25 



Amphora salina borealis (Kuetz. ) Elmore. 



Amphora borealis Kuetz. Bacill. 108. (1844) 

 Amphora salina minor V. H. Syn 57. (1880) 

 Fairbury. (4592.) 

 Bacillaria paradoxa (Gmel. ) Grun. Crete. (4759) 

 Campylodiscus campylodiscus (Bhr. ) Elmore.. 



Surirella campylodiscus 'Ehr. Yerh. 424. (1843) 

 Campylodiscus ehrenbergii 'Ralis, 'Pritchard lot. 802. (18G1) 

 Talmage, Fairbury, Brock, Lincoln, Auburn, Arago, Brown- 

 ville. Weeping "Water, Ashland. (4598) 

 •Cocconeis placentula Ehr. 



Holt county, Bellevue; fossil, Mullen. (4594) 

 -Cyclotella meneghiniana Kuetz. 



Lincoln, Weeping Water, Talmage. (4595) 

 <Cymbella fusidium (Ehr.) Elmore. 



Cocconema fusidium Ehr. Inf. 26. (1838) 

 Cymbella affinis Kuetz. Bacill. 80. ( 1844) 

 ' Humboldt. (4596) 

 'Cymbella cuspidata Kuetz. 



Bellevue; fossil, Mullen. (4597) 

 Cymbella inequalis (Ehr.) Elmore. 



Navicula inequatis Ehr. Inf. 184. (1838) 

 Cymbella, ehrenbergii Kuetz. Bacill. 79. (1844) 



Holt county, Weeping Water, Talmage; fossil, Mullen. 

 (4598) 

 Cymbella levis Naeg. 



Fossil, Mullen. (4599) 

 ■Cymbella cistula (Hempr.) Kirchn. 



Fossil, Mullen. (4600) 

 Cystopleura gibba veniricosa (Kuetz.) Grun. 



Bulo, Georgetown, Peru, Arago, Humboldt, Tecumseh, 

 Bellevue, Plattsmouth, Cherry county, Holt county. 

 (4601) 



