Pseudo-nitzschia abrensis

描述：

(A and B) Light micrographs. (C–M) TEM micrographs. (A and B) Whole valves. (C and D) Part of the cell in valve view. (E) Detail of the central part of a valve showing the central nodule and the striae with a row of poroids split into two sectors (seldom three or four). (F) Part of a valve showing the central nodule and the poroid arrangement. (G) Detail of the poroid structure. (H) Central part of a valve. (I) Apical part of a valve showing the proximal and distal mantles. (J) Valve end. (K) Valvocopula. (L and M) Different cingular bands. (A–D, G–L) Strain Ner-J2. (E, F, and M) Strain Ner-J3.