414 
EXPLANATION OF PLATES. 
FIGURE. 
PLATE 69. 
. Littorina littorea, Linn. New England, England, 
. Littorina (Melaraphe) angulifera, Linn. Cuba, 
. Littorina (Neritoides) obtusata, Linn. England, 
. Littorina (Cyclonema) cancellata, Hall. Paleozoic, 
; Littorina (Raulinia) alligata, Desh. Eocene, Paris 
basin, 
_ Tectarius pyramidalis, Quoy. " New Zealand, 
. Tectarius (Kchinella) Cumingii, Phil. Philippines, 
: AFicrodosd conica, Meek and Worthen. Carboniferous, 
Ills., 
. Modulus tectum, Gmel. ‘Viti Islands, 
. Risella melanostoma, Gmel. Australia, : i 
. Lisella (Plesiotrochus) Souverbianus, Fischer. New 
Caledonia, . : 
Risella (Limnotrochus) Thomsoni, ‘B.A. Smith. Lake 
Tanganyika, : : : 
. Lacuna pallidula, Da Costa. " England, 
. Lacuna (Epheria) vincta, Turton. Europe, 
. Lacuna (Hela) tenella, Jeffreys. England, . f f 
. Lacuna (Lacunaria) Alabamensis, Whitfield. Eocene, 
Alabama, 
. Lacuna (Spironema) tenuilineata, “Meek and Hayden. 
Cret..eUe i:. 
. Lacuna ’(Lacunella) depressa, Desh. Kocene, basin of 
Paris, . 
38. Cremnoconchus ‘Syhadrensis, Blan. India, 
. Fossarus costatus, Brocchi. Mediterranean, 
. Fossarus ambiguus, Linn. Mediterranean, 
. Fossarus (Isapis) anomala, C. B. Ad. Jam aica, 
Fossarus (Fossarina) patula, Ad. and Ang. Australia, 2 
. Fossarus (Tuba) alternata, Lea. Eocene, Alabama, 
. Planaxis suleatus, Lam. Central Pacific, 
. Planaxis ( Hinea) ‘Brasiliana, Lam. Brazil, 
. Planaxis (Quoyia) decollata, Quoy. Viti Islands, 
. Planaxis (Holeostoma) pilizerum) Phil., 
. Litiopa bombyx, Rang. Tropical Atlantic, 
Cerithium fusiforme, Sowb. Philippines, 
. Cerithium (Vertagus) lineatus, Lam. Polynesia, . 
. Cerithium (Cerithioderma) prima, Conr. Eocene, ae 
. Cerithium (Colina) macrostoma, Hinds. Borneo, 
. Cerithium (Cerithiella) metula, Lovén. Norway, . 
. Cerithium (Bittium) reticulatum, Da Costa. ingland, 
. Cerithium (Cerithiopsis) rugulosum, Ads. Jamaica, 
;. Fibula undulosa, Piette. Bathonien, France, 
