Figure 3From: Molecular and ultrastructural characterization of Haplosporidium diporeiae n. sp., a parasite of Diporeia sp. (Amphipoda, Gammaridea) in the Laurentian Great Lakes (USA)Transmission electron micrographs of haplosporidian infecting Diporeia in Lake Superior. (A) Spore with a hinged opercular lid (arrow). (B) Spores exhibiting a thickening of the spore wall at the abopercular end (arrows). (C) Mature spore exhibiting what appears to be thin filaments projecting from a thickening of the cell wall (arrow). Scale bars: A = 2,000 nm, B = 2,500 nm, and C = 500 nm.Back to article page