Biddulphiella tridens (Ehrenberg) Ashworth & Sims

Lobban, Christopher S. & Witkowski, Andrzej, 2023, Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist, Micronesica 2023 (2), pp. 1-75 : 6

publication ID

https://doi.org/ 10.5281/zenodo.12118784

DOI

https://doi.org/10.5281/zenodo.12581846

persistent identifier

https://treatment.plazi.org/id/03C287AA-FFF9-0B02-FF35-7CDCFEA4FB47

treatment provided by

Felipe

scientific name

Biddulphiella tridens (Ehrenberg) Ashworth & Sims
status

 

Biddulphiella tridens (Ehrenberg) Ashworth & Sims Figs 26–29 View Figures 26–31

Syn.: Biddulphia tridens (Ehrenberg) Ehrenberg

Biddulphia tuomeyi (J.W. Bailey) Roper

Ref. illus.: Schmidt et al. 1874–1959, pl. 118, figs 1–7 and pl. 119, figs 1–6; Peragallo & Peragallo 1897 –1908, pl. 94, fig. 2; Hustedt 1927 –1930, fig. 491; Navarro 1981, fig. 15; Lobban & Jordan 2010, fig. 5q, 5r (all as B. tuomeyi ); López Fuerte et al. 2010, pl. 12, figs 6–7; Ashworth et al. 2013, figs 5b, 5i; Sims et al. 2023, fig. 13

Samples: GU7Y-4

Dimensions: Length 42–63 µm, width 27–30 µm

Diagnostics: Deeply sculpted valve in girdle view, central dome flanked by two smaller ones that abut or are themselves separated from the tall pseudocellus-bearing horns on the two poles. Many spines on the domes and the central dome with two rimoportulae with very long external tubes. The deep grooves (sulci) ( Fig. 29 View Figures 26–31 ) were used to distinguish Biddulphiella from Biddulphia ( Sims et al. 2023) .

Comments: Differs from Biddulphia biddulphiana (J.E.Smith) Boyer ( Navarro & Lobban 2009, figs 28–31) in the more elongate, rostrate valve outline and number of domes. VanLandingham (1968, p. 562) commented on which specific epithet had priority and listed the extensive synonymy under B. tridens .

Kingdom

Chromista

Phylum

Ochrophyta

Class

Bacillariophyceae

Order

Ardissoneales

Family

Ardissoneaceae

Genus

Biddulphiella

Loc

Biddulphiella tridens (Ehrenberg) Ashworth & Sims

Lobban, Christopher S. & Witkowski, Andrzej 2023
2023
Loc

Biddulphia tuomeyi (J.W. Bailey)

Roper 1859
1859
Loc

B. tuomeyi

Roper 1859
1859
Loc

Biddulphia tridens

Ehrenberg 1841
1841
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