130 YORKSHIRE NATURALISTS UNION. 



Genus DICTVOSPH.KRIUM Niig., 1849. 



627. Dictyosphaerium Ehrenbergianum Niig. 

 S.W.— Bradford. 



Mm W.— Baildon. Cam Fell. 

 N.W.— Mickle Fell. 

 N.E. — Scarborough Mere. Strensall. 

 S.E. — Hornsea Mere. Newsholme. 



628. Dictyosphserium pulchellum Wood. 



S.W. — Near Bradford, in profusion amongst Sc€?iedes/nus 

 bijugatus. 



Mid W. — ^Cocket Moss, near Giggleswick. 

 N.W.— Cowgill Wold Moss, Widdale Fell. 

 N.E. — Terrington. 

 S.E. — Skipwith Common. 



629. Dictyosphaerium oviforme Lagerh. 



Mid W. — Abundant in pond near Boston Spa (iv. 1897). 



N.E. — Pilraoor, near Thirsk. 



This species has not previously been recorded for the British 



Isles. 



Genus INEFFIGIATA West & G. S. West, 1897. 



630. Ineffigiata neglecta West & G. S. West, 1897. 

 S.W. —Near Bradford. 



Mid W. — Malham. Markington ! (Rev. J. S. Tute). Wigton 

 Moor. Bog, two miles south of Clapham. Roundhay Park, 

 Leeds. Staveley Dam, near Knaresborough. 



N.E. — Strensall. Pilmoor, near Thirsk. Malton. 



S.E. — Riccall Common. 



Sub-Family Gl/eocystid^, 

 Genus OOCARDIUM Nag., 1849. 



63!. Oocardium stratum Nag., 1849. [Syn. ? Litho- 

 nema Crustacea Hass. ; Rividaria Crustacea Carm.]. 

 Mid W. — On stones in stream, Gordale, abundant. Austwick. 

 Genus NEPHROCVTIUM Niig., 1849. 



632. Nephrocytium Agardhianum Niig. 

 N.W.— Mickle Fell. 



Trans. Y.N.LI., 1899 (pub. July 1901). Bot, Series, Vol. 5. 



