204 YORKSHIRE NATURALISTS UNION. 



Genus DENTICULA Kiitz., 1S44. 



976. Denticula tenuis Kiitz. 



S.W. — Askern, Cusworth, and Hatfield districts (M. H. Stiles). 

 Crimsworth Dean. 



Mid W. — Holden Gill, near Keigbley. Shipley Glen. Simon's 

 Fell. Ingleton. 



N.W.— Cautley Spout. 



N.E.— Beast Cliff. 



S.E.— Wressle. Wawne (G. Norman). Anlaby Road (Dr. 

 Munroe). 



Var. crassula (Nag.). [Syn. D. cnissiila Niig., 1S49; D. 



inflata W. Sm., 1856J. 



Mid W. — Ingleton. 



N.W. — Great Shunnor Fell. 



S.E.— Newbald (G. Norman). 



977. Denticula elegans Kiitz. 

 S.W. — Ogden Clough. 



' Family TABELLARIE.E. 

 Genus TABELLARIA Ehrenb., 1S39. 



978. Tabellaria fenestrata (Lyngb.) Kiitz. 



S.W. — Cullingworth. Greetland, near Halifax. Skelmanthorpe. 

 Keighley Moor. 



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

 N.W.— Baugh Fell. Mickle Fell. Cotterdale. 

 N.E.— Carlton Bank. 

 S.E. — Skipwith Common. 



979. Tabellaria flocculosa (Roth.) Kiitz. 



S.W. — Bradford. Doncaster town water; Hatfield district 

 (M. H. Stiles). Keighley Moor. Cragg Vale, towards Blackstone 

 Edge. Cullingworth. 



Mid W.— Blubberhouses; Hursforth (W. B.Turner). Black 

 Hill, near Settle. Near Buckden. Cam Fell. Ilkley. Cocket 

 Moss, near Giggleswick. Bowland Knotts. Giggleswick 

 Common. 



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



