Pentapharsodinium dalei Indelicato et Loeblich 1986

A&B = Cells with split theka (arrow=pyrenoid); C&D = Living cysts; E = Cyst in Lugol; F = Newly formed cyst. (A-F DIC). G&H = Cysts in DIC and in epifl. microscope with blue filter combination (observe white fluorescing body )

linked specimen

Synonym(s): Peridinium dalei (Indelicato et Loeblich) Balech 1990

Life-form: Solitary

Size: Length 10-35 µm, width 8-29 µm.

Resting spore: +

Note: Dale (1977) as Peridinium faeroense, Dodge (1982) as Scrippsiella faeroense

Distinctive features: Five cingular plates, thecal plates with pores surrounded with concentric rings, Cyst structure

Similar species: Scrippsiella spp.


Dale, B. 1977a. New observations on Peridinium faeroense Paulsen (1905), and classification of small orthoperidinoid dinoflagellates. Br. Phycol. J. 12: 241-253.

Dodge, J. D. 1982. Marine Dinoflagellates of the British Isles. Her Majesty's Stationery Office, London. 303 pp.

Indelicato, S. R. & Loeblich, A. R., III. 1986. A revision of the marine peridinoid genera (Pyrrophyta) utilizing hypothecal-cingular plate relationships as a taxonomic guideline. Jap. J. Phycol. 34: 153-162.

Lewis, J. 1991. Cyst-theca relationships in Scrippsiella (Dinophyceae) and related orthoperidinoid genera. Botanica Marina. 34: 91-106.

  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

Department of Marine Ecology, Göteborg University, Sweden