Table 1. Characters and distribution of six species of the genus Hoogenraadia (L – length, W – width). Many of the earlier papers do not report a sample size for number of tests measured – so it is possible that some of these data may be based on a very low sample size.

Species	Size (µm)	Distribution regions and publication	Habitats
H. africana	L = 95–115, W = 47–60	Moyen-Congo (Gauthier-Lièvre and Thomas 1958), Guinea and Equatorial Guinea (Golemansky 1962), Brasil (Leiptniz et al. 2003), China (Qin et al. 2011)	Sphagnum, water, river, forest marsh
H. asiatica	L = 95, W = 70	China (Wang and Min 1987)	Quaternary deposit
H. cryptostoma	L = 130–140, W = 105–110	Moyen-Congo (Gauthier-Lièvre and Thomas 1958), States of Parana, Mato Grosso du Sul, Brasil (Velho et al. 1996, 2000)	Swamp quite shady in the bed of a stream
H. humicola	L = 143–146, W = 96–100	Nepal, Himalayas (Bonnet 1977, 1978), Philippines (Bonnet 1980), Cote d’Ivoire, Africa (Bonnet 1976, 1978), Tonga and Western Samoa Islands (Korganova 1994), China (this paper)	Soils rich in organic debris in forest-gallery backwaters. The ground litter and sublitter horizons of white subtropical soils
H. ovata	L = 60–67, W = 36–39	Cote d’Ivoire, Africa (Bonnet 1976)	Soils rich in organic debris in forest-gallery backwaters
H. sylvatica	L = 82–93, W = 60–70	Punta Lara Province of Buenos Aires, Argentina (Vucetich 1974)	Moss in marginal forest