Hippopodius, [307]

Hippospongia, [221]

Holectypoidea, [558]

Holophytic, Algae and Fungi, zoospores of, [5];

nutrition, [37];

Flagellates, [113]

Holopodidae, [592]

Holopus, [588], [589], [594]

Holothuria, [570];

H. nigra, [561] f.;