Gasterosteus leiurus.
Gasterosteus trachurus.
Gastrophora, wings of, brightly coloured beneath.
Gauchos, want of humanity among the.
Gaudry, M., on a fossil monkey.
Gavia, seasonal change of plumage in.
Geese, clanging noise made by; pairing of different species of; Canada, selection of mates by.
Gegenbaur, C., on the number of digits in the Ichthyopterygia; on the hermaphroditism of the remote progenitors of the vertebrata; two types of nipple in mammals.
Gelasimus, proportions of the sexes in a species of; use of the enlarged chelae of the male; pugnacity of males of; rational actions of a; difference of colour in the sexes of a species of.
Gemmules, dormant in one sex.