Thalassiosira nanolineata (A. Mann) Fryxell & Hasle, 1977

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 : 16

publication ID

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

DOI

https://doi.org/10.5281/zenodo.12581899

persistent identifier

https://treatment.plazi.org/id/03C287AA-FFF3-0B08-FF35-7E45FD32FAF0

treatment provided by

Felipe

scientific name

Thalassiosira nanolineata (A. Mann) Fryxell & Hasle
status

 

Thalassiosira nanolineata (A. Mann) Fryxell & Hasle Figs 104–106 View Figures 98–106

Ref. illus.: Mann 1925, p. 68, pl. 14, fig. 4; Fryxell & Hasle 1977 p. 32, figs. 74–80; Sar et al. 2002 Table 1 View Table 1 ; Y. Li et al. 2013, p. 99, figs 89–94; J.S. Park et al. 2016, p. 414, fig. 28

Samples: GU44Z-15, GU52P-9

Dimensions: 12.8–19.8 diam., areolae 8–9 in 10 µm

Diagnostics: Areolae linear, not radial, single row of fultoportulae around the margin, their external part ending in a cuplike structure with a central post. Rimoportula inserted between two fultoportulae (rather than replacing one). Two central fultoportulae.

Comments: Although the areolar density is lower than most records (Y. Li et al. 2013 the exception), these specimens seem to agree with the modern concept of the species originally described from the Philippines by Mann (1925). The surveys of Thalassiosira diversity in Argentina ( Sar et al. 2002), Guangdong Province, China (Y. Li et al. 2013), and South Korea (J.S. Park et al. 2016) are all very helpful in identifying the species here.

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