Description
(Caullery & Mesnil, 1899) Luhe, 1900 Spores are oval with the anterior end having an orifice and appearing to be slightly flattened in the light microscope (Figs. 5,7,8). The orifice is covered by a hinged lid. Spores range in size from 2.8-12 X 4.3-15 1-Jm. Tubules or solid filaments ( 42-80 nm diameter) or ribbons (ca . 8 0- 1 4 0 nm wide) , formed in the epispore cytoplasm , are wrapped around the spore wall with at least some of them being fused in part to the spore wall. These wall ornaments are not organized into prominent extensions visible in the light microscope. There are 15 named species (as revised above), found as parasites of marine molluscs, decapod Crustacea, an ascidian urochordate, a crinoid echinoderm, polychetes , and a nemertean worm as well as freshwater oligochetes and snails.
Type species
Haplosporidium scolopi (Caullery & Mesnil, 1899} Luhe, 1900
Figures
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Raw text
(Caullery & Mesnil, 1899) Luhe, 1900 Spores are oval with the anterior end having an orifice and appearing to be slightly flattened in the light microscope (Figs. 5,7,8). The orifice is covered by a hinged lid. Spores range in size from 2.8-12 X 4.3-15 1-Jm. Tubules or solid filaments ( 42-80 nm diameter) or ribbons (ca . 8 0- 1 4 0 nm wide) , formed in the epispore cytoplasm , are wrapped around the spore wall with at least some of them being fused in part to the spore wall. These wall ornaments are not organized into prominent extensions visible in the light microscope. There are 15 named species (as revised above), found as parasites of marine molluscs, decapod Crustacea, an ascidian urochordate, a crinoid echinoderm, polychetes , and a nemertean worm as well as freshwater oligochetes and snails.