272 



Page. 



52. Psammobia laevigata 218 



53. florida 218 



54. vespertina 218 



55. Bolidula 217 



Plate XC. 



1,2,3. Petricola inflata 220 



4. laminosa 220 



5. ditto, variety 220 



6. 7. tevis 220 



8. Sanguinolaria lyrata 219 



9. Hollowaysii 219 



10, 21. Potomomya gregaria 223 



] 1. Sanguinolaria attenuata 219 



12. angiistata 219 



13. tumida 219 



14. maxima 210 



15. vetusta 219 



16. arcuata 219 



) 7. Saxicava rugosa 221 



IS. Sanguinolaria elliptica 220 



19. plicata 219 



20. compressa 219 



22. Crassatella plicata 225 



23, 24, 25. Pandora margaritacia 221 



26, 27. Agina purpura 22 1 



28. Sanguinolaria elegans 220 



29. gibbosa 220 



30. Anatina undulata 229 



31. Crassatella sulcata 225 



32. Montacuta glabra 225 



33. Sanguinolaria transversa 219 



34. 35. Tellimya suborbieularis 225 



36. Crassatella compressa 225 



37. Splienia Swainsoni ^ 221 



38. Sanguinolaria parvula 220 



39. 40. Potomomya plana 223 



4 1 . Sanguinolaria sulcata 220 



42. Corbula cardioides 223 



43. Sanguinolaria oblonga 219 



44. 45. Sphenia Binghami 221 



Plate XCI. 



1 , 2, 3. Corbula gallica 221 



4. curtansata 222 



5. depressa 223 



6. 7. longirostrum 22 1 



"i 9- umboualla 222 



' 0. Heunahii 223 



1 1 . Venus elliptica 205 



12. ficns 223 



13, 14. cuspidata 222 



1 5. striata 222 



Hi, 17, 18. revoluta 223 



1 9- globosa 222 



20. pisum 222 



21,22. striatula 222 



23, 24. elegans 223 



25. obscura 222 



26, 2", 2S. costata 223 



Page. 



29. Venus nitida 222 



30. complanata 222 



31. rotundata 222 



32,33. truncata 233 



34. alata 223 



35. 



36. punctum 223 



37. Amphidesma securiforme 224 



37,* 37.* Maetra angulata 226 



38. Corbula gigantea 222 



39. Amphidesma deltoidea 224 



40. Portlockii 224 



4 1. axiniformis 224 



42. Maetra striata 226 



43. subtruncata 326 



44. 45. Amphidesma earbonarium 224 



46. album 224 



47. prismaticum 224 



48. tenuistriatum 224 



49. recurvum 224 



50. Maetra glauca 226 



51. depressa , 226 



52. Maetra deaurata 226 



53. 57, 58. solida 226 



54. stultorum 226 



55. truncata 236 



56. arcuata 226 



Plate XCII. 



1, 2. Thetis major 295 



3. 4, 5. minor 225 



6, 7. Lutraria carinifera 257 



8, 9. striata 227 



10. gibbosa 227 



11. Mya laeviuscula 228 



12. Lutraria deeurtata 227 



1 3. Mya mandibula 238 



14. Lutraria elUptica 227 



15. primajva 227 



16. rotundata 227 



1 7. Donaciniformis 227 



18. Mya dilata 228 



1 9. Lutraria compressa 227 



20. Mya aequata 228 



21. phaseolina 238 



22. rotundata 228 



23. arenaria 228 



24, 25. ovalis 228 



26, 27 , 28, 29. Mya angustata 228 



30. Potomomya subangulata 224 



31. plana 223 



32. Lysianassa anguilifera 229 



33. literata 229 



34. scripta 229 



Plate XCIII. 



1 . Mya truncata 228 



2, 3. Thracea oblata 229 



4. Mya lata 238 



5. Thracia depressa 229 



Page. 



6. Mya calciformis 228 



7, 8, 9. Thracia dubia 229 



1 0. Solemya primfeva 230 



11, 12. Panopsea rotundata 230 



13. gibbosa 230 



14,15. intermedia 230 



16. elongata 230 



17,18,19. Norvegica 230 



20. Solemya ovalis 230 



21. Na!ra dispar 223 



22. Panopoea oblata 230 



Plate XCIV. 



1, 2. Pholas cylindrica 233 



3, 4, 5. compressa 233 



6, 7. Panopaea ovalis 230 



8, 19, 20. Pholas crispata 233 



9. Solen Parisiensis 231 



1 0. Panopasa plicata 230 



11, 12. Pholas dactylus 234 



13. Solen legumen 231 



14. siliqua 231 



15. pellagieus 23 1 



16. affinis 231 



17. Ensis 231 



18. vaginalis 231 



21. constricta 234 



22. reoondita 234 



23. 24. Candida 233 



25. prisca 233 



Plate XCV. 



1 . Pholas gigantea 234 



2. Pholadomya nana 232 



3. obsoleta 233 



4. ambigua 232 



5. compressa 232 



6. obtusa 231 



7. cuneata 232 



8. producta 231 



9. lyrata 232 



10. deltoidea 232 



1 1. Phillipsii 232 



12. simplex 233 



Plate XCVI. 



1. Pholadomya aeuticosta 233 



2. fidicula 232 



3. obliquata 233 



4. ovalis 232 



5. decussata 232 



6. Murchisoni 232 



7. aiqualis 233 



8. angustata 232 



9. 10, 1 1, 12. Fistulana ampuUaria 235 



13. Teredo navalis 235 



14. 15. Teredina personata 235 



1 6, 17, 18. Teredo amphisbaena 235 



19. Amphisbasna articulata 235 



20,21. Gastroehffina pholadia 234 



