244 • 



Sub-Order 4. D I A T O M O P H Y C E M . 

 916. CLYTOTELLA, Kuetz. 



2G41. C. operculata, Kuetz. 



Buffalo City water supply. 



2642. C. Americana, J. W. Ward, hud. 



Buffalo. /. W. Ward. 



917. ACTINOCYCLUS, Ehrb. 



2643. A. Niagaras, H. L. Smith. 



Buffalo City water supply. 



918. STEPHANODISCUS, Ehrb. 



2644. S. Niagaras, Ehrb. 



Buffalo City water supply. 



919. MELOSIRA, Agardh. 



2645. M. Crotenensis, H. 



Buffalo City water supply. 



2646. M. varians, Agardh. 



Aurora, Erie Co. Wolle. 



920. SURIRELLA, Turpin. 



2647. S. linearis, Sm. 



Buffalo. /. W. Ward. 



2648. S. biseriata, Breb. 



Hamburg, Erie Co. E. S. Nott. 



2649. S. angusta, Kuetz. 



Buffalo. /. W. Ward. 



2650. S. splendida, Kuetz. 



Buffalo City water supply. 



2651. S. turgida, Sm. 



Buffalo City water supply. 



2652. S. ovalis, Breb. 



Buffalo City water supply. 



2650. S. ovata, Kuetz. 



Buffalo City water supply. 



2654. S. minuta, Breb. 



Buffalo. /. W. Ward. 



