l68 YORKSHIRE NATURALISTS' UNION. 



S. W. — Manningham Park, Bradford. Cullingworth. Keighley 

 Tarn. Cragg Vale, towards Blackstone Edge. 



Mid W. — -Adel Bog. Eldwick. Wigton Moor. Earl's Seat. 

 Whernside. Cocket Moss, near Giggleswick. Bolton Woods. 

 Bog two miles south of Clapham. Penyghent. Harrogate 

 (G. Norman). 



N.W. — Mickle Fell. Penhill Beacon. Near Keld. Cronkley 

 Fell. Up to 2 200 ft. in Swaledale. Bog near Widdale Beck. 



N.E. — Carlton. Lockton. Cleava Cliffs, north of Scalby. 

 Terrington. 



S.E. — Tickton. Near Meaux Abbey. Beverley. Skipwith 

 Common (Rev. W. Fowler ! ). Cottingham ; Spring Ditch ; 

 Skirlaugh ; Reservoir waterworks, Hull (G. Norman). 



838. Navicula Tabellaria (Ehrenb.) Kiitz. 



[Syn. Pi?inularia Tabellaria Ehrenb.]. 

 Mid W. — Eldwick. Cocket Moss, near Giggleswick. Bog two 

 miles south of Clapham. 

 N.W.— Great Shunnor Fell. 

 N.E. — Lockton. Saltersgate (G. Norman). 



Var. acrosphaeria Rabenh. 



[Syn. Pliimdaria acrosphceria Rabenh.]. 

 Mid W.— Eldwick. 

 N.W.— Birkdale Tarn Moss. 

 N.E. — Terrington. 

 S.E. — Peat Deposit, Filey. 



839. Navicula gibba (Ehrenb.) Kiitz. 



[Syn. Pinnularia gibba Ehrenb.]. 

 S.W.— Cullingworth. 



Mid W. — Boston Spa. Wigton Moor. Eldwick. Horsforth. 



N.W.— Mickle and Cronkley Fells. Great Shunnor Fell. 

 Great Sleddale. 



N.E. — Lockton. Terrington. Pilmoor, near Thirsk. Salters- 

 gate (G. Norman). 



S.E. — Risby Pond ; Haltenprice ; Cottingham (G. Norman). 



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



