Musk-duck, Australian; large size of male; of Guiana, pugnacity of the male.

Musk-ox, horns of.

Musk-rat, protective resemblance of the, to a clod of earth.

Musophagae, colours and nidification of the; both sexes of, equally brilliant.

Mussels opened by monkeys.

Mustela, winter change of two species of.

Musters, Captain, on Rhea Darwinii; marriages amongst Patagonians.

Mutilations, healing of; inheritance of.

Mutilla europaea, stridulation of.

Mutillidae, absence of ocelli in female.