114 YORKSHIRE NATURALISTS UNIOX. 



Genus GONIUM Miiller, 1773. 



542. Gonium pectorale Miiller. 

 S.^^^— Goole (H. F. Parsons). Wortley, near Leeds (W. B. 

 Turner). CuUingworth. 



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

 N.W. — Great Shunnor Fell. 



N.E. — Strensall ; Gormire (W.B.Turner). Scarborough Mere. 

 S.E. — Kirkham Abbey (J. M. Kirk). Brackenholme. 

 Gexls PANDORIXA Bory, 1824; em Pringsh., 1869. 



543- Pandorina morum (Miill), Bory. 



S.W.— Goole. Askern. Rawcliffe(H. F. Parsons). Bradford. 

 Frizinghall. 



Mid W. — Markington ! (Rev. J- S. Tute). Ronibald's Moor. 

 Bride Cross, above Farnley Moor. Bramhope; York (J. Abbott). 



N.W.— Cronkley Fell. 



N.E. — Gormire (W. B. Turner). Pilmoor, near Thirsk. 

 Stokesley. Scarborough Mere ! (G. !Massee). Saltburn. 



S.E. — Brackenholme. Market Weighton. Hornsea Mere. 

 Genus STEPHANOSPH.KRA Cohn, 1852. 



544. Stephanosphaera pluvialis Cohn. 



Mid W. — Baildon ^loor Only obtained once, from a rain- 

 pool in a hollow of grit-rock. 



Genus CHLAMVDOMOXAS Ehrenb., 1833. 



545. Chlamydomonas Pulvisculus (Miill.), Ehrenb. 

 S.W. — Frizinghall, abundant in pools (viii. 1896). 

 N.^V.— Cowgill Wold Moss, Widdale Fell. Lund's Fell. 

 N. E. — Terrington. 



546. Chlamydomonas multifilis Ehrenb. 

 S.W. — Near Doncaster. Frizinghall, abundant. 



This species has not previously been recorded from the 

 British Isles. 



(iExus H.E.MATOCOCCUS Ag., 1828. 



547. Hsematococcus lacustris (Girod.), Rostaf. [Syn. 



Volvox lacustris Girod. ; Chlaviydococciis pluvialis 

 (Flot.), A. Br.]. 



Trans. Y.X.U,, 1899 (pub. July 1901). Bot, Series, Vol 5. 



