Ref ID : 4879
K.A. Mikrjukov; Revision of the Genera and Species Composition of Lower Centroheliozoa I. Family Heterophryidae Poche. Arch.Protistenk 147:107-113, 1996
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A revision of the centroheliozoan family Heterophryidae on the base of the external envelope structure is performed. The genus Cienkowskya is shown to have no centroheliozoan affinities and is transferred from this group; it is heliozoa incertae sedis. The genus Heterophrys is shown to be heterogeneous. H. fockii with a tangential orientation of organic spicules is transferred to the genus Sphaerastrum Greeff, emend., while the other species with radial spicules remain in the genus Heterophrys. A new species H. febvre-chevalierae is described. Emended diagnoses for genera Heterophrys and Sphaerastrum and species H. myriopoda, H. marina and S. fockii and a key for the family Heterophryidae are suggested.