MARINE MOLLUSCA. 
Family PTERIIDAE. 
Malleus anatinus, Gmelin, 37, X/7. IV. 
Vulsella rugosa, Lamarck, 13. XII. 
Electroma ala-corvi, Chemnitz (Avicula ala-corvi, Reeve, 37,X.) XV. 
Electroma zebra, Reeve (Avicula zebra, Reeve, 37, X.) X. 
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Melina perna, Linn. (Ostrea perna, Hanley, 19,6. Perna (Isognomon) samoensis, Baird, 
Pinna muricata (Linn.), Reeve, 37, XZ. XV. 
Pinna nigra (Chemnitz), Dillwyn, 37,X/7. IX. 
Pinna saccata, Linn. 37, X/7. I. 
Pinna serrata, Solander (jun.?), 37, XZ. VII. 
Family MYTILIDAE. 
Modiola arborescens, Chemnitz, 37, XY. IX, X, XIII, XIV. 
Modiola auriculata, Krauss, 25, 10. IX. 
Modiola flavida, Dunker, 37, ¥. X. 
Lithodomus cinnamominus, Chemnitz, 37, Y. II. 
Lithodomus gracilis, Philippi, 37, X. XII. 
Lithodomus malaccanus, Reeve (Young?), 37,X. IX. 
Lithodomus nasutus, Philippi var.? 37,X. XIV. 
Lithodomus teres, Philippi? 37, XY. VII, XV. 
Modiolaria argentea, Reeve (Lithodomus argentews, Reeve, 37, X.) II. 
Septifer bilocularis, Linn. (Mytilus nicobaricus, Reeve, 37,X.) XII. 
Family ARCIDAE. 
Arca maculata, Sowerby, 37,/7/. I, IX, XI, XV. 
Arca imbricata, Bruguiére, 37,77. IX, XV. 
Arca (Anadara) clathrata, Reeve, 37,//. VII. 
Arca (Anadara) urypygmelana, Bory, 37,//. VII, IX. 
Arca (Anadara) antiquata, Linn. 37,//. Maldives. 
Arca (Scapharca) rhombea, Born, 37,//. IX. 
Arca (Acar) symmetrica, Reeve, 37,77. VII, VIII. 
Arca (Acar) domingensis, Lamarck, 24. II, VII, IX, XIII, XIV. 
