Epithemia Bréb., 1838. 
turgida v. granulata (Kiitz.) V. Heurck, Atlas, Pl. 31, f. 5, 6, 1880. 
(H. granulate Kiitz., Bacill., p. 35, Pl. 5, f. 20, 1844.) 
sorex Kiitz., Bacill., Pl. 5, f. 12, 1844. 
gibba v. ventricosa (Kiitz.,) V. Heurck, Atlas, Pl. 32, f. 4, 5, 1880. 
(K. ventricosa Kiitz., Bacill., Pl. 30, f. 9, 1844.) 
argus Kiitz., Bacill., Pl. 29, f. 55, 1844. 
zebra (Khr.) Kiitz., Bacill., Pl. 5, £. 12; Pl. 30, f. 5, 1844. 
gibberula v. preducta Grun., in V. Heurck, Atlas, Pl. 32, f. 11-13, 1880. 
var. perpusilla Playf., Biol Richm. R., p. 117, Pl. 4, f. 30, 1914. 
Family NITZSCHIACEZ. 
Nitzschia Hess., Brit. Frw. Alg., 1845, em. Grunow 1880. 
(Bacillaria Gmelin, 1788; Nitzschiella Rabh., 1864.) 
paradoxa (Gmel.) Grun., in Van Heurck, Atlas, Pl. 61, f. 6, 1880. 
(Bac. paradoxa Gmelin.) 
var. mejor Van Heurck, Atlas, Pl. 61, f. 7, 1880. 
var. perpusilla Playf., Biol. Richm. R., p. 120, PI. 5, f. 5, 1914. 
palea (Kiitz.) W. Sm., Brit. Diat., 11, p. 89, 1856. 
var. debilis V. Heurck, Atlas, Pl. 69, f. 28, 29, 1880. 
var. fouticola, Grun., in V. Heurck, Atlas, Pl. 69, f. 15, 20, 1880. 
subtihs Grun., Arcot. Diat., p. 95, 1880. 
var. palacea Grun., tbid., p. 95, 1880. 
acicularis W. Sm., Brit. Diat., i, p. 43, Pl. 15, f. 122, 1853. 
reversa W. Sm., ibid., 1853. 
Lorenziana Grun., Arct. Diat., p. 101, 1880. 
vermicularis (Kiitz.,) Grun., Arct. Diat.. p. 91, 1880. 
var. tvialis Playf., Biol. Richmond R., p. 121, PL. 5, £. 6. 1914. 
var. minuta Playf., 2bid., Pl. 5, f. 7, 1914. 
obtusa v. scalpelliformis Grun., Arct. Diat., p. 92, 1880. 
var. nang Grun., in Van Heurck, Atlas, pl. 67, f. 3, 1880. 
longissima (Bréb.) Ralfs, in Pritch. Infus., p. 783, 1861. 
var, Closterium (W. Sm.) V. Heurck, Atlas, Pl. 70, f. 5, 7, 8, 1880. 
-Hantzgschia Grun., in Cleve & Grun., Arcé. Diat., p. 103, 1877. 
amphioxys (Ehr.) Grun., ibid., 
(Nitz. amphioxys W. Sm., Brit. Diet., i, p. 41, Pl. 13, £. 105, 1853.) 
var. elongata Van Heurck, Atlas, pl. 56, f. 7, 8, 1880. 
Tryblionella W. Smith. ) 
Hantzschiana v. minor Play!., Biol. Richm. R., p. 121, Pl. 5, £8, 1914. 
var. Victorie (Grun.) Playf., bid., Pl. 5, f. 9-11, 1914. 
var. calida (Grun.) Playf., 2bid., Pl. 5, f. 12, 1914. | 
yar. ovate (Lagerst.) Playf., /.c., Pl. 5, f. 13, 1914. 
var. australica Playf., ibid., p. 122, Pl. 5, f. 14, 1914. 
cruciata Playf., ibid., Pl. 5, f. 15, 1914. 
Family SURIRELLACEE. 
Cymatopleura Turpin, 1827. 
solea (Bréb.) W. Sm., Brit. Diat., 1, Pl. 10, f. 78, 1853. 
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t By printer’s error ‘‘var. sta/is,” lc. 
