United States or Turks and Caicos Islands ? Vote for the TOP Country of the Week !
Hammering, difficulty of. Hancock, A., on the colours of the nudibranch Mollusca. Hands, larger at birth, in the children of labourers; structure of, in the quadrumana; and arms, freedom of, indirectly correlated with diminution of canines. Handwriting, inherited. Handyside, Dr., supernumerary mammae in men. Harcourt, E. Vernon, on Fringilla cannabina. Hare, protective colouring of the.
Nott and Gliddon, on the features of Rameses II.; on the features of Amunoph III.; on skulls from Brazilian caves; on the immunity of negroes and mulattoes from yellow fever; on the deformation of the skull among American tribes. Novara, voyage of the, suicide in New Zealand. Nudibranch Mollusca, bright colours of. Numerals, Roman. Nunemaya, natives of, bearded.
The Cucumaria is a low radiate animal the sea-slug a far higher mollusc; and every organ within him is formed on a different type; as indeed are those seemingly identical gills, if you come to examine them under the microscope, having to oxygenate fluids of a very different and more complicated kind; and, moreover, the Cucumaria's gills were put round his mouth, the Doris's feathers round the other extremity; that grey Eolis's, again, are simple clubs, scattered over his whole back, and in each of his nudibranch congeners these same gills take some new and fantastic form; in Melibaea those clubs are covered with warts; in Scyllaea, with tufted bouquets; in the beautiful Antiopa they are transparent bags; and in many other English species they take every conceivable form of leaf, tree, flower, and branch, bedecked with every colour of the rainbow, as you may see them depicted in Messrs.
Alder and Hancock's unrivalled Monograph on the Nudibranch Mollusca. And now, worshipper of final causes and the mere useful in nature, answer but one question, Why this prodigal variety? All these Nudibranchs live in much the same way: why would not the same mould have done for them all? What a waste of power, on any utilitarian theory of nature!
But many brightly-coloured, white, or otherwise conspicuous species, do not seek concealment; whilst again some equally conspicuous species, as well as other dull-coloured kinds live under stones and in dark recesses. So that with these nudibranch molluscs, colour apparently does not stand in any close relation to the nature of the places which they inhabit.
Word Of The Day