Mastogloia cf. grunowii Meister

Park, Joon Sang, Lobban, Christopher S. & Lee, Kyun-Woo, 2018, Diatoms associated with seaweeds from Moen Island in Chuuk Lagoon, Micronesia, Phytotaxa 351 (2), pp. 101-140 : 113

39. Mastogloia cf. grunowii Meister Figs 44a, b

References: Schmidt 1874 –1959, pl. 186, figs 1–7, 11; Voigt (1942), p. 11.

Samples: Moen4_ Halimeda, Moen 5_ Padina

Dimensions: 25.7–26.9 μm long, 11.5–11.8 μm wide; 29 striae in 10 μm.

Comments: The valve morphology of M. grunowii is very similar to M. hustedtii , but these were distinguished by the partectae structure (Vogit 1942). M. grunowii has the presence of stepped partectae, while M. hustedtii gradual partectae. However, the partectae structure might depend on the cell size ( Stephens & Gibson 1980b). Further study is needed to confirm the taxonomic relationship between M. grunowii and M. hustedtii .

Figures

FIGURES 35–47. Twelve diatom species of Mastolgoia. Fig. 35. M. acutiuscula. Fig. 36. M. citrus. Figs 37–39. M. cyclops. Fig. 40. M. subacuta. Fig. 41. M. seychellensis. Fig. 42. M. erythraea. Fig. 43. M. erythraea forma 3. Fig. 44. M. cf. grunowii. Fig. 45. M. decussata. Fig. 46. M. pulchella. Fig. 47. M. graciloides. Scale bar = 10 μm.