Eubagis, sexual differences of colouring in the species of.
Euchirus longimanus, sound produced by.
Eudromias morinellus.
Eulampis jugularis, colours of the female.
Euler, on the rate of increase in the United States.
Eunomota superciliaris, racket-shaped feathers in the tail of.
Eupetomena macroura, colours of the female.
Euphema splendida.
Euplocamus erythrophthalmus, possession of spurs by the female.
Europe, ancient inhabitants of.