elliptica 205 



antiqua , 



204 



Pullastra recondita 204 



elliptica 204 



Irus 204 



Venus ovata 205 



fasciata 205 



Psammobia rigida 218 



Anomia semistriata '44 



1 8. Avicula decepta '6'' 



1 9, 20. Jleadia 16" 



2 1 , 22. Megalodon cariuatus 176 



23. Venericardia plauicosta -02 



24 scalaris 202 



25. tenuicosta 203 



28. oblonga 203 



27. orbicularis 203 



28. Cyrena Cycladiformis 208 



29. Venericardia Chamaeformis 203 



30,31. globosa 203 



