of Proteomyxa, [88] f.;
of Pseudospora, [89];
of Myxomycetes, [90] f.
Hypolytus peregrinus, [262], [271] n.
Hypophare, [210]
Hypostome, [250]
Hypotrichaceae, [137], [138] f., [158] n.
Ianthella, [220]
Ichthyophtheirius, [137];
noxious parasite of fish, [152]