M
Macmillan Co., [v].
Mactra, [9].
Mark Antony, [5].
Mason-bee, [91].
Mastodon, [12].
Miall, Bernard, [v].
Midge, [12].
Minotaur (see [Minotaurus typhæus]).
Minotaurus typhæus, [247].
Mitre-shell (see [Turritella]).
Mononychus pseudo-acori (see [Iris-weevil]).