The appearance of melanic or partially melanicforms in the female has been of very great service, providing as it does a change of ground-colour.
Although a melanic form or other large variation may be of the utmost importance in facilitating the start of a mimetic likeness, it is impossible to explain the evolution of any detailed resemblance in this manner.
Kammerer also finds that those forms which are known to produce melanic races in a state of nature, lend themselves more readily than the others to the success of his experiments.
A curious parallel to the rise of the melanic moths in England is provided by the case of the Honey-creepers or Sugar-birds, in certain West Indian islands.
If it could be shown that these melanic novelties had a definite advantage in the struggle for existence they would provide an instance of evolution proceeding much in the way which Darwin contemplated.
We have next the interesting fact that like our melanic moths the dark form is replacing the "type.
Taking the evidence as a whole, we may say that it fairly suggests the existence of some connection between modern urban developments and the appearance and rise of the melanic varieties.
Excellent illustrations of these two stages in evolution are provided by the melanic varieties of British Lepidoptera.
It is subject to considerable variation, albino females and melanicmales being sometimes found, as well as dwarfed specimens of very small size.
A melanic form of the female sometimes occurs in which the wings are almost wholly dull blackish on both sides.
According to Professor Tower slight increase or decrease in these environmental factors stimulated the activity of the color producing ferments, giving rise to melanic or darker individuals.
For example, hazel eyes are sometimes called gray; they belong however to the melanic pigmented type although the brown pigment may be much diluted and occur mainly around the pupil.
Kane states that in the latter country melanic forms, such as those from Yorks, etc.
Examples of a blackish form have been noted from a wood in West Kent, and these are apparently referable to the melanic ab.
Hodgson has recently obtained several of these melanic specimens in Sussex.
So, also, Argynnis Paphia has a normal female and the dark melanic form var.
In other words the natural examples were more melanic than the others.
Breeding experiments have shown that thesemelanic races are sometimes "dominant" to their parent-stock.
The production of these melanic forms is explained by J.
Melanic or melanochroic varieties are specially characteristic of western and hilly regions, and some remarkable dark races (fig.
The great majority of the human race belong to the melanicor black-haired variety, with a corresponding hue of the skin.
But examples of the xanthous variety present themselves in every dark-haired race, and we gather from Homer, that it was not uncommon among the Greeks of his time to find a melanic family.
Their hair is variouslymelanic and xanthous, always long, and never woolly like that of the Negroes.
From the experience of breeders it would appear that the melanic form is somewhat hardier, at any rate in captivity.
It is well known that in some parts of England the common peppered moth, Amphidasys betularia has been almost entirely supplanted by the darker melanic form doubledayaria.
Sir Henry like a melanic Messiah was crucified as usual, the Hungarian Rhapsody No.
The music is just as infuriated--his body writhes with it--the melanic Messiah crucified by the inappeasable desire to express by visible gestures all that he feels in his heart.
In pigeons, too, if we regard the blue rock as the ancestor of the domesticated breeds, we must suppose that an additional melanic factor has arisen at some stage.
The Silky breed of fowls is characterised among other peculiarities by a remarkable abundance of melanic pigment.
Does the graying of human hair represent an ontogenetically advanced condition of the melanic pigment as yellow represents the embryonic condition?
In these cases the advanced condition in the series of melanic colors appears only late in ontogeny.
The pigment consists of the ordinary melanic granules of a dark sepia color.
In 1906 a melanic specimen was bred from a chrysalis taken from alder in Delamere Forest, Cheshire; this is probably referable to var.
Intermediates occur connecting the melanic form with the type, and sometimes specimens are found of a paler hue than the type.
Repeated examinations in various postures are too tedious in execution, and too offensive to the auscultator, to come into general use in diagnosing the diseases of the Melanic race.
The Melanic race have a much stronger propensity to indulge in the intemperate use of ardent spirits than white people.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "melanic" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: black; colored; dark
