ROMAN SNAILS.
ROMAN SNAILS.
OW can you take an interest in snails and slugs?—horrid, slimy, crawling things!" More than once have I heard this kind of remark from youthful lips when I produced my grand old Roman snails and gave them a pleasant time for exercise upon the dewy lawn. Now in my secret mind I think a snail is a wonderfully curious creature, neither ugly nor "horrid"—it is slimy, but about that I shall have something to say later on.
When staying at Box Hill, near Dorking, I often[p. 147] 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. They were kept and fattened in places called "Cochlearia" and made into various "dainty dishes" which the Romans thought quite fit to set before their kings. It is certain that they are very nutritious creatures, and that in times of famine people have supported life and kept themselves mysteriously "fat and well-liking" by resorting to snails and slugs as articles of diet. Indeed I have heard more than once that the famous "Pâte de Guimauve" owes its healing nutritive character to this despised univalve, which is said to enter largely into its composition. I brought several apple snails home with me from Box Hill and kept them for many years, until I really believe the creatures, in a dim sort of way, recognized me as their friend, or at any rate their feeder. I cannot boast, as I believe an American lady is said to have done, that "her tame oysters followed her up and down stairs," but certainly my snails would, when placed upon[p. 148] the lawn, very frequently crawl towards me, and would do so again and again when removed to a distance. As the weather became cold they always hibernated, closing the mouth of the shell with a thin, firm covering, or operculum, of chalk, which, mixed with their slime, made a substance like plaster of Paris. Thus enclosed they would lie as if dead until the warmth of the following spring made them push the door open and come out, with excellent appetites, ready to eat voraciously to make up for their long fast. These Roman snails were quite five inches long when fully extended, and therefore were much larger than our English species; the body was cream colour and the shell a pale tint of buff varying somewhat in different specimens.
These creatures were kept in a fern case with glass top and sides, and it was singular to observe the way in which they could suspend themselves (as shown in the drawing) from the top of the box.
The substance which exists in the caterpillar of the silkworm moth, and which can be drawn out into fine shreds of silk, is very similar to the[p. 149] slime of the snail, only in the latter it is not filiform, but exudes as a liquid and then hardens into a thin layer of silk which is strong enough to support the weight of two of these snails, for, seeing them one day thus suspended, I put them in the scales and ascertained that the weight of the two amounted to 2 ½ ounces.
This mucus forms the glistening, shiny track which the snail leaves behind it, enabling it to glide easily and painlessly over rough substances which would otherwise lacerate its soft body.