The Hiflory ^ANIMALS. 
» Brachurus capita rotunda, cor pore ova to in caudam dejinente . 
The Brachurus, with a roundijh head, and an oval body terminating 
in a tail 
This is one of the fmaller Animalcules, but it is extreamly fingular in it’s figure; 
It’s head is little and round, and is feparated from the body by an evident neck; the 
body is largefi: at that part where the neck is inferted, and from thence gradually ta¬ 
pers to the tail, which is not, as in all the other fpecies, affixed to the body ; but the 
body itfelf, as in the ferpent and lizard kind, evidently is continued into, and termi¬ 
nates in it. It is pellucid, but of a fomewhat brownith colour ; the tail is of about 
half the length of the body, and the head is of about one third of it’s bignefs. It’s 
motions are very quick and various 5 a fecond magnifier ffiews it diftin&ly: it’s tail is 
neither forked nor hollowed at the end, but terminates in a point, and feems rather of 
ufe to it in it’s motions, than to fix it. 
It is one of the Animalcules fometimes found in pepper-water, and very frequently 
in an infufion of crefs-feed. 
MACROCERCL 
IMALCULES with tails longer than their bodies. 
Macrocercus corpore rotundo, cauda tenuifima. 
The Macrocercus, with a round body, and a very Jlender tail. 
This is of the number of the fmaller Animalcules. It’s body is of a very regularly 
orbicular figure, diftended, and perfe&ly tranfparent: the fkin is very thin and colour- 
lefs, and the lineaments of the intefiines are very vifible : there is no mark to di- 
ftinguifh the head, but, at that part of the body oppofite to that which goes foremoft 
in the creature’s progreffive motions, there is a tail of at lead four times the length 
of the body, and very {lender; the creature is not very quick in it’s motions. 
It is found in great plenty in an infufion of galangal root, and often in pepper- 
water. 
Macrocercus corpore utrinque anguflato et truncato, cauda longijjima . 
The Macrocercus, with the body Jmall and truncated at each end, and 
with a very long tail. 
This is an extreamly fingular animalcule, and is not of the fmalleft fize. It’s body 
is of a figure approaching to elliptic, but runs out into a kind of neck at each extremity 
much fmaller than the other part, and is truncated at the end : in the truncated end of 
the anterior part is probably fituated the mouth of the animal j from the center of the 
oppofite end there grows a flender tail, equal to at lead: eight times the diameter of 
the body. This is ufually carried ftraight, but the creature has a power of drawing it 
up into a convoluted or fpiral form at pleafure. 
This fpecies is found in infufions of cubebs and ginger; fometimes, but more rarely, 
in pepper-water. 
Macrocercus corpore globofo, cauda craffiore. 
The Macrocercus, with a round body, and fomewhat thick tail . 
This is one of the very fmalleft of the Animalcule clafs. It’s body is perfectly globu¬ 
lar ; it’s {kin fmooth, white, and glofly, but not tranfparent : it’s tail. is about 
twice the length of the body, and is confiderably thick, and in continual motion ; the 
animal itfelf is extreamly brifk and lively. 
It is contained in vaft abundance in the femen of the flag and goat kind. 
Macrocercus 
