NMNH Prorocentrum hoffmannianum type specimen

Description:

Figs. 13-16. . Prorocentrum hoffmannianum sp. nov. FIG.13. The Valve surface is areolated and slightly concave. FIG. 14. The body is ovoid in valve view with the maximum width behind the middle region. The body is narrow at the anterior end. FIG. 15. The cell is round in side view and convex in the middle of the valve. The flagellar pore area is attached to the right valve; surrounded by a distinct flared ridge that is V-shaped, triangular with a complex arrangement of flagellar platelets unequal in size. The intercalary band is smooth. FIG. 16. The areolae are round to ovoid with a smooth margin. Areolae are perforated by oval openings. The flagellar pore (f) (arrow) is surrounded by a flared apical collar (arrow) and is adjacent to an auxiliary pore (a). Scale bars = 200 µm. EMu: SEM NEGATIVES # 27013; SEM STUB # 27; FIELD # 132-88; ACCESSION # 407160; CATALOG # 22; FIGURE # 13.