Prof. Ehrenberg's Researches on the Infusoria. 93 



IX. Jlezhaja Saschtschita Steppe, near Orenburg. Salt water ob' 

 served at Orenburg — 6 Forms. 



Anguillula recticauda, n. sp. 

 £. Bacterium monas, n. g. 



cylindricum, al. sp. 



E. Doxococcus globulus, (Volvox, MuUer) 

 E. Loxodes cucuUulus, (Kolpoda, Muller) 

 E. Monas atomus, MUller, 



r 



sis 



X. Orenburg, on the River Ural, — 3 Forms. 



Navicula gibba, n. sp. . . . . 1 5'"— tu"' 

 . uncinata, n. sp. . . . . ^^ 

 turgida, n. sp. . . . • 3*«--S4 



XL— iJjuer Sakmara West from Orenburg : examined xvith conferva! 

 at Uralsk. — 1 Form. 

 E. Carchesium fasciculatum (Vorticella, Muller,) . 3'g'" 



XII. — Platofski Steppe between Barnaul and Kolivan in East Si- 

 beria, — 1 Form. 

 Astasia hiematodes, n. g. . . . . ^'3"' 



XIII.— A^5cA/|ym in the Southern Urals ; with confervce of marsh 

 water. — 2 Forms. 

 E. Pandorina morum, Borj, . . . . ^'-'''—^y 



Trichodiscus sol, n. g. . . . . ', 



XIV — Troizk East from the Urals in the Siberian Steppe ; from 

 corfervcB of a salt lake. — 1 Form. 

 E. Gomphonema discolor, n. sp. . . . j'^ "' 



XV. — Barnaul in East Siberia on the Obi.-^S Forms. 



E. licucophrys ? fluida, Miiller, . . . g»g"/ 



E. Mofias atomus, MUller, . . . . ji^ 



.. ovalis, n. sp. 



E. Navicula gracilis, n. sp. 



fusiformis, n. sp. 



Trichodina stellina, (Vorticelk Muller,) 



Trichodiscus Sol, n. g. 

 E. Vibrio rugula, Muller, . , 



S55 

 S»4 



45 



XYL^^Petropawlqfsk in West Siberia in the Ischim ; from salt 

 water of the Steppe, — 3 Forms. 

 Anguillula inflexa, n. sp. . . . , k'" 



