— 461 — 



Pages. 



Eine neiic Tostacclliilcngatliing in Australien, von 



C. SemperilSm) 574 



Observations on Iho genus Unie; togelher witli 

 descriptions ol" new species in thç family Ujiio- 

 nidte, and descriptions of iicw species of tlie Me- 

 lanidae and raiudinœ, by Isaac Lea. Vol. XU 

 (18G9) /iU- 



Descriptions of twelve new species of Unionida3 



(Vom soutli America, etc., by Isaac Lea (I8G8). 15(3 



On Ihe species of Ceecida?, Corbiilidaî, Volutidic, 

 Cancellariidae and PatellidiE found in Japan, by 

 Arthur Adams {i^GS) 4-57 



On Ihe species of Veneridœ found in Japan, by 

 Arllmr Adams{iS69) 457 



Das Gebiss der Schnecken zur Begriindung einer 

 naturlichen Classification untersucht von D' F. 

 H. Troschel, vol. II, livr. 5 (1869). . . . 440 



Alcune note di Malacologia Argenlina del profes- 



sore Pellegrino Slrobel (48G8) 445 



Nota su alcune conchigliedi Sicilia pubblicatecome 

 nuove dal professor C. Maravigna, per il cav. 

 Luigi Benoit ed il prof. Andréa Aradas (1869). 444 



Descrizion.e di una nuove specie del génère Trifo- 

 ris di Deshayes. Nota del prof. Andréa Aradas 

 (1869) 445 



L'habitat dei Molluschi marin!. Saggio critico del 

 dott. /l.iWanzoni(1869) 446 



Journal d'observations faites sur les animaux ma- 

 rins du bassin d'Arcaohon pendant les années 

 1866, 1867, 1868, par .4. La font (1869). . . 447 



Notes on somc récent mediterrancan species of 



Brach\o]}oùix, by Thomas Davidson. . . . 449 



