Genus Anomoeoneis Pfitz. 1871

Cells solitary, frustules in valve view lanceolate; central nodule small; raphe central, axial area narrow, enlarging at the central area, and dilated on one side; valve surface with transverse striae, puncta in longitudinal rows interrupted by clear lines.

229. Anomoeoneis serians (Brebisson) Cleve (Pl. 6, Fig. 85.)

Cl., 1895, 11, 7.

Boyer, 1916, 80, 17, 13.

Cleve-Euler, 1953b. 197, 918

Navicula serians Kütz., 1844, 92, 30, 23.

Frustulia serians Breb. in Kütz., 1844, 92, 30, 23.

Cells solitary; frustules in valve view lanceolate, acute; central nodule small, raphe central, axial area lanceolate, narrow, enlarged central area, dilated on one side; valve surface with transverse striae, interrupted by clear lines. Length, 85μ.

Distribution. Estuarine, benthic. Australia: Port Hacking, rare; Heron Island. Previously reported from Australia as Navicula serians by Cl. (1895) and Ralfs (1861).

230. Anomoeoneis sphaerophora (Kütz.) Pfitzer (Pl. 6, Fig. 86.)

Pfitz. 1871, 77, 3, 10.

Boyer 1927b, 324.

Cleve-Euler 1953b, 202.

A. sphaerophora (Kütz.) Cl. in Boyer, 1916, 80 40, 2.

Navicula sphaerophora Kütz. 1844, 95, 4, 17.

Cells solitary. Frustules in valve view elliptic-lanceolate with swollen, rounded apices. Axial area linear, central area asymmetric, elongated transversely, almost reaching margin at one side. Striae transverse with faint longitudinal lines. Length, 45μ.