120 PROCEEDINGS OF SOCIETIES. 



Himantidium, Ehrenberg. 

 H. pectinate, Kiitz. Frequent. Well at Storeton, March. 



1857, &c. 

 H. undulatum, Sm. — Well at Storeton, March, 1857. 

 H. Soleirolii, Kiitz. — Well at Storeton, March, 1857. 

 //. gracile, Ehr. — Rather common. Bidston marsh, May, 



1856; rock in Dingle, March, 1857, &.c. 



Odontidium, Kiitzing. 

 0. mntabile, Sm. — Patrick's well, Spital, March, 1856; Skew 



bridge, Bebbington, May, 1857; railway bridge, Spital, 



May, 1857. 

 0. parasiticum, Sm. — Bidston marsh, October, 1857; in 



Rivington Pike water supplied to the town. 



Denticula, Kiitzing. 

 D. obtusa, Kiitz. — Canal bridge over R. Alt, June, 1857. 



D. sinuata, Sm. — Railway bridge, Spital, May, 1857 ; rock 



in Dingle, March, 1857; canal bridge over R. Alt, 

 June, 1857. 



Fragillaria, Lyngbye. 

 F. capuciita, Desm. — Rock ferry, March, 1857; a curious 



variety from Bidston marsh, October, 1857. 

 F. virescens, Ralfs. — Patrick's well, March, 1856. 



Eucampia, Ehrenberg. 



E. zodiacus, Ehr. — Rock ferry slip, July, 1856 — Stomach of 



Noctiluca, Southport, August, 1858, T. S. 



ACIINANTHES, Bory. 



A. longipes, Ag. — New Brighton, March, 1857, L. H. 



Canning Graving Dock, July, 1857, R. Daw. 

 A. brevipes, Ag. — Common in the Mersey. Rock ferry slip, 



July, 1856; Dingle Bay, February, 1857, &c 

 A. subsesslis, Kiitz. — Bidston marsh, May, 1856; July, 1856; 



and Oct. 1857. 

 A. exUis, Kiitz. — Rock in Dingle, March, 1857; railway 



bridge, Spital, May, 1857; canal bridge over R. Alt, 



June, 1857. 



ACIINANTHIDIUM, Kiitzing. 



A. lanceolatum, Breb. — Not uncommon. Rock near Storeton, 



March, 1857, &c. 

 A. coarcialum, Breb. — Skew bridge, Bebbington, May, 1857; 



moss from Rock ferry, October, 1857. 

 A. microccphalnm, Kiitz. — Canal bridge over R.Alt, June, 1857. 



