114 PROCEEDINGS OF SOCIETIES. 



S. spleudida, Kiitz. — Bidston marsh, October, 1856. 



8. striatula, Turp. — Frequent in brackish water. Bidston 



marsh, &c. 

 S. Gemma, Ehr. — Primrose hill, New ferry, July, 1856; 



Bidston marsh, October, 1857. 

 S.fastuosa, Ehr. — New Brighton, April, 1858. 

 S. Craticula, Ehr. — Bidston marsh, October, 1856. 

 S. ovalis, Breb. — Frequent. Railway bridge, Spital, May, 



1857, &c. 

 S. panilariformis, Sm. — Rock at Storeton, March, 1857. 

 S. ovata, Kiitz. — Common in fresh water. 

 S. salina, Sm. — Sands at Great Meols, May, 1857. 

 S pinnate, Sm. — Pit at Rock ferry, March, 1857 — Railway 



bridge, Highfield, L. Ii. 

 S. angusta, Kiitz. — Rock at Storeton, March, 1857. 

 S. minuta, Breb. — Lock at Sefton, July, 1857. 

 S. Crumena, Breb. — River Fender, June, 1856 ; near Wallasey 



pool, Seacombe, April, 1857 ; River Alt, July, 1857, &c. 

 Tryblionella, Smith. 

 T. gracilis, Sm. — Not uncommon in brackish water Fre- 

 quently from Bidston marsh. 



Far (5. — Primrose hill, New ferry, July, 1856. 



T. marginata, Sm. — Not uncommon in brackish water. Bid- 

 ston marsh, October, 1857; Seacombe, April, 1858, &c. 

 T. punctata, Sm, — Primrose hill, New ferry, July, 1856. 

 T. acuminata, Sm. — Frequent in brackish water. Bidston 



marsh, &c. 



Cymatopleura, Smith. 

 C. Solea, Sm. — Bidston marsh, Oct. 1856, and Oct. 1857. 

 C. apiculata, Sm. — Frequently met with, R. Alt, &c. 

 C elliptica, Sm. — Bidston marsh, October, 1857; R. Alt, 



July, 1857, &c. 



Nitzschia, Hassall. 

 N. sigmn'ulea, Sm. — Not uncommon. R. Alt at Sefton, July, 



1857, &c. 

 N. Bretjissonii^m. — Bidston marsh, July, 1 856, and Mar. 1 856. 

 N. Sigma, Sm. — Not uncommon in braekish water. Bidston 



marsh, frequently. 

 \. linearis t Sm. — Rather common. R. Alt, &c. 

 A. annularis, Sm. — New Brighton, March, 1857, L. H. 

 2V". Amphioxyn, Sm. — Frequent, though generally but few in a 



gathering. Moss from Rock ferry, October, 1857. 

 N. mmutissima, Sm.— Patrick's well, Spital, March, 1857. 

 N. vivax, Sm. — Bidston marsh, October, 1857 — Birkdale 



marsh, June, 1857, G. M. B. 



