Holozoic, [35] f.;
Flagellates, [113];
Dinoflagellates, [131]
Holt, [311] n.;
on burrowing habits of Strongylocentrotus lividus, [541] n.
Homaxonic (= symmetrical about a centre along an indefinite number of equivalent axes), [76]
Homocoela, [185] f.
Homoeonema, [294]
Homostichanthus anemone, [383]
Honey-bees, alleged spontaneous generation of, [42]