212 YORKSHIRE NATURALISTS UNION. 



S.E. — Riccall Common. Beverley. Waghen. Market 

 Weighton. Withernsea; Cottingham (G. Norman). 

 1000. Nitzschia apiculata (Greg.) Grun. 



[Syn. Tryblionella apiculata Greg.]. 

 S.E.— Patrington (G. Norman). 



looi. Nitzschia acuminata (W. Sm.) Grun. 



[Syn. Tryblionella aaiminata W. Sm.]. 

 S.W.— Goole (J. Harrison). 



S.E.— Cottingham (G. Norman). Timber Pond, Hull (R. 

 . Harrison). 



1002. Nitzschia circumsuta (Bail.) Grun. 



[Syn. Surirella circumsuta Bail. ; Tryblionella Sctitel- 



lum W. Sm.]. 

 S.W.— Goole (J. Harrison). Askern district (M. H. Stiles). 

 Mid W.— Roundhay (W. B. Turner). 



1003. Nitzschia bilobata W. Sm. 



S.E. — Outlet of Hornsea Mere; Daiiycoats; ditch near 

 River Hull (G. Norman). 



1004. Nitzschia Denticula Grun. 



[Syn. Denticula obtnsa W. Sm.]. 

 Mid W.— Malham Cove (J. M. Kirk). Bingley. Holden Gill, 

 near Keighley. 



N.E. — Beast Cliff. Near Scarborough. 



1005. Nitzschia sinuata (W. Sm.) Grun. 



[Syn. Denticula sinuata W. Sm.]. 



S.W.— Askern district (M. H. Stiles). Ogden Clough. 



Mid W. — Baildon. Holden Gill, near Keighley. Cowside 

 Beck, Arncliffe. 



S.E. — Market Weighton. Cottingham; Beverley Parks (G. 

 Norman). 



1006. Nitzschia paradoxa (Gmel.) Grun. 



[Syn. Bacillaria paradoxa Gmel.]. 

 S.W.— Goole. 

 S.E. — NearStoneferry; Market Weighton Canal (G. Norman). 



Trans. Y.N.U., igoi (pub. July 1901). Bot. Serits, Vol. 5 



