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Hedge-warbler, young of the. Heel, small projection of, in the Aymara Indians. Hegt, M., on the development of the spurs in peacocks. Heliconidae, mimicry of, by other butterflies. Heliopathes, stridulation peculiar to the male. Heliothrix auriculata, young of. Helix pomatia, example of individual attachment in. Hellins, J., proportions of sexes of Lepidoptera reared by.
When staying at Box Hill, near Dorking, I often saw the great apple snail, Helix Pomatia, which is only found on chalk soils, and is supposed to have been introduced by the Romans, from the quantities of their empty shells found with Roman remains in all parts of England.
The bones, he suggested, may often have been rolled in the beds of such streams before they reached their underground destination. To the same agency the introduction of many land-shells dispersed through the cave-mud was ascribed, such as Helix nemoralis, H. lapicida, H. pomatia, and others of living species.
Out of the hundred shells twenty-seven recovered. The presence of an operculum seems to have been of importance, as out of twelve specimens of Cyclostoma elegans, which is thus furnished, eleven revived. It is remarkable, seeing how well the Helix pomatia resisted with me the salt-water, that not one of fifty-four specimens belonging to four other species of Helix tried by Aucapitaine recovered.
And I found that several species did in this state withstand uninjured an immersion in sea-water during seven days: one of these shells was the Helix pomatia, and after it had again hybernated I put it in sea-water for twenty days, and it perfectly recovered.
Longicorn beetles, difference of the sexes of, in colour; stridulation of. Lonsdale, Mr., on an example of personal attachment in Helix pomatia. Lophobranchii, marsupial receptacles of the male. Lophophorus, habits of. Lophorina atra, sexual difference in coloration of. Lophornis ornatus. Lord, J.K., on Salmo lycaodon. Lory, King; immature plumage of the. Lory, king, constancy of.
And I found that several species did in this state withstand uninjured an immersion in sea-water during seven days: one of these shells was the Helix pomatia, and after it had again hybernated I put it in sea-water for twenty days, and it perfectly recovered.
One shell, the Helix pomatia, after having been thus treated, and again hybernating, was put into sea-water for twenty days and perfectly recovered. During this length of time the shell might have been carried by a marine country of average swiftness to a distance of 660 geographical miles.
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