430 EXPLANATION OF PLATES. 



35,86. Segmentiua (Planorbula) armigera, Say. "U.S., . lOY 



31. Ancylus concentricus, d'Orb. South America, . . 107 



38. Ancylus (Acroloxus) lacustris, Linn. Europe, . . lOT 



39. Latia neritoides. Gray. New Zealand, . . . 108 



40. Gundlachia ancjliformis, Pfr. Cuba, . . . 108 



41. Amphibola nux-avellana, Cheinn. New Zealand, . 109 



42. Amphibola (Ampullarina) fragilis, Quoy. New Zea- 



land, . . . . 109 



Plate 104. 



43. Aspergillum (Warnea) vaginiferum. Lam. Red Sea, 118 



44. Humphreya Strangei,A. Ad. New South Wales, . 118 



45. Clavagella (Bryopa) aperta, Sowb. Mediterranean Sea. 119 

 ,46. Roeellaria hians, Chemn. West Indies, . . . 120 

 41. Rocellaria (Spengleria) rostrata, Spengler. W. Indies, 120 

 :48. Teredo navalis, Linn. Tube removed. U. S., Europe, 120 

 49. Uperotis clava, Gmel. Tranquebar, .... 123 

 50-52. Kuphus arenarius, Linn. Philippines, . . . 123 

 53, 54- Teredina personata, Lam. Eocene ; Europe, . 123 

 55-57. Pholas costata, Linn, Atlantic coast of U. S., . 124 

 58,59. Dactylina dactylus, Linn. England, . . . 125 



60. Monothj'ra orientalis, Gmel. India, .... 125 



61. Zirphsea crispata, Linn. Atlantic coast of TJ. S., 



Europe, 126 



62. Talona explanata, Gray. West Africa, . . . 126 



63. Jouannetia (Pholadopsis) pectinata, Conrad. Cali- 



fornia, • 127 



64. Parapholas Californica,Conr. Dorsal valves removed. 



California, 127 



65. Penitella penita, Conrad. California, . . . 128 



66. Martesia striata, Linn. West Indies, . . . 128 



Plate 105. 



67,68. Gastrochsena mumia, Spengler. Philippines, . 119 



69. Cucurbitula cymbia, Spengler. Hong Kong, . . 120 



70-73. Teredo Norvegiea, Spengler. Europe, XJ. S., . 120 



, 74. Xylotrya palmulata, Lam. East Indies, . . . 123 



75. Turnus plenus, Gabb. Cretaceous; California, . . 126 



76. Turnus (Xylophagella) elegantulus, Meek. Cret.; Id., 126 

 77-79. Xylophaga dorsalis, Turton. England, , . 125 

 80, 81. Navea subglobosa, Gray. California, . . . 126 

 82,83. Pholadidea papyracea, Solander. Europe, . . 126 



84. Talona explanata, Gray. West Africa, . . . 127 



85. Solenopsis minor, M'Coy. Carboniferous ; Ireland, . 131 



86. Pharella Javanica, Lam. Java, ..... 131 



87. Solecurtus Dombeyi, Lam. W. Coast of S. A., . . 133 



