RT Journal Article SR Electronic(1) A1 Bradley, D. E.YR 1964 T1 A Study of the Mallomonas, Synura and Chrysosphaerella of Northern Iceland JF Microbiology, VO 37 IS 3 SP 321 OP 333 DO https://doi.org/10.1099/00221287-37-3-321 PB Microbiology Society, SN 1465-2080, AB Species of the genera Mallomonas, Synura and Chrysosphaerella have been investigated in relatively few countries, and a study of their occurrence in Iceland provides additional information on their distribution. Several new species of Mallomonas (M. calceolus, sp.nov.; M. pugio, sp.nov.; M. clavus, sp.nov., M. maculata, sp.nov.) and one of Chrysosphaerella (C. multispina sp.nov.) were found together with numerous species already described. In this paper, observations with both light and electron microscopes are given in detail for the new species. Electron micrographs of the scales and bristles of known species are also shown and, where appropriate, compared with those of the new ones. Three out of the four new species of Mallomonas fitted into the existing taxonomic groups, one belonging to the Tripartitae, one to the Planae and one to the Torquatae. The fourth was added to a group already containing three isolated species. The new Chrysosphaerella species is of particular interest because only a few species have so far been described in this genus., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-37-3-321