TABLE OF CONTENTS. 



No. Page 



27 Purple-Tipped Acorn 55 



28 Porous Acorn 56 



29 Wart-Shaped Acorn 57 



30 Norwegian Acorn 58 



31 Carious Acorn 



32 Mitre Barnacle 59 



33 Cornucopia Banacle 60 



34 Pen-Knife Barnacle 61 



35 Bladder Barnacle 62 



36 Striated Barnacle 64 



37 Duck Barnacle 65 



38 Downy Barnacle 67 



39 Toothed Barnacle 



40 Furrowed Barnacle 68 



41 Ribbon Barnacle 69 



42 Membranous Barnacle 70 



43 Eared Barnacle 



No. PHOLAS. Page 73 



1 Prickly Piercer 77 



2 Indian Piercer 78 



3 White Piercer 79 



4 Ribbed Piercer 80 



5 Curled Piercer 81 



6 Small Pierce-Stone 82 



7 Striated Piercer 83 



8 Hooked Piercer 84 



9 Hart-Shaped Piercer 85 



10 Chili Piercer 



11 Gaping Piercer 



12 Teredo Piercer 86 



No. MYA. Page 87 



1 Abrupt Gaper 90 



2 Sand Gaper 91 



3 Convex Gaper 92 



4 Sloping Gaper 93 



5 Spoon-Hinge Gaper 94 



6 Duck Gaper 



7 Globular Gaper 95 



8 Arctic Gaper 



9 Toothless Gaper 96 



10 Pitchy Gaper 



1 1 Nicobar Gaper 97 



12 Beaked Gaper 



No. Page 



13 Norway Gaper 98 



14 Membranous Gaper 



15 Deformed Gaper 



16 Double-Toothed Gaper 99 



17 Decussated Gaper 



18 Purple Gaper 100 



19 Rusty Gaper 



20 Glossy Gaper 101 



21 Prismatic Gaper 



22 Substriated Gaper 102 



23 Dubious Gaper 



24 White Norway Gaper 103 



25 Dutch Gaper 



26 Painters Gaper 104 



27 Qval Gaper 105 



28 Thick Gaper 106 



29 Knotted Gaper 



30 Pearl Gaper 107 



31 Wrinkled Gaper 108 



32 Radiated Gaper 109 



33 Rough Gaper 



34 Knobbed Gaper 110 



35 Spurious Gaper ... 



36 Angular Gaper . » 



37 Roundish Gaper Ill 



38 Variable Gaper 



39 Lipped Gaper ^.... 112 



40 Unequal-Valved Gaper .... 113 



41 Great Gaper 114 



No. SOLEN. Page 115 



1 Pod Razor 118 



2 Carmarthenshire Razor .... 119 



3 Sheath Razor 



4 Truncated Solen 121 



5. Slender Razor 



6 Sword Razor 122 



7 Transparent Razor 123 



8 Peascod Razor 124 



9 Kidney Razor 125 



10 Antiquated Razor 



11 Brittle Razor 126 



12 Strigilated Razor 127 



13 Duck-Bill Razor 128 



14 Rayed Razor 



