184 YORKSHIRE NATURALISTS' UNION. 



Var. capitatum (Ehienb.) V.H. 



[Syn. Gomphonema capiiattivi Ehrenb.l 



S.\\'. — Doncaster town water ; Hatfield district (M. H. Stiles). 

 Near Mirfield. Bradford. CuUingworth. Bingley. 



Mia W. — Malham Tarn. Boston Spa. Baildon. Ribblehead. 



N.W.— Cronkley Fell. Great Shunnor Fell. Dodd Fell. 

 Sedbergh. 



N.E. — Seamer. Terrington. 



S.E. — l.oftsome Bridge, near Wressle. Cottingham ; Hornsea 

 deposit (G. Norman). Anlaby Road (Dr. Munroe). 



910. Gomphonema acuminatum Ehrenb. 



S.W. — Askern, Cusworth, and Hatfield districts; Firsby 

 reservoirs; Doncaster (!) town water; Rossington (M. H. Stiles). 

 Goole ; Roche Abbey (E. Hunter). Askern ; Hatfield Chase 

 (J. M. Kirk). Denholme. 



Mm W. — Wigton Moor. Roundhay (W. B. Turner). 

 Markington (Rev. J. S. Tute ! ). Baildon. Bolton Woods. 

 Boston Spa. 



N.W. — ^Sedbergh. Mickle Fell. Great Shunnor Fell. Jervaulx 

 Abbey. 



N.E. — Seamer. Egton. Staindale. Pilmoor, near Thirsk. 

 Scarborough Mere. Terrington. Malton. Carlton Bank. 



S.E. — Near Stetton. Newsholrae. Loftsome Bridge, near 

 AVressle. Market A\'eighton. Driffield; Newsham Lake; 

 Cottingham ; Wawne ; Beverley ; Reservoir waterworks, Hull 

 (G. Norman). 



Var. coronatum (Eh'^'ilj) '^'•^■ 



S.W. — Doncaster town water (M. H. Stiles). 



911. Gomphonema Augur Ehrenb. 



[Syn. G. cristatum Ralfs]. 

 Mid A^^ — Staveley Dam, near Knaresborough, 

 N.W.— Cronkley Fell. 

 S.E. — Wressle. 



912. Gomphonema montanum Schumann, 

 ^^ar. commutatum Grun. 



Trans. Y.N.U., igoi (pub. July 1901), Bpt, Series, Vol. 5. 



