— 176 — 
77. €. exile West & G.S. West. Dysphinctium exile Turner in 
Kongl. Sv. Vet.-Akad. Hand]. Bd. 25,.no.5, 1893, p. 40, t.1, f. 21*. 
‘Forma curta; cellulis diametro subduplo longioribus. 
Long. 183—15 yz; lat. 7,5—8,5: lat. isthm. 5,9—6,3 p. 
In stagnant water amongst various Alge. 
Area: India. 
78. (. psendaretoum Nordst. in Wittr. & Nordst. Alg. Exsicc. no. 257 
cum fig. xylogr. 1879. 
Forma australis West & G.S. West. C. subarctoum (Lagerh.) Racib. 
forma australis Racib. in Rospraw. Wydz. matem.-przy. Akad. Umiej. 
Krakow. tom. XXII, 1892, p. 363, t. VI, f. 22. 
Long. 13,5—17 4; lat. 8,5—10y; lat. isthm. 7—8,5 yw. 
On rocks in riverbed amongst C. leve Rabenh. and C. Schmidtii n. sp. 
Raciborski’s Australian plant is decidedly a form of C. pseudarctoum Nordst. 
Area: Europe, Australia. 
79. €. pseudoconnatum Nordst. in Vidensk. Medd. f. d. naturh. Foren. 
Kjebenhavn, 1869, no. 14, p. 214, t. III, f. 17. 
Long. 59 #; lat. 42,5 4; lat. isthm. 38 ys. 
In muddy ricefields. 
Area: Europe, N. and 8. America, India, Ceylon, Madagascar.: 
80. €. subturgidum (Turner) Schmidle in Hedwigia, Bd. XXXIV, 
1895, p. 300. Dysphinctium subturgidum Turn. in Kongl. Sv. Vet.-Akad- 
Hand]. Bd. 25, no.5, 1893, p. 40, t. VII, f. 4. 
Ferma minor Schmidle l.c. t. IV, f. 2. 
Long. 96; lat. 524; lat. isthm. 49 p. 
In stagnant water amongst Spirogyra decimina var. 
Area: E. Africa, India, Sumatra, Java, Samoa, Australia. 
Staurastrum Meyen. 
81. S.apiculatum Bréb. in Mém. Soc. Sci. Nat. Cherbourg, IV, 1856, 
p. 142, t. I, f. 23; West & G.S. West in Trans. Linn. Soc. bot. ser. 2, 
V, 1896, p. 254, t. XVI, £. 6. 
Long. sine spin. 21 4; lat. sine spin. 21 4; long. spin. 1,5 ps Tat. 
isthm. 6,5 ps. 
Area: Europe, N. America, India, Japan. 
82. §. bifidum Ralfs in Ann. Mag. Nat. Hist. V, 1845, p. 151, t. XxX, 
f. 3; Lund. in Nova Acta Soc. Scicnt. Upsala, ser. 3, VIII, 1871, p. 62, 
t.IV, f. 2. 
