56 The BOOK of 
Among thefe appendages, at the bottom of 
the mufcles of the abdomen, appeared an in- 
teftine; which, without any winding, ran ftrait 
from the ftomach towards the tail; and where- 
of I have here delineated, fig. 111. ¢, only a 
fmall part, fomewhat augmented beyond its 
natural fize. It was full of gray excrements, 
which, when viewed with a microfcope, con- 
fitted almoft entirely of fmall chryftals, which 
were regular grains of fand. ‘Fhe ftomach 
alfo contained partly the fame fubftance, and 
partly fome little fibrous membranes. Its up- 
per part is placed near the back, its Inferior 
in the thorax. It is in ftruéture partly mem- 
branous, and partly cruftaceous : its bories are 
very beautiful. Above, below, and on each 
fide, it has many mufcles, by which its parts 
are connected and moved. On the infide, in 
the cavity of the ftomach, Ifaw three diftin& 
teeth, of a moderate fize, each of which was 
divided into feveral fmaller teeth: the teeth 
were of a pale lemon colour, but it was changed 
by degrees into a dark green, in that part where 
they terminated in little teeth or divifions. 
Two other teeth-like little parts, which were 
uneven and notched, adhered alfo to the cavity 
of the ftomach. ‘This obfervation is certainly 
very worthy of notice, that the little creature, 
living like a Snail in the fhell, is furnifhed 
with a double apparatus of teeth; for it has 
two teeth forward in the extremity of the 
mouth, and five others in its ftomach. 
Where the inteftinum rectum or ftraight gut 
begins, I faw the cecum or blind gut mode- 
rately long, and beautifully twifted, Tab. XI. 
fic. 1. f, which I firft took for the extreme 
appendage ; but as I found it loofe and dif- 
engaged in all the Hermits I diffected, I there- 
fore believe it is the cecum. I fhould not, 
however, venture to affirm this for certain, 
becaufe I have not diftinctly feen its blind or 
imperforated extremity; for all its contents were 
coagulated and feparated by the fpirit of wine, 
and the place wherein the inteftine itfelf was 
feen, appeared fo tranfparent, that I could not 
obferve that particularity. Befides, it was not 
like the appendages on account of its contents, 
nor was it inferted in the middle, but fome- 
what on one fide of the inteftinum rectum. 
In the abdomen, on each fide of the appen- 
dages, there were two fmall genital veffels, 
fig. vi. aa, whereof that in the right fide was 
the larger: both were, in many places, beau-. 
tifully twifted into fpiral windings 64, and they 
proceeded thence curled, till they at lait ter- 
minated in a narrow tube e. It appeared like- 
wife how thefe, in their end, pierce or perforate 
the laft pair of legs, fig. 11. gg, in the middle of 
the fifth joint, which refembles a bone or fhell 
with a confiderable tube, fig.v1.d. ‘This I have 
delineated larger than it naturally is. ‘This per- 
foration appeared to me very plain, when I 
{queezed the contents through it, and feparated 
and unbound the tube itfelf. In it was a fub- 
ftance of a whitith colour, and when examin- 
ed with a elafs, it feemed all to confift of very 
NAT. URS; 
{mall regular little parts, like round globules. 
I could not difcern whether thefe were the 
rudiments of eggs, or the globules of a male’s 
femen ; fincee in all the ten that I diffected, 
the fame ftructure was obfervable in the geni- 
tal vefiels. The windings of thefe fpermatic 
ducts were likewife connected by means of 
blood veffels ; and when I opened them, they 
were ten inches and an half long. ‘Thefe are 
all the entrails that I faw in the abdomen; 
only that in the bottom of the belly were 
placed feveral mufcles, towards which the 
nerves iffued from the fpmal marrow. Part of 
the tendons of thefe mufcles terminated in the 
point, fig. 11.2, above defcribed; where the 
creature is fixed inits skin or fhell, fo that with. 
their affiftance, the Hermit may draw in and 
hide itfelf in the fhell. Between the appen- 
dages I faw many little drops of fat floating, 
which refembled the oil boiled out of the fat 
of Whales {wimming in water. 
If the thorax be opened above in the back, 
the firft part that is there feen is the ftomach, 
with its mufeles, which is of a remarkable 
fize in this creature, and is really fituated un- 
der the back, though I have, for method fake, 
defcribed it in treating of the abdomen. Be- , 
hind this ftomach, above the place where the 
inteftine arifes, is fituated the heart, Tab. XT. 
fig. vitt. aa, which refembles an irregular little 
piece of flefh, and becomes fomewhat pointed. . 
It is of a ruddy colour there, but underneath 
and at the fides it is white. I perceived four 
veffels 4 iffue from it above, and two c below ; 
and one of the two lower ones was larger and 
thinner than the other; which however con- 
fitted interchangeably of fomewhat thicker 
fides, and fent off fome vafcular fprigs d. On 
the outfide of the furface of the heart I ob- 
ferved 4 feveral little holes ; but on the infide 
the heart was fibrous, and furnifhed with its 
pillars or columns like the human heart. I 
difcovered only one venticle in this creature, 
as is the cafe in the generality of Fifth; but I 
could not fee its auricle. Moreover, I obferved 
how the whitith veffels in this heart, were dif- 
tributed up and down through the body, efpe- 
cially towards the branchie or gills, one of 
which I have reprefented magnified e. 
There are here, as I have obferved, eleven 
branchie or gills on each fide of the body, fo 
that they make twenty-two in all. ‘They are 
fituated at the fides of the thorax, between 
thefe long cavities, which there form the arti- 
culations of the legs. They are of a pyrami- 
dal figure, rifing from a broad bafis f; and 
ending ina fmall pointed topg. Each of them 
is, at the upper end, divided into two other 
parts, each of which confifts of a great num- 
ber of fmooth or plain lamelle 4. or layers, 
which are applied clofe to each other like the 
leaves of a book, and each of them is divided 
from the others very deeply, which makes 
indeed a very agreeable fight. The ftruGure 
of the branchie or gills is partly cartilaginous 
and partly membranous ; and. their blood- 
‘ veffels 
Of, 
