Bibliographical Notice. 435 
The following appear to have continued from the Miocene brackish- 
water beds :— 
Melania Escheri, Brongn. Neritina picta, Fér. 
Melanopsis inconstans, Newm. Helix turonensis, Desh. 
Bouei, Fér. pomatia, L 
vindobonensis, Fuchs, Dreissena polymorpha, Pall. 
Neritina nivosa, Bras. 
From the Miocene freshwater beds :— 
Melania Escheri, Brongn. Bythinia croatica, Brus. 
Melanopsis premorsa, L. Neritina callosa, Meneg. 
Esperi, Fé. Dreissena Fuchsi, Pilar. 
acicularis, Wér. 
—— impressa, Krauss. 
Hydrobia stagnalis, Bast. 
triangularis, Partsch. 
balatonica, Partsch. 
From the Pliocene Congeria-beds :— 
Hydrobia stagnalis, Bast. Valenciennsia annulata, Rousseau. 
Bythinia tentaculata, L. Pauli, R. Horn. 
Vivipara bifarcinata, Bielz. Pisidium amnicum, Miill. 
All the other Dalmatian species come from the Pliocene freshwater 
marl; and the Croatian and Slavonian from the freshwater Palu- 
dina-clays, which the author regards as different from the true 
Congeria-beds. 
The relationships of all the fossil species with those now found in 
the several ‘* Regions” defined by naturalists are fully treated of. 
The genera under notice are :— 
Amnicola (2 spp.). Neritina (9). 
Ancylus (1). Pisidium (2). 
Bythinia (3). Planorbis (6). 
Dreissena (11). Prososthenia (4). 
Emmericia, nov. gen. (2). Pyrgula (2). 
Fossarulus (3). Spheerium (1). 
Helix (5). Stalioa, nov. gen. (2). 
Hyalina (1). Succinea (2), 
Hydrobia (5). Unio (20). 
Limnza (4). Valenciennsia (3). 
Lithoglyphus (2). Valvata (3). 
Melania (1). Vivipara (28). 
Melanopsis (24). 
Descriptions of the 139 species, and of some genera in particular, 
follow, illustrated by the seven lithographic plates. 
In an appendix, on the shells found in the Congeria-beds of Agram, 
Sp. Brusina treats of additional species belonging to 
Ampullaria (1). Lithoglyphus (1). 
Cardium (17). Melanopsis (2). 
Cyclostomus (1). Micromelania, nov. gen. (5). 
Dreissena (3). Planorbis (3). 
Hydrobia (1). Pyrgula (1). 
Limnea (2). Valvata (3), 
The author has worked con amore and to good purpose. He shows 
his results often in useful tables and classified lists. The printing 
of the memoir is good; and the lithographs are bold, careful, and 
natural, though somewhat poorly printed. _ 
