INDEX TO THE GENERA. 
Page 
Carinatus,* Mull. France, &c. 
Spirorbis,* Muli. France, &c. 
Contortus,* Muli. France, &c. 
Hispidus,* Drap. France, &c. 
Nitidus,* Muil. France, &c. 
Imbricatus,* Mull. France. 
Complanatus,* Turt. France, &c. 
PEEUQHOTOMA ....-5.005 0620's 79 
Babylonia, Lam. East Indies. 
Nodifera, Lam. Java. 
Gracilis,* Dike. England. 
POLYSTOMELLA ~....<< tavwers 144 
PROM AT.. ec aclce es ers 103 
Patula, Lam. West fete 
Hemastoma, Lam. Senegal. 
Mancinella, Lam. East Indies. 
Neritoides, Lam. Cape de Verde. 
Sertum, Lam. India. 
Lapillus, Zam. Europe. 
Nucleus, Zam. Barbadoes. ? 
PTEROCERA .....-. cae OS 
Lambis, Zam. Indian Seas. 
Aurantia, Lam. East Indies. 
Chiragra, Lam. East Indies. 
RA i ase ws vc 'c,e esis + 29 
Mumia, Lam. “Ww est Indies. 
Uva, Lam. West Indies. 
Sulcata, Lam. East Indies. 
Fusus, Lam. Antilles. 
Secale,* Drap. Austria, &c. 
Umbilicata,* Drap. France, &c. 
Muscorum,* Lam. France, &c. 
Fragilis,* Zam. France, &c. 
Pygmea,* Drap. France, &c. 
Vertigo,* Drap. France, &c. 
Antvertigo,* Drap. France, &c, 
Goodallii,* Drap. England, &c. 
Pe MBMMPOHHEA.. 0 .< sees ces Pred 
Dolabrata, Lam. South America. 
Plicata, Lam. Isle of France. 
Maculosa, Lam. ? 
PYRULA 
Perversa, Lam. Florida. 
Vespertilio, Lam. Indian Ocean. 
Melongena, Lam. Brazil. 
Reticulata, Lam. Indian Ocean. 
Ficus, Lam. East Indies. 
Spirillus, Lam. Tranquebar. 
PRSWEEDA occ 0 se cesses 
om R10) SO ee Ca 6 @ « a 6 6 eS 
87 
153 
Page 
Crumena, Lam. Amboyna. 
Spinosa, Lam. East Indies. 
Granulifera, Lam. Java. 
Ranina, Lam. Mediterranean, &c. 
RIGINULA 25.2% 0's sje 's 0. eat 
Horrida, Lam. Tahoe Ocean. 
Arachnoides, Zam. Indian Ocean. 
Morus, Blain. Isle of France. 
HOSTERGARGA .-)) aa « oles ares 94 
Pespelicani,* Lam. Mediterranean. 
HOTELLA (pono eee eet, OU 
Lineolata, Zam. Manilla. 
SCALARTA 2. =. Pc ae 63 
Pretiosa, Lam. ‘East Indies. 
Lamellosa, Lam. Corsica, &c. 
Communis,* England, &e. 
Fragilis, Gray. ? 
Raricosta, Lam. 
SICARETUS 
Haliotoideus, Lam. 
Concavus, Lam. Africa. 
Australis, Gray. South Seas. 
SOLARIUM 
Perspectivum, Lam. East Indies. 
Granulatum, Zam. India. 
Levigatum, Lam. ? 
Variegatum, Lam. Fegee Isles. 
Areola, 
Mediterranean. 
57 
eeeeerd 
cose ee eee 
SPIEWEA Cs 4 6s). 0 sa xe 
Peronii, 
OMREATEWA Se. Sis a Sus, hae eee 58 
SHHOMEAOTE TIGA: 3 ssc co tee 58 
Imbricata, Lam. South Seas. 
Auricula, Lam. New Holland. 
SEROMA 5 Us a ene Sco he sivamas se Oo 
Lentiginosus, Zam. East Indies. 
Auris Diane, Linn. East Indies. 
Pugilis, Zinn. West Indies. 
Gibberulus, Linn. Batavia. 
Luhuanus, Linn. West Indies. 
_ Mauritianus, Zam. Isle of France. 
Canarium, Linn. East Indies. 
Vittatus, Linn. Moluccas. 
Succinctus, Zinn. Indian Ocean. 
Urceus, Linn. Indian Ocean. 
Se ee ee 86 
Nodulosa, Lam. New Zealand. 
SUCCINEA .. Beare 37 
Amphibia,* Lam, " France, &c, 
