26 GEOLOGICAL MEMOIRS. 



Fiinfkirchen deserve special notice. From Arpad, south of this 

 place, and from Hidas, on the N.E., Prof. M. Majer has sent to the 

 Imp. Museum of Vienna very remarkahle Congerice, of rhomboidal 

 shape (Congeria rhomboidea, Homes), and large Cardia, with wide 

 gaping shells. The geological survey of this district may probably 

 lead to the discovery of the Congerian strata at other localities, 

 especially as M. Vicquesnel* has noticed the occurrence of Congerice, 

 together with Planorhes and Paludince, in the region of the upper 

 sources of the River Morava in the basin of Pristina at the northern 

 foot of the Schardagh (Turkish Servia). This basin, however, was 

 as little connected immediately with the Congerian sea of Hungary 

 as were those of Fohnsdorf and of Thurocz (the latter to be men- 

 tioned presently) ; but the range of its fauna (isolated in higher 

 horizons) nevertheless extended over these lakes. 



Another occurrence of the Inzersdorf fauna on the eastern margin 

 of the Hungarian basin is authenticated beyond doubt. Dreissena 

 Brandii, found by M. Kudernatschf near Kakowa, E. of Wersehetz, 

 on the banks of the Karatsch, belongs probably to it. I myself J 

 found near Tataros, E. of Grosswardein, numerous individuals of 

 Melanopsis Martiniana, M. Bouei, and Cardium sp. Long pre- 

 viously Dr. Boue§ had observed fossil Paludince and other fresh- 

 water forms near Tirod, on the road from Grosswardein to Klausen- 

 burg, and had noticed farther eastward, near Korviczel, at the 

 western foot of the Kiraly-Hago, the presence of marls with Palu- 

 dina, Planorbis, Cyclas, Cyrena, &c, resting on marine strata con- 

 taining Pectunculus and Natica. 



The most important discovery respecting the subject in question 

 has been brought to light by three borings (still in progress) on the 

 Hungarian plain in the environs of Arad, of which M. Er. Path, 

 superintending these operations, has addressed an account to Director 

 Haidinger|[. The easternmost boring, situated within the advanced 

 hills, 3000 feet west of the village of Zabales (in the Circle of Lugos), 

 has been sunk through the following strata: — 1. Humus, 6 feet; 

 2. Yellow and micaceous clay, 9 ft. ; 3. Soft, fine-grained, mica- 

 ceous sandstone, 2\ ft. ; 4. The same, somewhat solid, 1ft. ; 5. Sand- 

 stone, as under 3, 2 ft. ; 6. Sandstone, as under 4, 1 ft. ; 7. Soft, 

 yellowish, micaceous sandstone, 30|ft. ; 8. A similar sandstone, 

 with Cardium sp. and Melanopsis pygmaa, Partsch, 12 ft. ; 9. Blue 

 clay, with Unio, Cardium, Congeria triangularis, Melanopsis Mar- 

 tiniana, M. pygmcea, 32 ft. ; 10. Greyish-blue clay, without discern- 

 ible organic remains, 32 ft. ; 11. Yellow argillaceous sand, 63 ft. ; 12. 

 Yellowish-grey loose sand, 12 ft. ; 13. Bluish-grey, argillaceous, 

 very fine sand (somewhat compact), 18 ft. ; 14. Very fine, yellowish, 

 loose sand, 9 ft. ; - 15. Sandy clay, not yet sunk through, 53 ft. — 

 Total . . 283 ft. 



As far as may be judged from the specimens sent, the two other 

 borings, lying farther westward, and wholly in the plain, have not 



* Mem. Soc. Greol. France, v. p. 35. f Haidinger's Berichte, iv. p. 463. 



I Jahrb. geolog. Reichs. iii. p. 24. § Mem. Soc. Geol. France, i. p. 303. 



|| Jahrb. geolog. Eeichs. x., Verhandlungen, p. 109. 



