776 REV. E. N. BLOOMFIELD ON THE ALG.E OF SUFFOLK. 
Diatoma Ehrenbergii, Kiitz. forma grandis, W. Sm. 
Bury. 
Fragilaria capucina, Desm. Common. 
,, mutabilis, Griin. Common. 
,, construens, Griin, var. bixodis, Griin. Walton. 
Synedra Ulna, Ehr. Common. 
,, radians, W. Sm. Common. 
,, pulchella, Kiitz. Common. 
Eunotia lunaris, Griin. Common. 
Achnanthes linearis, W. Sm. Walton. 
Cocconeis Pediculus, Ehr. Common. 
,, Placentula, Ehr. Common. 
Navicula serians, Kiitz. Near Ipswich. 
,, cuspidata, Kiitz. Common. 
,, Iridis Ehr., var. firma. W. Sm. Bury, Ipswich, 
&c. 
,, var. producta, W. Sm. Bury, &c. 
,, elliptica, W. Sm. Frequent. 
,, elegans, W. Sm. Ipswich, Walton, &c. 
,, limosa, Kiitz., var. gibberula, Van Heurck. 
Bury, &c. 
,, ambigua, Ehren. Bury, &c. 
,, amphisbcexa, Bory. Common. 
,, tumens, W. Sm. Common. 
,, binodis, W. Sm. Bury, &c. 
,, pygmasa, Kiitz. Walton, Ipswich. &c. 
,, major, Kiitz. Common. 
,, nobilis, Kiitz. Cavenham Heath. 
,, viridis, Kiitz. Common. 
,, oblonga, Kiitz. Common. 
,, peregrina, Kiitz. Common. 
,, Tabellaria, Kiitz., var. acrospH/ERIA, Raben. 
Cavenham Heath. 
,, radiosa, Kiitz. Common. 
,, acuta, Van Heurck. Bury. 
,, gracilis, Kiitz. Bury, &c. 
,, viridula, Kiitz. Bury, &c. 
