770 
Genus Cyclotella Kiitzin: 
C. COMPTA. Kg. Orinesby. 
C. Dallasiana. (Sui.) Breydon. 
C. Kutzingiana. (Thw.) Fresh and brackish water; Orinesby, 
Breydon, Fiordon, Biver Bure. " 
C. Meneghiniana. (Kg.) var. eectangulata. Grun. Orinesby, 
Horning, Costessey, Whissonsett. 
G. OPERCULATA. Kg. Oi’inesby, Costessey, St. Faith’s. 
C. OPERCULATA. var. MESOLEIA. Gi'un. Fiordon. 
(^. PAPILLOSA. (O’Meara.) Ormesby : rare. 
C. PUNCTATA. (Sin.) Titchwell, Breydon (Eiver Kene, near 
Wisbeach. W. Sm.). 
C. (Stephanodiscus) rotula. (Sin.) Orinesby, Homing. 
C. scoTfCA. (Kg.) Paver Bure, near Yarmouth. 
Genus Stephanodiscus Fhrenber<^ 
O* 
S. Hantzschiana. (Grun.) Breydon. 
Genus Actinocyclus Ehrenberg. 
A. CRASSUS. (Sm.) Sand-washings, Hunstanton, Breydon : rare. 
A. Palpsii. (Sm.) Found with the above : rare. 
A. PoPERir. Grun. Hunstanton : rare. 
A. suDTiLis. (Greg.) Sand-washings, Hunstanton, Breydon ; rare. 
Genus Coscinodiscus Ehrenberf’' 
C. CONCINNUS. (Sm. nec Ehr.) Stomachs of Noctiluca miliar is, 
Yarmouth : rare. 
G. EXCENTRICUS. (Ehr.) Same localities as preceding species. 
C. MINOR. (Kg. nec Sm.) Breydon, Wells, Hunstanton. 
C. NiTiDA. (Greg.) Sand- washings, Hunstanton : rare. 
C. NOBiLis. (Grun.) Stomachs of mjYfanV, Yarmouth. 
C. RADiATUS. Ehr. Sand-washings, Hunstanton, Breydon. 
C. Weisflogii. (Grun.) Breydon : rare. 
Genus Palmeria Greville. 
P. 1 lunaris. (Brcb.) Yarmouth Pier (== FI ZmiicoA-, Breb.) 
P. vulgare. (Kitton.) Sand-washings, Hunstanton, ■^^"ells 
{= Amphora complexa, Gregory). 
