21 
Tellina crassa, Penn 
— compressa, Broc. . ... . 
— äonacina, L. . 
— elliptica, Broc 
— exigud ? Poli 
— faeilis, May 
— inccirnata, L 
— i lacunosa, Cliemn 
— nitida , Poli 
— planata , L 
— Seriegalensis, Hanl 
— strigosa, Gm 
— • ventricosa, Serr 
Gastrana fragilis, L. (Tellina) . . . 
Scrobicidaria plana, Dacosta (Trigonella) 
Synäosmya fabalis, Wood (Abra) . . 
— ohovalisfNo o d( Ampliidesma) 
Ervilia pusiUa, Pliil. (Erycina) . . . 
Mactra Aäansoni, Phil 
— antica, May 
— aspersa, Sow 
— Basteroti, May 
— cordiformis, Desh 
— faeilis, May 
— Gallensis, May . 
— Helvetica, May 
— - nucleiformis, May 
— ovalis, Sow 
— peregrina, May 
— Bietmanni, May 
— solida, L 
— spectata, May. 
— striatella, Lam 
Aeltere Stufen. 
Helvetian 
der 
Schweiz. 
Helvetian 
anderer 
Länder. 
Tortonian. 
I 
II 
111 
I 
II III 
N S 
Luz Be 
2 
2 
1 
3 
2 2 
3 
2 
2 
2 
2 2 
2 
3 
2 
2 
2 
3 
3 3 
3 
2 
2 
3 
'* 
2 
1 
3 
3 
2 
3 
2 
3 
3 2 
2 
4 
3 
3 3 
3 
2 
2 
4 
3 
2 
4 
4 
3 4 
3 
2 
1 
? 
2 
4 
2 
2 
4 
? 2 
2 
1 
2 
3 
3 4 
3 
3 
2 
2 2 
3 
4 
4 
3 3 
3 
3 
2 
2 
? 
2 
2 
2 
2 
5 
2 
5 
5 5 
4 
2 
2 
2 
2 
2 
2 
4 
3 
2 
1 
2 
3 
5 
2 
2 
2 
2 
2 
3 
2 
2 
3 
4 4 
3 
3 
2 
2 
3 
3 2 
2 
2 
2 
4 
2 
3 
?2 
2 
4 
1 
2 
2 2 
• 
4 
4 
4 
4 
4 
3 
4 
2 
4 
4 
2 
2 
3 
5 
4 
4 
4 
4 
3 
4 
4 
4 
2 
3 
4 
3 
2 
2 
5 5 
3 | 5 
3 
4 
Messin. Astian. 
