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Authority

(Balech) Balech, 1974

Class

Dinophyceae

Order

Peridinales

 

Family

Protoperidiniaceae

Basionym

Peridinium depressum Bailey, Peters, 1928 (partim):63:fig. 17 a-b; non P. depressumBailey

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Synonyms

Peredinium pseudoantarcticum Balech, 1958a:85, Pl. III (53-65)

Description

After Balech, 1976: Length 106-149µm, width 83-100 µm. Very close to P. antarcticum, generally smaller, not so abruptly expanded at the cingulum and more evenly rotund in frontal view. Antapical horns longer, more divergent and subequal in length. Protoplasm generally dark and not contracted. The two lateral sulcal plates relatively shorter. Some other differences in the sulcal plates, small but constant, can be seen in the figures. Angle generally 41-46 degrees.

Comments

This species is rarely reported. www.algaebase.org lists this species as 'p' indicating it has not been subject to any kind of verification.