W. WEST AND G. S. WEST: ALGA-FLORA OF YORKSHIRE. 207 



N.E. — Scarboiough Mere. Staindale. Carlton Bank. 

 S.E. — Beverley. Cottingham; River Hull; Market Weighton 

 Canal; Wawne (G. Norman). 



985. Surirella linearis W. Sm. 



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

 near Bingley. CuUingworth. Greetland, near Halifax. Ogden 

 Clough. Cragg Vale, towards Blackstone Edge. 



Mid W, — Adel Bog. Eldwick. Kildwick. Appletreewick. 

 Leathley. Black Hill, near Settle. 



N.W. — Whernside. Micklc and Cronkley Fells. Great 

 Shunnor Fell. Lund's Fell. 



N.E.- — Staindale. Terrington. Carlton Bank. 



S.E. —Cottingham; Beverley Parks; Wawne; Hornsea Peat 

 Deposit; Market Weighton Canal (G. Norman). 

 Var. constricta Grun. 



N.W.— Baugh Fell. 



986. Surirella elegans Ehrenb. 



[Syn. Campylodiscus elegans (Ehrenb.) Rabenh.]. 

 Mid W.— River Skell, Fountain's Abbey (G. Stuart; E. 

 Grove). 



S.E.— Hull (G.Norman). 



987. Surirella robusta Ehrenb. [Syn. S.nobilis W. Sm.]. 

 Mid W. — Cocket Moss, near Giggleswick. Bowland Knotts. 

 N.W.— Mickle Fell. 



N.E. — Terrington. 



S.E. — Hornsea Peat Deposit ; Stoneferry ; Cottingham ; 

 Market Weighton Canal (G. Norman). 

 Var. splendida (Ehrenb.) V.H. 



[Syn. 6". splendida (Ehrenb.) Kiitz.]. 



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

 Horton Park. 



Mid W.— Markington (Rev. J. S. Tute). Harrogate. 



N.E. — Strensall. Scarborough Mere. 



S.E. — Beverley; Spring Ditch ; near Stoneferry ; Market 

 Weighton Canal. (G. Norman). 



