286 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jan. 4, 



Section fig. 2 is also taken from the west side of the lake, but a 

 few miles lower down, near the village of Inputsitza. 



Pig. 2. — /Section of the Steppe Deposits near Inputsitza. 



a is a stratum, about 12 feet thick, of grey sandy marl. The 

 striated bivalves {Cardium or Didacna) found in the lower 

 group of freshwater strata are abundantly dispersed through it, 

 having their valves closed. In the upper part there is a very 

 fossiliferous bed, about 1 foot thick, containing Unio, Planorbis, 

 Paludina (large and small), Melanopsis (two species, large and 

 small, and both smooth), also a Limncea (L. peregra, apparently) 

 and Neritina. 



b. A bed of black peaty marl, with lignite and impressions of 



leaves and weed. At its base is a thin stratum of ferruginous 

 sandstone, with a thin band of ochre-like clay beneath. 



c. 6 feet of yellow sandy marl, with a few of the same fossils as 



those in a. 

 d is a bed of dark peaty marl, 5 feet thick. 



e. A band of black peat ; 6 inches. 



f. Dark peaty marl, 10 feet thick, with freshwater shells. The 



fossils occur chiefly in a bed about 1 foot thick. 



g. A fragment of the sands and indurated sandstones shown in d 



of section, fig. 1, near Bolgrod. It is similarly composed of 

 detached bands of gypseous sandstone and indurated sandy marl, 

 with casts of freshwater fossils upon them. Both g and /have 

 been subjected to considerable degradation or denudation before 



been examined by S. P. Woodward, Esq., F.G-.S., who has kindly supplied the 

 following list : — 



Fossil shells from the Lower Freshwater Deposits of Bessarabia from near 

 Bolgrod, Moldavia. 



Paludina vivipara ? 



, young, of a more ventricose 



form. 



Valvata, sp. 



Rissoa ? exigua, Eichw. ? ; shell imper- 

 forate. 



Triton, Eichw. ? ; shell umbilicate. 



Hydrobia ? Conus, Eichw. ? ; slender, 

 3 lines long. 



Fossil shells from the Upper Freshwater Series at the South end of Lake Yalpiik. 



Paludina vivipara ? ; with flattened I Unio pictorum. 



whorls. | Cardium (Didacna) crassum. 



Melanopsis acicularis, Fer. 

 Neritina fluviatilis. 



, sp. 



Planorbis corneus. 

 Limnaja peregra. 

 Cardium (Didacna). 

 Dreissena polymorpha. 

 , sp. 



