ı 
x 
x 
r 
x 
“ 
3 
4 
| Tafel IV. 
» % N 
Fig. 1-6. Umio Ischiliensis n sp. — 5.25 [41]. 
0.00» 7-11. Corbicula methoria n.sp. — 5.23 [39]. 
2» 12-16. Corbieula obrulschewi n.5p.— 5. 23 [39]. 
