, ae A Short Explanation 
c The body of the Snail which creeps out from 
thence, marked with black points or fpots. 
d The two obtufe horns, in which the eyes are 
are placed, alfo the upper, lower, and 
{maller horns. 
FbsGo Vs 
The garden Snail. 
a The aperture of the genital parts, placed a 
little lower in the neck than in the common 
Snail. 
56 The uterus. 
¢c The ligament of the uterus. 
d The bag which holds the glutinous moifture. 
e The chain-like little part. 
f The little legs in the ovary. 
g The extreme fpiral part of the liver. 
hb The purple little knot. 
i The other fmall tube of the purple little part. 
& The connexion of the purple little knot with 
the uterus. 
I The blind appendage of the uterus. 
m The tefticles 
n The alkaline little bone. oo The penis. 
p The mufcle which draws the penis. 
g The common duct between the penis and 
uterus. 
r The acute end of the penis, curled into vari- 
ous windings. 
JRM Ge NT: 
Two garden Snails, in the act of coition. 
a The penis of each wonderfully twifted to- 
gether. 
b The penis of one of the Snails infinuating 
itfelf into the 
¢ Uterus of the other. 
d The penis of the other Snail, in like man- 
ner, infinuating itfelf into the 
e Uterus of the former Snail. 
jf The aperture and divifions of the verge, as 
feen in this Snail, at this time. 
g Atthe fame time-nothing is feen of the verge 
in the other Snail. 
EI G..- VII. 
The naked houfe Snail. 
a The upper horns, which have eyes. 
64 The lower horns, which are much {maller. 
cc The velabrum, or eminence which is fixed 
to. the body. 
d The aperture in the neck, through which 
the genitals are extended. 
e The aperture of the velabrum, by which the 
Snail breathes. 
Ff The prominent part of the tail, like a cock’s 
comb. 
EVE Gr. Vill 
The Snail ‘fone. 
a The hollow like Snail ftone. 
of the TABLES. 
& The furface of it, interwoven as it were 
with veflels. 
FIG. IX. 
The genital parts of the houfe Snail. 
a The three apertures of the genitals, in the 
neck, which unite in one paflage on the 
outfide. 
6b The penis. 
d The purple bag 
e A {mall filament, which reaches from the 
penis to the ligament of the uterus. 
J ff The ligament of the uterus. 
&g& The {mall eggs fticking in the womb. 
bb Abag, containing a glutinous matter. 
27 A chain-like little part. 
k The ovary. 
cccc The uterus. 
TAB. IX. 
FIG. I. 
The field or path-way Snail. 
a Its larger horns. 
6 The aperture of the velabrum, or the emi- 
nence, by which it breathes, and difcharges 
its excrements. 
c ¢ Glandulous triangular protuberances, which 
rife obliquely from the body. - 
dd The glofly red verge which furrounds the 
body. 
FIG. IL 
The internal parts of the field or path-way Snail, 
a The mouth and palate. 
66 The larger horns drawn in. 
c The fkin of the head divided. 
d The gullet. e The brain. 
f The beginning of the ftomach. 
gg The falival veffels. 
bb The glandular corpufcles, from which the 
falival veffels arife. 
z The ftomach covered with veffels. 
kk The inteftines. LIE The liver. 
m The large gall-bag, which difcharges itfelf 
into the inteftines. 
a The aperture of the genitals in the neck. 
o The penis. ; 
fp The little tube which opens from the penis, 
into the uterus. 
q The purple bag. 
r The little tube of the purple bag, which is 
inferted in the penis. 
s The ftrong and thick origin of the uterus. 
t The flenderer part of the origin of the uterus. 
uuuu The uterus itfelf. 
x xx Whitith veffels, which connect the 
uterus and its ligaments. 
yy The glutinous bag. 
z The chain-like little tube. 
a The {mall gut. @ The ovary. 
y The heartin its place. 22 The alkaline bag. 
F1G., 
a 
