N. i-'ASCiATA. (Lagei’stadt.) Osier Car, lleighain. 
N. KiUMA. (Kg.) I'rei|uent in fresh-Avater lUtclies. 
X. FOUTis. (Kg.) ILunstanton, Wells. 
X. FULVA. Ehr. Horning Fen. 
X. CiASTBUM. Ehr. Osier Car, llcighain. 
X. GENTiLis. (Donk.) Whissonsett, Ormesby, Costessey. 
X. GiiiBA. Ehr. Holt, Flordon, Costes.sey. 
X. GinnERULA. (Kg.) Ormesby, Hickling, Whissonsett, Ereydon. 
X. GIGAS. Ehr. Hickling Broad (this is the Pinnnhtria nohilis 
of Win. Smith, but not of Ehrcnberg ; the true P. nobili-i 
ha.s, I believe, not been found in this country. 
X. GLOiucKi’s. (Orcg.) Fouml by Professor Gregory in gathering 
from Flordon, sent to him by the late Thos. Pirightwell, 
E.s(j., F.L.S. It ha.s not been detected in any subse([uent 
gathering.s. 
N. GRANULATA. (Bivb.) Wells, Hunstanton, and Branca-stor 
Samis. 
X. iiEBES. (Ralfs.) Ormesby. 
FT. Hennedyi. (Sin.) Breydon : very rare. 
X. HU.MERoSA. (Breb.) Wells, Hunstanton, and Branca.ster Sands. 
X. iiUMiLis. (Donk.) Whissonsett, I'lordon, Costessey, Horning, 
Holt. 
X. INTEGRA. (Sm.) Yarmouth, in a brackish- water ditch. 
X. Kotzschyana. (Grim.) Osier Car, Heigham. 
X. n.EVi.ssiM.A. (Kg.) Ormesby, Horning Fen. 
X. L113ER. (Sm.) Wells. 
X. LiNE.vTA. (Greg.) Wells ; rare. 
X. littoralts. (Donk.) Hunstanton. 
X. LYRA. Ehr. Wells, Breydon : rare. 
X. MARINA. (Ralfs.) Breydon, Wells, Yarmouth, Hunstanton: 
rare. 
X. MAXIMA. (Greg.) Hunstanton, Wells. 
X. MENiscULus. (vSehumann) var. upsaliensis. (Griinow.) 
Breydon. 
X. MiNUTALA. (Kg.) Wells, Huiistanton. 
X. JiUTiCA. Kg. Osier Car, Heigham. 
X. NODOSA. (Sm.) Osier Car, Heigham. 
X. OBLONGA. (Kg.) Horning, Ormesby, Whissonsett, Costessey 
(a very common species). 
