Parvodinium cf. inconspicuum (Lemmermann) S. Carty (2008:106)

Bustamante-Gil, Carolina, Boltovskoy, Andrés, Rengefors, Karin, Tavera, Rosaluz, Amat, Eduardo & Ramírez-Restrepo, Jhon J., 2021, Checklist, new records, and taxonomic annotations of freshwater thecate dinoflagellate (Dinophyceae) in Colombia, Phytotaxa 509 (2), pp. 135-167 : 146-147

publication ID

https://doi.org/ 10.11646/phytotaxa.509.2.1

persistent identifier

https://treatment.plazi.org/id/03D587FF-D21E-9D34-3AD4-DF45EDE7FDDA

treatment provided by

Marcus

scientific name

Parvodinium cf. inconspicuum (Lemmermann) S. Carty (2008:106)
status

 

Parvodinium cf. inconspicuum (Lemmermann) S. Carty (2008:106) . Figure 6 View FIGURE 6

Basyonim: Peridinium inconspicuum Lemmermann (1899:350)

Synonyms:

Peridinium tabulatum var. inconspicuum in Playfair (1913:545)

Peridinium inconspicuum f. marchicum in Lindemann (1920:142)

Peridinium inconspicuum var. excavatum in M. Lefèvre (1932:130)

Dimensions: L: 20–28 µm–Td: 15–21 µm Thickness: 15 µm.

Cell shape: Pentagonal to oval. Angular epitheca, flat or concave antapex ( Fig. 6A View FIGURE 6 ).

Thecal characteristics: Tabulation, Po, X, 4ʹ, 2a, 7ʹʹ, 6C, 5S, 5ʹʹʹ, 2ʹʹʹʹ. Epitheca longer than the hypotheca ( Fig. 6C View FIGURE 6 ), with apical pore and apical groove platelets (Po+X) ( Fig. 6D View FIGURE 6 ). The antapical plates may have little spines.

Cingulum and sulcus: Broad cingulum, without equatorial displacement. The sulcus penetrates in the epitheca and expands broadly to the antapex ( Fig. 6B View FIGURE 6 ).

Ornamentation: Imperceptible with LM.

Locaties: Guatapé and Piedras blancas reservoirs in North-west Colombia.

Comments: Specimen recognition was based on the general shape of the cell, the presence of apical pore complex (APC, Fig. 6D View FIGURE 6 ), and the general characteristics of cingulum and sulcus. These characters follow the descriptions by Carty (2014) and Moestrup & Calado (2018). The size of the specimens ( Table 6) agrees with the measures given by Moestrup & Calado (2018) and are larger than those in Carty (2014). P. incospicuum was not observed under SEM due to the thin theca. Identification performed here must be taken with caution, since detailed morphological characters of cingulum and sulcus were omitted.

World distribution: wide distribution ( Moestrup & Calado 2018).

Kingdom

Chromista

Phylum

Myzozoa

Class

Dinophyceae

Order

Peridiniales

Family

Peridiniaceae

Genus

Parvodinium

Loc

Parvodinium cf. inconspicuum (Lemmermann) S. Carty (2008:106)

Bustamante-Gil, Carolina, Boltovskoy, Andrés, Rengefors, Karin, Tavera, Rosaluz, Amat, Eduardo & Ramírez-Restrepo, Jhon J. 2021
2021
Loc

Parvodinium cf. inconspicuum (Lemmermann) S. Carty (2008:106)

Carty, S. 2008: )
2008
Loc

Peridinium inconspicuum var. excavatum

Lefevre, M. 1932: 130
1932
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