Tvi.., 1(11!),! YENDO.—yOTKS ON ALOJE NEW TO ./.l/M.V, JV. 61 



the upper portions of fi-ond. In the essential characters, how- 

 ever, it may be included within the limitation of P. urceolota, 

 which is pretty variable in the external appearance. The speci- 

 mens in my hand aj^ree in every way with the descriptions of 

 tlie typical form as well as the reliable specimens ui my disposal. 



Locality. Otaru Bay(!); Hakodate (Wright, IIakvky. Herb. 

 T.C.D.); Shiokubi near Hakodate (S. Narita, No. 7); Hidaka 

 Prov(!); Enoshima, Sagami Prov. (Prof. K, Okamura); Iwai- 

 jimn, Suwo Prov. (T. Ito, No. 2); Noto Prov. (Prof. T. IcHi- 

 mura); Hagui, Noto Prov. (Prof. K. Okamura). 



Distribution. North Atlantic, from Finmark to Prance and 

 from Greenland to New York; North Pacific, from Vancouver 

 Island to Montcry, Cal. 



Polysiphonia violacea Grev. 



ill Hakv.: Phyc: Brit. PI. 209. — Falkenberg: Rhodomelaccen, 

 p. 115, Taf. I, fig. 17-10.— I)k Toni: Syll. Alg. IV, p. 000. 

 (for other rcferrcuces, see: De Toni, I.e.). 



Another species of Polvsiphonia of very common occurrence 

 in the North Atlantic is to be added to the list of Japanese 

 marine algae. Although its occurrence is known to me in one 

 localty only, more thorough investigation of northern Japan 

 may very likeh' report its wider distribution. 



Locality. Asamushi near Awomori, Mutsu Prov. (N. Tak.\- 

 hashi). 



Distribution. North Atlantic coast of Europe; Mediterranean 

 Sea. 



Polysiphonia cancellata Hary. 



in London Journ. of Bot. III. p. 4-10. — Id.: Nereis Austr. \\. ~A, 

 PI. XV.— Id.: Flor. Tasm. p. 300.— Id.: Synop. Catal. of Austr. and 

 Tasm. Alg. p. xxi.— De Toni: Svll. Alg. I\', p. 928. 

 (for other referrences, see; De Toni, I.e.). 



The specimen from Iragawa and Echigo Province have the 

 number of pericentral cells always 7 and not corticated even at 



