scales, [190], [191];

M. vespertilio, [720]

Malthidae, [720], [718]

Malthopsis, [720]

Mantle, [42]

Marcusenius, [551]

Marsupial pouches, [416]

Mastacembelidae, [716]

Mastacembelus, [717];

M. maculatus, [717]