7° 
Cage ED Xe oa 
Th BOOK of NATUR E; of, 
? 
XIII. 
Of the garden Snail*, the houfe Snail, and that of the fields or path ways. 
LL the external and internal parts of the 
garden Snail, which is a handfome little 
creature, are the fame with thofe of the larger 
Snail, only that they differ a little here and 
there in refpect of ftructure and colour. 
Since therefore the difference is not fo great in 
regard to the reft, I fhall here briefly explain 
the only one that is in the genital parts. ‘The 
aperture of the genital organs, Tab. VIII. 
fig. v. @, is placedin the neck, fomewhat lower 
than it is in the larger Snail. The uterus 4d 
and its ligament c, and the bag which holds the 
glutinous moifture, are like thofe of the larger 
Snail d.. There is, moreover, no difference in 
the chain-like little part e. As I began this in- 
quiry in the month of June, which was indeed 
far advanced, the little eggs f were feen more 
diftiné& in the ovary, near the extreme {piral 
part ¢ of the liver; thefe eggs were, in my 
opinion, to be carried from thence through the 
chain-like little part into the uterus, and to be 
covered all over with the glutinous moifture. 
The purple little knot 4 was of a colour almoft 
approaching to a pale yellow, and contained a 
ftronger fubftance than in the larger Snail. ‘The 
other tube or pipe 2, which in the larger Snail 
opens into the uterus, was in this ftretched out 
further, and the,alcaline little bone was, in a 
fituation directly contrary, thruft into it. In 
the larger Snail, likewife, I have found this tube 
fometimes in the fame fituation. This little 
part was moreover formed, where in its be- 
ginning it is connected with the uterus 2, in the 
fame manner as it is in the larger Snail. The 
imperforated appendage / of the uterus has 
likewife the fame ftructure, but is of a more 
gray colour: the tefticles m likewife, were like 
thofe of the covered Snail, but confifted of 
longer filaments, and were divided only into fix 
veffels. The alcaline little bone 2 was of a ftruc- 
ture entirely different, and wanted thofe four 
little ribs, which I have before exhibited in the 
magnified bone of the larger Snail, but was 
very beautifully decorated with little holes, and 
little prominences that met all together. It 
was however fullas big as the little bone of 
the other Snail, and may likewife be ftretched 
further out of the body, for it ftood on a 
longer little knot, the neck whereof was much 
longer, and likewife of a gray colour. The 
penis go feemed longer and more acute, and I 
have here delineated its only mufcle, Tab. VIII. 
fig. v. p, which draws it in. This was placed 
in the fame manner as in the large Snail. 
Moreover, the common duct g between the 
penis and uterus did not differ in refpect to its 
ftructure. But this Snail twifted about the 
fharp end of its penis in the diffection, and 
curled it into various turns7, which I never 
faw fo clearly and diftinétly in the other Snail. 
There is great difference between the man- 
ner of coitionin the larger Snail and this of the 
garden; the penis of this latter is rolled out fur- 
ther, and is more erected and much longer ; it 
has at its origination the fame glands the skin 
is provided with. ‘The coition of the garden 
Snail continues longer than that of the larger 
Snail. And the whole penis of one Snail is 
put as far as its extremity into the body of 
another ; hence thefe two penis’s are fometimes 
feen, fig. vi. a, twifted together in a very won- 
derful manner. But this winding is not feen 
fo beautifully as I have delineated it, unlefs the 
Snails are drawn a little afunder ; for then is 
perceived the wonderful manner whereby the 
penis of one Snail 4 rolls itfelf round the penis 
of the other, and enters into the uterusc, whilft 
the penis of the latter is, in its turn, twifted 
round that of the former d, and likewife put 
into the orifice of that creature’s uterus ¢. But 
if thefe Snails are pulled away from each other 
at the time of coition, the whole penis’s, long 
as they are, being drawn from the orifice of 
both Snails appear in fight, and each creature 
afterwards turns them in ina wonderful manner, 
and after a fhort time draw them back again 
into the body. 
But as each Snail has its genital parts in the 
right fide of the neck, their heads are applied 
to each other crofs-ways at the time of coi-_ 
tion, and confequently the body and horns of 
each Snail have a contrary fituation at that 
time. For in the body of the former Snail f, 
the opening and divifions of the verge whereby 
it draws the air, are vifible; but in the latter 
Snail nothing is feen of them g, for this Snail 
is placed in a different manner. 
Thefe garden Snails are of the moft common 
kind. ‘Their fhell is grounded on yellow, and | 
is divided lightly by {pecial {mall furrows ; it is 
alfo adorned with tawny or black rings, which 
furround it nearly in the courfe of the fhell’s 
fpiral turns. It is alfo covered with a very 
thin membrane or periofteam, which is black 
or yellow in the fame places where the fhell 
itfelf is painted in that manner, and it likewife 
preferves its colour when the membrane is taken 
from it. 
Each of thefe Snails has alfo four horns, of 
which the two upper ones only have eyes. 
* The fpecies here meant by the author, is the common {mall painted Snail, which we find in hedges. We ufually call the 
larger brown kind the garden Snail, becaufe it is more common with us in” gardens ; but this the author calls the common 
Snail. This lefs being more frequent in the gardens of Holland, is the garden Snail of that country. 
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