218 WEST : NOTES ON THE FRESH-WATER ALG. 
Surirella splendida (Ebrnb.) Kiitz. Beverley. 
Surirella ovata Kiitz. Routh; Beverley; near Meaux Abbey. 
Surirella salina Sm. Waghen. 
Surirella minuta Bréb. Routh; Beverley; Newsholme; Tickton; 
near Meaux Abbey ; Waghen 
pinnata Sm. Beikcies ; Routh ; Newsholme. 
Combatants elliptica (Bréb.) Sm. Routh. 
Cymatopleura Solea (Bréb.)Sm. Beverley; Tickton; Newsholme; 
Routh ; Loftsome Bridge near Wressle. 
Epithemia turgida (Ehmb.) Kiitz. Newsholme. 
Epithemia Sorex Kiitz. Hornsea Mere. 
Epithemia Argus (Ehrnb.) Kiitz. Newsholme. 
Eunotia incisa Greg. Riccall Common. 
Eunotia bidens (Greg.) Rabh. Riccall Common. 
Cymbella cuspidata Kiitz. Beverley ; Tickton. 
Cymbella ventricosa Ag. Routh ; near Sutton ; Beverley. 
Cocconema lanceolatum Ehrnb. Beverley. 
Cocconema cymbiforme (Kiitz.) Ehrnb. Riccall Common; 
Beverley. 
Cocconema Cistula Hempr. Beverley; Loftsome Bridge near 
Wressle. 
Encyonema czspitosum Kiitz, Tickton ; Routh; Beverley. 
Amphora minutissima Sm. Beverley. 
Amphora ovalis Kitz. Routh ; Beverley; Loftsome Bridge near 
Wressle ; Tickton. 
Cocconeis Pediat Ehrnb. Beverley. 
Cocconeis placentula Ehrb. Hornsea Mere; Routh; News- 
holme ; Beverley ; Loftsome Bridge near Wressle. 
Achnasthitian microcephalum Kiitz. Tickton ; : Waghen te 
Routh. 
Achnanthidium lanceolatum Bréb. Beverley ; Routh; near 
Meaux Abbey ; Waghen. 
Achnanthes exilis Kiitz. Near Meaux Abbey; Newsholme; 
_ Tickton; Beverley. 
Rhoicosphenia euete (Kiitz.) Rabh. N ewsholme. 
ntidium hiemale (Lyngb.) Kiitz. Beverley. - 
Odontidium mutabile Sm. Beverley ; Loftsome Bridge near — 
Wressle ; Waghen. 
_ Odontidium Tabellaria Sm. Beverley. ae 
