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 MACTRIDiE XV. 



Mactra, o species, 8 specimcus. Manilla, Coquimbo, Aradas, 



Malta. 

 Amphidesma, 4 species, 8 spccimens. Chili, Peru. 

 Gnatodon, 1 species, 1 specimen. Florida. 

 Lutraria, 3 species, 4 specimens. Holland, Adriatic Sea. 



TELLINID,E XVI. 



Tellina, 30 spocies, 57 specimens. Caliphamia, Granada 



Islands, Twofold Bay, Japan, Red Sea, Guinea, Malta. 

 Tellinides, 1 species, 1 specimen. Malta 

 Diodunta, 1 species, 1 specimeu. Norway. 

 Capsula, 1 spccies, 2 specimens. Australia ? 

 Capsa, 1 species, 2 specimens. Brazil. 

 Psammobia, 5 species, 7 specimens. Sumatra, New Hollaud 



Sicily, Malta. 

 Psammotea, 1 species, 2 specimens. New Holland. 

 Sanguinolaria, 1 species, 1 specimen. India ? 

 Scrobicularia, 1 species, 1 specimen. Sicily. 

 Mesodesma, 5 species, 3 specimens. Sumatra, Pliilippine 



Islands, Port Curtis, Red Sea, Uuited States, Naples, 

 Egeria, 1 speciep, 14 specimens. New Zealand. 

 Donax, 8 species, 26 specimens. Panama, Indian Ocean, 



Malta. 

 Erycina, 1 species, 2 specimcns. Valparaiso. 

 Galatea, 1 species, 2 specimens. Nile. 



SOLENID.E XVII. 



Solcn, 8 spccies, 17 specimcns. Coquimbo, Chili, Sumatra, 



Malta. 

 Solccurtus, 2 specics, 3 specimcns. Gangos. 



MYACID.E XVIII. 



Mya, 1 species, 2 specimens. California ? 

 Corbula, 8 species, 9 specimens. Eucnos Ayrcs, Moroton 

 Bay, Malta. 



