Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist Author Lobban, Christopher S. Division of Natural Sciences, University of Guam, Mangilao, GU 96923, USA clobban @ triton. uog. edu clobban@triton.uog.edu Author Witkowski, Andrzej University of Szczecin, Institute of Marine and Environmental Sciences Mickiewicza 16 a, PL 70 - 383 Szczecin, Poland text Micronesica 2023 2024-06-06 2023 2 1 75 journal article 299061 10.5281/zenodo.12118784 2b921c3c-8618-439e-96da-1de9c66a90f9 0026-279X 12118784 Serratifera rhombica S.Sato, Chunlian Li & Witkowski Figs 96, 97 Ref. illus.: C. Li et al. 2018 , p. 81, figs 431–436 Sample: GU52P-9 Dimensions: Length 8 µm, width 2.7 µm, striae 13 in 10 µm Diagnostics: Small, rhomboidal (slightly heteropolar). Spines have accessory spines alongside, but these are not clear in our images.