1 



l6o YORKSHIRE NATURALISTS' UNION. 



803. Cymbella subsequalis Grun. 



S.W. — Cusworth district, Doncaster (M. H. Stiles). 



804. Cymbella delicatula Kiitz. 



S.W. — Cusworth district, Doncaster (M. H. Stiles). 



805. Cymbella affinis Kiitz. 



S.W. — Marley, near Bingley. Ogden Clough. Crimsworth 

 Dean. 



Mid W.- — Near Buckden. Penyghent. Harrogate. 

 N.E. — Rievaulx Abbey. 



806. Cymbella gastroides Kiitz. 



S.W. — Goole ; Roche Abbey Lake (E. Hunter). Askern and 

 Hatfield districts ; Firsby Reservoirs (M. H. Stiles). Marley, 

 near Bingley. 



Mid W. — Baildon. Ribblehead. Ingleton. Simon's Fell 

 (iv. 1892). 



807. Cymbella lanceolata (Ehrenb.), Kirchn. 



[Syn. Cocconema lanceolatiim Ehrenb.]. 



S.W. — Cusworth district; Doncaster town water; Firsby 

 reservoirs ; Rossington ; Hatfield district (M. H. Stiles). 

 Askern (F. H. Allen ; J. M. Kirk ; M. H. Stiles). Hatfield 

 Chase (J. M. Kirk). Roche Abbey (J. N. Coombe ; M. H. 

 Stiles). Nab Wood, near Bingley. Bradford. 



Mid W. — Birk Crag, Harrogate (G. Norman). Roundhay 

 (W. B. Turner). Baildon. Moughton Fell. Holden Gill, 

 near Keighley. Horton-in-Ribblesdale. Arthington. Malham 

 Tarn Bog. Buckden. 



N.E. — Staindale. Hayburn Wyke. Cleave Cliffs, north of 

 Scalby. Carlton Bank, Stokesley. 



S.E. — Beverley. Spring Ditch ; Wawne ; Risby Pond ; New- 

 bald ; Hornsea Peat Deposit ; Driffield (G. Norman). 



Var. Boechii Ehrenb. ; Rabenh. [non Doryphora 

 Boechii W. ^xa.^Brebissonia Boechii (Kiitz.) Grun.]. 



S.W.— Roche Abbey (E. Hunter). 



808. Cymbella cymbiformis (Kiitz.) Brdb. 



[Syn. Cocconema cymbiforme (Kiitz.) Ehrenb.]. 



Trans. Y.N.U., 1899 (pub. July igot). Bot. Series, Vol. 5. 



