The "deadly" climates, to which so much dread attaches,, generally mean malaria, and the mastery of this disease would.
Much doubt attaches to the origin of the name.
By this time the embryo has all the organs of the adult perfected save only the reproductive; these develop only when the first host is swallowed by the second or final host, in which case the parasite attaches itself to the wall of the alimentary canal and becomes adult.
By this time the alteration of the coast-line and the filling up of the lagoons had probably commenced, and no historical importance attaches to its subsequent fortunes.
A more general and practical interest attaches to the insects which act as their intermediate hosts.