194 YORKSHIRE NATURALISTS' UNION. 



Var. ventricosa Giun. 

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



Var. undulata (W. Sm.) Ralfs. 



[Syn. H'imantidmm undulatuin ^V. Sm.]. 

 S.W.— Roche Abbey (M. H. Stiles). Cullingworth. 

 Mid W.— Blubberhouses (W. B. Turner). Hawksworth 

 (E. Hunter). Whernside. Adel Dam. Baildon. 

 N,E. — Goathland. Near Scarborough. Saltersgate (G. Norman.) 



945. Eunotia Faba (Ehrenb.) Grun. 



[Syn. Hitnantidium Soleirohi Kutz.]. 

 S.W.— Kildwick. Ogden Clough. 

 Mid W.— Ingleton. 

 N.W.— Cotterdale. 

 N.E.— Ingleby. 



646. Eunotia Veneris Kiitz. [Syn. E. incisa Greg.]. 

 S. W.— Ogden Clough. Near Shipley. 

 Mid W. — Giggleswick Common. 

 N.W.— Mickle Fell. 

 N.E.— Carlton Bank. 

 S.E. — Riccall Common, Skipwith Common. 



947. Eunotia praerupta Ehrenb. 

 Var. bidens (Ehrenb.) Grun. 



[Syn. E. bidens (Ehrenb.) W. Sm.]. 

 Mid W. — Holden Gill, near Keighley. 

 S.E. — Riccall Common. Newsholme, near Howden. 



948. Eunotia monodon Ehrenb. 



S.W.— Roche Abbey (M. H. Stiles; J. N. Coombe). 

 N.W.— Mickle Fell. 



949. Eunotia robusta Ralfs. 

 Var. tetraodon V.H. 



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

 N.E.— Strensall. Lockton. 



950. Eunotia triodon Ehrenb. 

 Mid W.— Roundhay (VV. B. Turner). 



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



