181 
g21. CYMATOPLEURA, Sm 
2655. C. elliptica, Sm. 
Buffalo City water supply. 
2656. C. Solea, Sm. 
Buffalo City water supply. 

g22. EPITHEMIA, Bréb. 
2657. E. turgida, Kuetz. 
Buffalo. 7. W. Ward. 
2658. E. Sorex, Kuetz. 
Buffalo. /. W. Ward. 
2659. E. ventricosa, Kuetz. 
Buffalo. 7. W. Ward. 
2660. E. gibba, Kuetz. 
Buffalo. J. W. Ward. 
2661. E. Argus, Kuetz. 
Buffalo. Rare. 7. W. Ward. 
2662. var alpestris, Rabenh. (Z£. algestris, Sm.) 
On bark of trees, Buffalo. /. W. Ward. 
923. EUNOTIA, Ehrb. 
2663. E. Arcus, Kuetz. (AHimantidium Arcus, Ehrb.) 
Aurora, Erie Co. Wodlle. 
2664. E. sf. 
Buffalo. /. W. Ward. 
924. CYMBELLA, Agardh 
2665. C. cuspidata, Kuetz. 
Buffalo City water supply. 
2666. C. maculata, Kuetz. 
Buffalo, 7. W. Ward. Hamburg, Erie Co. £. S. Nott. 
2667. C. ventricosa, Agardh. 
Buffalo. /. W. Ward. 
2668. C. lunata, Sm. 
Buffalo. J. W. Ward. 
925. COCCONEMA, Ehrb. 
2669. C. lanceolata, Ehrb. (?) 
Hamburg, Erie Co. £. S. Nott. 
