[ 5^7 ] 
horns, or antennae , like thofe of fome teftaceous ani- 
mals, which ferve them for eyes j and thefe antenna 
extend and contract at will, turning to either fide 
alfo. The oefophagus begins at the upper and inner 
part of the mouth, which is a delicate long tube ; 
near which there is another thick one, and made 
nearly like the colon, which leads to a bag, or the 
firft ftomach, which may be likened to the craw of 
a fowl : it is always filled with fucus mixed with 
fand. Sometimes this ftomach is double, or at lead: 
lengthens itfelf confiderably, and the aliment parts 
it, as it were, into two portions. After this craw, or 
ftomach, we find another, which performs the fame 
office with the gizzard of fowls. The membranes 
are thick, and are fet with twelve ftones, or horny 
pieces, of a bright yellow colour, and as tranfparent 
as fine yellow amber, ending in points like a dia- 
mond ; fo that the great fide, or bafis, is fet into the 
membrane of the gizzard as a diamond in its focket : 
others differ in fize, having different figures, that in 
adting all together they may be able to break and 
grind the herbs the animal feeds upon, as well by 
the ftrength of the mufcle or gizzard, which puts 
them into adtion, as by the fituation of thefe ftones, 
aflifted by grains of fand found in it, turning the 
whole by this trituration into a liquor. Afterwards, 
what was thus triturated by the power of the gizzard 
pafles into a third belly or ftomach, which is covered 
by a purple body, refembling the parenchyma of the 
liver, and nearly of the fame confidence : then this 
belly turns into a long tube, which furrounds this 
parenchyma , and is covered in like manner by a very 
fine membrane : it is full of a white liquor, like 
chyle, and goes to difcharge itfelf into another refer- 
4 F 2 voir, 
