DESCRIPTION OF THE PLATES. 



143 



Plate XXXVI. 



I, 3, 19, 20. Artemis exoleta. 92 

 2,4. Artemis lincta 92 



5, 7, 8. Pullastra aurea 89 



6. Pullastra virginea 89 



9. Pullastra Irus 89 



10. Venus fasciata 91 



11. Venus Gallina 89 



12. Venus sulcata 90 



13. Venus costata 90 



14. Venus rugosa 90 



15,16. Myrtea spinifera 98 



Id.* Veuus casina 90 



16.* Venus verrucosa 90 



17,18. Lassea rubra 93 



Plate XXXVII. 



1. Cyprina vulgaris 93 



2. Cytherea Chione 91 



3. Cytherea minima 92 



4. Cytherea minuta 



5,6. Pullastra decussata 88 



7. Pullastra vulgaris 89 



8,9. Pullastra virginea 89 



10. Pullastra perforans 89 



II. Veuus ovata 91 



12,13. Venus reflexa 91 



14,15. Venus laminosa 90 



Plate XXXVIII. 



1. Crassina Danmoniensis ... 95 



2. Crassina depressa 96 



3. Crassina elliptica 96 



4,5. Crassina compressa 96 



6, 7, 8. Crassina striata 96 



9. Crassina Scotica 95 



10. Crassina sulcata ... 



11. Cyprina vulgaris .., 



12. 13. Crassina ovata 



96 



Plate XXXIX. 



1,2. Lucina undata 98 



3. Lucina lactea 98 



4,5, 5,*6, 7. Cryptodon flexuo- 

 sus 99 



(5,* hinge; 6 and 7, var.) 



8, 9. Lucina radula 98 



10. Capsa complanata 97 



11. Donax trunculus 97 



12. Capsa castanea 97 



13. Donax ruber 97 



14. 15. Myrtea spinifera 98 



16, 17, 18. Cyclas rivicola ... 93 



17.* Modiola rhombea 78 



19. Cyclas cornea 93 



20. Cyclas lacustris 94 



21. Cyclas calyculata 94 



22. Pisidium obliquum 94 



23. Pisidium fontinale 94 



24. Pisidium obtusale 94 



25. Pisidium appendiculata ... 95 



26. Pisidium nitidum 95 



27. Pisidium pusillum 95 



28. Pisidium cincreum 95 



29. Lucina leucoma 99 



30. 31. Psammobia tellinella... 102 



32. Psammobia Laskeyii 103 



33. Psammobia polygona 102 



34. Psammobia costulata 102 



35. Tellina similis 101 



Plate XL. 



1,2. Psammobia Ferroensis... 101 



3. Psammobia vespertiua 101 



4, 5, 6. Psammobia jugosa ... 101 



7. Lepton squamosum Ill 



8. Arcopagia crassa 99 



9. 10. Arcopagia ovata 99 



11. Lucina rotuudata 98 



12. Tellina depressa loo 



13. Tellina punicea 100 



14. Tellina solidula 101 



15. Tellina striata 100 



16. Tellina Donacina 101 



17. Tellina lineata 100 



18. Tellina Fabula 101 



19. Tellina tenuis 100 



20,21. Tellina elliptica 101 



22. Tellina pellucida 101 



23. Tellimya substriata 107 



24. Crassina corrugata 96 



25. Mactrina triangularis 108 



26,27. Myatella Moutagui ... Ill 



Plate XLI. 



1. Mactra glauca 107 



2. Mactra stultorum 107 



3,4. Mactra solida 108 



5. Mactra truncata 108 



6. Mactra elliptica 108 



7. Mactra subtruncata 108 



8. 9. Mactra dealbeta 107 



10. Mactra striata 108 



11. 12. Mactra triangulata, Fo- 



reign — 



Plate XLII. 



1. Ligula pratenuis 106 



2. Amphidesma tenue 105 



3. Amphidesma Boysii 105 



4. Amphidesma truncata 106 



5. Amphidesma prismatica ... 105 



6. Corbula rosea 105 



7,8,9. Corbula nucleus 105 



10,11. Tellimya lactea 106 



12,13. Tellimya tenuis 106 



14, 15. Tellimya suborbicularis 106 



16, 23, 24. Sphenia Swainsoni 104 



17, 18, 22. Sphenia Binghami. 104 



19. Tellimya elliptica 106 



•20,21. Tellimya glabra 107 



25, 26, 26.* Mactrina minutis- 



sima 108 



27. Anatina arctica — 



28. Thracia truncata 110 



29,30,31. Saxicava purpurea. 103 



32,33. Corbula ovata 105 



34,35. Modiola Ballii 132 



Plate XLIII. 



1. Lutraria Solenoidea 109 



2. 3. Lutraria elliptica 109 



4. Lutraria compressa 109 



Plate XLIV. 



1,2, 10. Magdala striata Ill 



3. Thracia convexa 110 



4. Thracia ovata 110 



5. Thracia declivis 109 



6. Thracia pubescens 110 



7. Thracia distorts 110 



8,9. Tellimya bidentata 107 



11, 12, 13, 14. Thracia brevi- 



rostra 110 



Plate XLV. 



1. Mya arenaria Ill 



2. Mya truncata Ill 



3. Sphenia decussata 104 



4. 5, 6, 7. Mytilus edulis 77 



(var. 4, subsaxatilis.) 



Plate XL VI. 



1. Panopsea Glycimeris 112 



2, 3, 4. Terebratula psittacea 68 



5. Anomia electrica 70 



6. Avicula Atlantica 74 



Plate XL VII. 



1. Hiatella minuta 103 



2,2. Solen vagina 112 



2.* Solen Ligula 112 



3,3.* Solen siliqua 112 



4. Solen pellucidus 113 



5, 12, 13. Pandora rostrata... 104 



6,7. Azor antiquatus 113 



8, 9, 9.* Solenocurtus Legu- 



men 113 



10, 10.* Solen Ensis 113 



14,16. Saxicava rugosa 103 



15. Hiatella oblonga 103 



Plate XLV1II. 



1, 2, 3, 4, 5. Pholas crispata. 114 



6, 7, 8, 9, 10. Pholas Candida 115 



11, 12. Pholas parva 115 



13, 14. Gastrochaena Pholadia. 116 



15, 16. Saxicava rugosa, var. . 103 

 17,18. Pholas sulcata 115 



Plate XLIX. 



1,2,3. Pholas dactylus 115 



4, 6, 7, 9. Pholas papyracea . 114 



5,8. Pholas striata 115 



10,11. Pholas lamellata 114 



12,13. Pholas tuberculata 115 



Plate L. 

 1, 2, 3, 4, 5, 6, 7. Teredo 



navalis 116 



(1 6, section of the lower end of 

 the tube ; 2, an entire tube, 

 with the bivalve seated on its 

 wider extremity; 3, 4, and 5, 

 different views of the bivalve; 

 6 and 7, different views of the 

 spoon-shaped appendage.) 

 8, 9, 10, II, 12, 13. Xylopha- 



ga dorsalis 117 



(11, 12, and 13, different views 

 of the bivalve.) 



14, 15. Teredo nana 116 



16. Teredo maleolus 116 



Plate LI. 



1. Pentelasmis anseriferus ... 119 



2. Pentelasmis fascicularis ... 120 



3. Pentelasmis radula 120 



4, 5, 6. Pentelasmis sulcatus . 119 



(5 and fi, var. 6.) 



7, 9, 10. Scalpel] um vulgare . 119 

 (7, var. a; 9, var. b; 10, var. c.) 



8. Scalpellum similium 119 



11, 12. Pollicipes cornucopia... 118 



(11, var. a; 12, var. i.) 

 13, 14, 1.3. Otion Blainvillii ... lis 

 (13, var. 1; 14 and 15, var. 2.) 

 16, 17, 18. Cineras vittatus ... 118 

 (16 and IS, var. a; 17, var. b.) 



Plate LII. 

 1, 2, 3, 4. Pentelasmis anati- 



ferus no 



5. Pentelasmis dentatus 119 



Plato LIII. 

 1, 2, 3, 22. Balanus Scoticus. 121 



(2 and 3, the operculum.) 

 4, 7, 8, 21. Balanus rugosus . 120 

 (7 and 8, the operculum; 21, an 

 elongated variety.) 

 5,6,13,20. Balanus punctatus 121 

 (5 and 6, the operculum ; 20, an 

 elongated variety.) 

 8,* 9,* 17. Balanus balanoides 120 



(8* and 9,* the operculum.) 

 9,10,11,12. Balanus Cranchii 121 



(11 and 12, the operculum.) 



14, 15, 16. Balanus spongicola. 121 



(14 and 15, the operculum.) 



23. Balanus communis 120 



24, 25, 26. Balanus Montagui . 121 



(26, the operculum.) 

 27, 28, 29. PyrgomaAnglica... 120 



(28, the operculum.) 

 30. Clitia verruca 122 



Plate LIV. 



1. Balanus communis 120 



2,3. Balanus costatus 120 



4,5. Balanus balanoides 120 



6, 13, 14. Balanus rugosus ... 120 

 (13 and 14, the operculum.) 



7, Balanus conoides 121 



8, 9, 10, 11, 12. Balanus can- 



didus 121 



(8, an elongated variety ; 1 1 and 

 12, the operculum.) 



Plate LV. 



1,5. Serpula triquetra 123 



2, 3. Serpula verrnicularis ... 123 

 4. Serpula contorta 122 



6. Serpula spiralis 122 



7. Serpula perversa 122 



8. Serpula serrulata 123 



9. 10. Serpula tubularia 122 



Plate LVI. 



1. Dentalium Gadus 117 



2. Dentalium octangulatum... 117 



3. Brochus glabrus 125 



4. 5. Dentalium labiatum ... 117 



6. Brochus hevis 125 



7. Dentalium eutalis 117 



8. Dentalium dentalis 117 



