Geiuis Rhabdonema KUtzing. 
R. ARCUATUJi. Kg. Cromer, growing on Ceraminm ruhrum. 
R. MiNUTUM. Kg. Cromer. 
Genus Cymatopleuua Smith. 
C. APicuLATA. Sm. Whissonsett : rare. 
C. ELLiPTiCA. Sm. Horning, Ilickling, Holt, and many other 
localities. 
C. SOLEA. Sm. Found with preceding species. 
Genus Kitz.scuia Hassell. 
N. APicui.ATA. Greg. Rreydon. 
K. ANGUSTA. Sm. Costessey, Weston, Whissonsett. 
N. BiEOB.vrA. (Sm.) Rreydon. 
N. DEUiLis. (Grun.) Osier Car, Heigham. 
N. uiMiNUTA. (Grun.) Rreydon. 
N. DUBiA. (Sm.) Rreydon, i\Iouth of the Rure, salt-water ditche.s. 
N. FASCicuLAT.v. Gi’un. Growing on the piles of Yarmouth Jetty. 
N. GRACILIS. (Sm.) Hunstanton, Wells, Rreydon. 
K. IIYALINA. (Greg.) Hunstanton, sand-washings. 
N. iiuNGAUiCA. (Grun.) Rreydon, ditch near Yau.xhall Station, 
Y'armouth. 
K. LINEARIS. (Sm.) Whissonsett, Ormeshy, Horning. 
K. .MiNUTissi.MA (Sm.) ;^^ 03 s, Osier Car, Heigham; not uncommon 
on wet walls. 
K. NAVicULARis. (Rrcb ) Hitch near Vauxhall Station, Yarmouth. 
FT. OBTUSA. (Sm.) Whissonsett, Flordon, Horning. 
K. PLANA. (Sm.) Rreydon, Wells. 
K. PANDURiFORMis. (Greg.) Sand-washings, Hunstanton, AVells. 
K. PUNCTATA. (Sm.) Hunstanton, Wells. 
N. RECTiuscuLA. (Gruu.) Rreydon. 
N. scUTELLUM. (Sm.) Ri-eydon : rare. 
K. siGM.L (Sm.) Fret^^uent in all salt and brackish-water ditches. 
K. siG.MA var. bigida. Grun. Rreydon. 
K. SIGMA var. scabra. Cleve. Rreydon. 
K. siGMOiDEA. (Sm.) Orme.sby ditches. Horning, Flordon. 
N. sociALis. (Greg.) Rare in the Hunstanton sand-washings. 
K. SPATiiULATA. (Sill.) Found with the above, but very rare. 
