Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .
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Patrick, R. & Reimer, C. W. (1975). The Diatoms of the United States 2(1). Monographs of the Academy of Natural Sciences of Philadelphia. Pennsylvania. pp. 333-334; 352-353 [pl.27:2a-c]
Pleurosigma salinarum Grun. in Cl. & Grun. 1880; Pleurosigma pusillum Grun. in Cl. & Grun. 1880; Pleurosigma salinarum var. pusilla (Grun. in Cl. & Grun.) Cl. 1894
Valve is slightly sigmoid, lanceolate or linear-lanceolate with rather strongly attenuated, narrow, obtuse ends (which may be sometimes set off from the valve body) and relatively flat surface; axial area and raphe slightly sigmoid, becoming slightly eccentric towards the ends; central area is small, elongate-elliptic or rhombic; transverse striae (22-25 in 10µm) are slightly coarser and somewhat more conspicuous than diagonal striae (which cross at an angle of 46-53°, 25-28 in 10µm); length is 70-130µm, breadth is 13-17µm
specimen recorded is larger than type described