— 174 — 
leviter subangularibus; membrana granulata, granulis in seriebus 
verticalibus 9—10 (in serie unaquaque circiter 5); a_ vertice vise 
elliptic; a latere vise circulares; pyrenoidibus singulis. 
Long. 24 4; lat. 20—23,5 4; lat. isthm. 5,7—6,8 2; crass. 12 pw. 
It is nearest to C. orthopunctatum Schmidle (in Oesterr. botan. Zeit- 
schrift 1895, p. 389, t. XV, f. 15) but is much smaller, has more flattened 
apices, and both the rows of granules and the number of granules in 
each row are much fewer in number. The vertical view is also more 
narrowly elliptical and is never rhomboidal. 
On rocks in riverbed among C. leve Rabenh. 
67. €, Blyttii Wille in Vid.-Selsk. Forhandl. Christiania, 1880, no. 11, 
p. 25, t. 1, f. 7. 
Long. 17 2; lat. 162; lat. isthm. 4,7 p. 
In stagnant water in the jungle. 
Area: Europe, N. America. West, Gentral and East Africa. Madagascar, 
Ceylon, Central. China, New Zealand and Australia. 
Forma minor: Long. 13,5; lat. 13; lat. isthm. 2,8; crass. 
8,5 ps. 
In muddy ricefields. 
68. (€. Reinsehii Archer in Quart. Journ. Micr. Sci., n.s. VI, p. 109. 
C.sp. Reinsch Contrib. Alg. et Fung. Lipsie 1875, t. XVIII, f. 4. 
Membrana cellulz subtilissime punctata. 
Long. 37», lat. 30; lat. isthm. 8; crass. 16y. 
In stagnant water amongst Spirogyra decimina var. 
Area: Europe, N. America, Australia. 
69. €. equatum West & G.S. West, n.sp. (Tab. nostr. Il, fig. 17.) 
C. parvum, paullo latius quam longum, profunde constrictum, 
sinu sublineari et paullo aperto; semicellule transverse oblong, 
marginibus lateralibus rotundatis, apicibus latissimis leviter concavis; 
a vertice visee oblongee, polis rotundatis; a latere visee circulares; 
membrana glabra. , 
Long. 31; lat. 36; lat. isthm. 13,24; crass. 15,3 p. 
Among Utricularia in riverbed. 
70. ©. exiguum Archer in Proc. Dubl. Nat. Hist. Soc. IV, 1864, 
p. 49, t. 1, f. 32, 33; Nordst. in Kongl. Sv. Vet,-Akad. Handl. Bd. 22, 
no. 8, p. 58, t. VI, f. 12. 
Long. 15,3 4; lat 8; lat. isthm. 1,6 w. 
In stagnant water amongst Spirogyra. 
Area: Europe, N. America, W. Africa, Madagascar, Ceylon, New Zealand. 
71. (. Norimbergense Reinsch in Abhandl. Naturhist. Gesellsch. zu 
Niirnberg, Bd. 3, 1866, p. 113, t. IX, f. 2. C. Hammeri Reinsch var. 
