British species, [111]

Migrations, of Trematode-larvae, [5], [52], [63] f.;

of Cestode-larvae, [5], [74], [83], [87]

Millson, on Oligochaeta, [368], [387]

Millsonia, [382] f.

Milne-Edwards, on Polyzoa, [475]

Mimicry, in Polychaeta, [293] f.

Mimosella, [518], [532];

movement of zooecia, [481]

Molluscoidea, [475]