263 



Page. 



2b". Pleurotomaria tumida 87 



27. dubia 87 



28. 29. gemmulifra 87 



30, 34. monilifera 87 



31. conccntrica 87 



32. conica 87 



33. limbata 87 



35. biserrata 88 



36. tornatilis 88 



37. squamula 88 



38, 42. Cirriformis 88 



39. excavata 88 



40. fusifonnis 88 



41. serrilimba 88 



Plate XLI. 



1 , 2. Solarium discoideum 78 



3, 4. canaliculatuiu 78 



5, 6. conoideum 78 



7, 8. Sowerbyii 78 



9, 21. Cirrua nodosus 80 



10, 11. Solarium plicatum 78 



12,13. patiUiuu 78 



14. tabulatum 78 



15. callx 78 



1 6. Cirrus pentagonalis 80 



1 7. cingalatus 80 



18. spiralis 80 



19. Leachii 80 



20. plicatus 80 



22. pileopsodcus 80 



23, 25. acutus 80 



24. turbinoides 80 



26,27. rotundatus 80 



28. tabulatus 80 



29.30. depressus 81 



31, 33. Pleurotomaria perspectiva 81 



32. Cirrus carinat us 81 



Plate XLII. 



1. Scalaria frondosa 82 



2. foliacca 82 



3, 4. reticulata 83 



5, 6. similis 83 



7, 8. intcrrupta 83 



9, 10. subulata 83 



11, 12. acuta 83 



1 3. undoso 83 



14, I .i. minuta 83 



16,17. semicostata 83 



18. plicata 83 



19. mutica 83 



20. 21, 22. Eaorophalus coronatus 82 



23. calyx 81 



24,25. funatus 81 



26,27. angulatus 81 



28,29. pentanguIarLs 81 



30.31. catiUus 81 



32, 33. discors 82 



Pack. 



34, 35. Kuomphalus rugosus 82 



36. cristatus 82 



37, 38. nodosus 82 



39. bifrons 82 



Plate XLIII. 



1. Vcrmetus Bognoricnsis 84 



2. polygonalis 84 



4, 5. tumidus 84 



6, 7, 8. Tomatella acutus 84 



9,10. NoiD 84 



11,12. cuspidatus 85 



1 3. retusus 85 



14,15. striatus 



16, 17. Sigaretus caualiculatus 88 



18, 19. Natica sigaratina 89 



20,21. cirriformis S9 



22, 23. patula 89 



24. discrepans 89 



25. cincta 89 



26. 27. ampliata 89 



28, 29. similis 89 



30,31. glaucinoides 99 



32. plicistria 89 



33,41. adducta 89 



34. cUiptica 90 



36, 37. hemiclausa 90 



38, 39. lirata 90 



40. tabulata 90 



42, 43. tumidula 90 



44. elongata 90 



45. planispira 90 



46. variata 90 



47. 48. striata 90 



49, 50. depressa 90 



Plate XLIV. 



1, 2. Ncrita costata 91 



3,4. Iffivigata 91 



5,6,7. minuta 91 



8,9. aperta 91 



10,11. globosa 91 



1 2, 1 3, 1 4. Pileolus plicatus" 92 



15,16,17. tens 92 



18, 19. Neritina uniplicata 92 



20, 2 1 . concava 92 



22, 23. Ampullaria patula 93 



24, 25. Ncrita spirata 91 



26,27. sinuosa 92 



28. Ampullaria nobilis 93 



29,30. Hclicoidcs 93 



31, .S2. ambulacrum 93 



33,34. acuta 93 



35, 36. Sigaratina 93 



Plate XLT. 



1 . Paludina ooncinna 93 



2, 3, 9. Icnta 94 



4, 5. cxtcnsa 94 



Page. 



Paludina Scdgwickii 95 



8. suboperta 94 



11. carinifcra 94 



1 3. fluviorum 94 



Id. elongata 94 



1 7. Mclanopsis subulata 95 



1 9. carinata 94 



2 1 . fusifonnis 95 



23. Dcptfoidensis 95 



25. brevis 94 



Mclania sulculosa 95 



28. truncata 95 



30. minima OS 



32. lincata 96 



Hcddingtonensis 96 



rittata 99 



striata 96 



37, 38. fasciata 96 



40,41. costata 96 



tumida 96 



44. constricta 96 



rugifcra 96 



Plate XLVI. 



2. Lymnaea pyramidalis 97 



4. maxima 97 



6, 7. minima 97 



9. longiscatus 97 



II. fusiformis 97 



1 3. Planorbis obtusus 97 



1 5. Vermetus radiatus 84 



1 7. Lymnaea columnaris 97 



19,20. Planorbis liemistoma 97 



22. cylindricus 97 



24. euompbalus 97 



Crassidorsa equalis 98 



27. Planorbis lens 97 



Auricula SedgH-ickii 88 



obsoleta 98 



31. Bulimus costellatus 99 



33. pjTamidalis 98 



35. Auricula vcntricosa 96 



37. Bulimus cllipticus 99 



39. Auricula Buccinea 98 



4 1 . simnlata 99 



43. discrepans 99 



45. incrassata 98 



47. turgida 98 



Plate XLVII. 



1 , 2. Cochlicarina expansa 90 



3, 4. Helicina solaroidcs 99 



5,6. polita 100 



7, 8. comprcssa 1 00 



9, 10. Helix Gentii 100 



11, 12. Bulla convoluta 100 



13,14. clliptica 100 



15,16. acuminata 101 



17,18. constricta 101 



6. 



7. 

 10, 

 13, 

 14. 

 16, 

 18, 

 20, 

 22, 

 24, 

 26. 

 27, 

 29, 

 31, 

 33. 

 34. 

 35. 

 36, 

 39, 

 42. 

 43, 

 45. 



1, 

 3, 



5, 



8, 



10, 



12, 



■4, 



16, 



18, 



21, 



[ -3, 



' 25. 



I 26, 



I 28. 



29. 



i 30, 



! 32, 



i 34, 



36, 



38, 



, 40, 



,42, 



44, 



I 46, 



