of Carchesium, [146];

of Paramecium caudatum, [148], [151];

of Trachelius ovum, [153];

of Stentor, [154];

of S. polymorphus, [156];

of Suctoria, [160] f., [162];

conjugation of, in Dendrocometes, [161]

Megazooid of Vorticella, [157]

Megazoospores, [85]

Meissner, on classification of Spatangoidea, [554] n.