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PROCEEDINGS OF THE GEOLOGICAL SOCIETY.
Table {continued).
Species.
Pupa marginata, Drap. — umbilicata, Drap. — (Vertigo) antivertigo, Drap. — (— ) pusilla, Mull. — ( — ) substriata, Jeff. Succinia putris, Linn. Unio litoralis, Lam. — pictorum, Linn. — tumidus, Phil. Valvata cristata, Mull. — piscinalis, Mull. Zua lubrica, Mull. Velletia lacustris, Mull.
