Smith—Monograph of Scenedesmus. 
455 
“Var. cellulis oblongis angustioribus et in unam seriem 
ordinatis nec cruciatim nec alternatim; cum 2-3 dentibus 
parvis.” 
GEOGRAPHICAL DISTRIBUTION 
EUROPE. Austria-Hungary (Hansgirg, 1886, 1892; Pascher, 
1906). England (G. S. West, 1899, 1904B; W. West, 1892B; West 
and West, 1897B, 1901B). Germany (Schorler, 1900; Volk, 1903, 
1905). Ireland (W. West, 1892A; West and West, 1902B). Scot¬ 
land (W. West, 1903; West and West, 1906A, 1909B). 
AFRICA. “Libuna River (West and West, 1897A). Madagas¬ 
car (West and West, 1895). Lake Nyassa (G. S. West, 1907). 
Lake Tanganyika G. S. West, 1907). 
ASIA AND OCEANIA. Australia (Hardy, 1906; G. S. West, 
1909A). Burma (West and West, 1907). Ceylon (West and West, 
1901A). Java (Bernard, 1908). Siam (West and West, 1902). 
AMERICAS. Trinidad (G. S. West, 1904A). United States 
(Collins, 1909; Setchell and Gardner, 1903). 
POLAR AND SUB-POLAR REGIONS. Faeroes (Boergesen, 
1899B). Greenland (Boergesen, 1896). 
Var. lunatus West and West. (PI. XXVI: Fig. 24.) 
West and West, 1895, p. 82; PI. V, Figs. 11-12. Balsamo, 1900, 
p. 266. Brunnthaler, 1913, pp. 166, 170. Chodat, 1913, p. 20. 
Var. cellulis 2-4 in seriem rectam dispositis, cellulis me- 
dianis ellipticis rectis, terminalibus extrorsum lunatis, apici- 
bus cellularum 3-denticulatis. Long. cell. 9.5-11 ju; lat. 
cell. 3.5—4 /X. 
Known only from West and West’s discovery of the va¬ 
riety in Madagascar. 
13. S. aculeolatus Reinsch. (PI. XXVI: Fig. 22.) 
Reinsch, 1877, p. 238; PI. VI, Figs. 1-2. Lagerheim, 1883, p. 65. 
de Toni, 1889B, p. 565. Lemmermann, 1893A, p. 41. de Wilde- 
mann, 1893B. Balsamo, 1900, p. 266. Chodat, 1902, p. 215. 
Migula, 1907, p. 656. Brunnthaler, 1913, pp. 166, 170; Fig. 8. 
“S. cellulis oblongo-cylindricis utroque polo obtuso- 
rotundatis, spinulis compluribus brevioribus absque ordine 
dispositis armato. Longit. fam. 4-cellularis 19.6 y. Latit. 
cellularum 13-16.8 y. Specimina singula observata inter 
Spirogyram.” 
