388 diatomace/k (Comber). \Cymbdla 
10. CYMBELLA Ag. Oonspect. Crit. Diatom, p. 1 (1830); 
Cleve Syn. Navic. Diat. I. in K. Sv. Vet. Ak. Hand], x.wi. 2. 
p. 156 (1894). 
1. C. laevis Naeg. ex Kuetz. Sp. Alg. p. 58 (1849) ; V. Heurck 
Syn. t. iii. f. 7 (1880). p. 62 (1885). 
GOLUNGO Alto.— Rio Muio ; 5 Feb. 185;";. Xo. 147. 
2. C. stauroneiformis Lagerst. Sotv. Diat. Spetsb. in Bih. K. 
Sv. Vet, Ak. I. 14. p. 45. t, I. f. 15 (1873). 
Golungo Alto —Rio Muio ; 5 Feb. 1855. No. 147- 
3. C. lacustris Cleve, he. cit., p. 1G7 (1894). 
Schizonema lacustre Ag. Syst. Alg. p. 10 (1824). Encyonema 
Ungeri Grun. ex A. Schmidt Atlas t. x. f. 63 (1875). 
Golungo Alto.— Rio Muio ; 5 Feb. 1855. No. 147. 
4. C. prostrata Cleve, I.e., p. 167 (1894). 
Monema prostratum Berk. Glean. Br. Alg. p. 15. t. iv. f. 3 
(1833). Encyonema prostratum Ralfs in Ann. Mag. Nat. Hist. 
xvi. p. 111. t. iii. f. 3 (1845). 
PuNGO Andongo. — On roots of Pistin Stratlotes in the Cuige river 
near Quibinda ; March 1857. No. 130. 
Golungo Alto.— Rio Muio ; 5 Feb. 1855. No. 147. 
5. C. turgida Greg, in Quart. Journ. Micr. Sci. iv. p. 5. t. I. 
f. 18 (1856). Encyonema turgidmn Grun. ex A. Schmidt Atlas 
t. x. f. 49-53 (1875). 
Pungo Andongo. — On roots of Pixtia Qtratiotes in the Cuige river 
near Quibinda ; March 1857. No. 130- 
6. C. ventricosa Ag. Consp. Crit. Diat, I. p. 9 (1830)? ; Kuetz. 
Bacillar. p. 80. t, vi. f. 16 (1865). 
Encyonema ventricosum V. Heurck Syn. t. iii. f. 15 17, 19 
(1880), p. 66 (1885). 
Pungo Andongo. — On roots of Pistia Stratiotes in the Cuige river 
near Quibinda ; March 1857. No. 130. 
7. C. turgidula Grun. ex A. Schmidt Atlas t. ix. f. 23-26 (1875). 
Var. inaequalis Comber, var. nov. 
One end is more produced than the other, so that the valve is 
sub-claviform. 
Golungo Alto. — On small shells in ponds near Sange : Dec. 1854. 
No. 146. Rio Muio : 5 Feb. 1855. No. 147. 
11. AMPHORA Ehrenb. in Berlin, Ber. K. Pr. Ak. 1840. 
p. 205; Cleve Syn. Navic. Diat. II. in K. Sv. Vet, Ak. Ilandl. 
xxvii. 2. p. 99 (1895). 
1. A. ovalis Kuetz. Bacillar. p. 107 (1865). 
Frustulia ovalis Kuetz. Synops. in Linnsea viii. p. 539 (1833). 
Var. libyca Cleve, he. cit., II. p. 104 (1895). 
Amphora libyca Ehrenb., I.e., p. 205 (1840). 
Golungo Alto. — On small shells in ponds near Sange : Dec. 1854. 
No. 146. Rio Muio ; 5 Feb. 1855. No. 147. 
