Of Anmalciila in Fluids. 
and C unites with D fo clofely, that they then appear 
as at A D, fig= 285. Thefe increafed eminencies, form 
the feparated lips of this animalcule, and the regular mo¬ 
tion of the hairs with which they are adorned, obliges all 
minute bodies, at a fmall diftance from thefe lips, to 
enter into its mouth. Part of which is alio as ttrongly 
repelled, as it was greedily fwallowed. 
All the protuberances A, B, C, D, of fig. 284. or 
the two of fig. 285. contradfing themfelves a little to¬ 
wards E, difcover a fort of crown, with four points, re- 
prefented at fig. 286. which are prefently covered again 
with thefe eminencies, and then expofed again, and fo 
on. 
In each of thefe figures, at E, is feen a regular pul¬ 
iation, fuppofed to be its heart; it feems to be embraced 
by two lobes, that feparate and join alternately, which 
probably are the lungs; from thefe proceed two little 
ligaments at G, towards the inteftines, whofe periftaltic 
motion is alfo very regular. 
The tail of this animalcule appeared fometimes round 
and clofe, at other times open, when two little points, 
as at H, fig. 284. might be feen. 
One of thefe animalcules had four of thofe fharp points, 
fig. 287. placed two on each fide the anus 3 between 
which a long tail I L is protruded, and drawn in again 
with great fwiftnefs: the end L, in feme of thefe animal¬ 
cules, appeared forked, as fig. 285. the tail can be en¬ 
tirely drawn into the body, at which time the rings that 
compofe it, Aide one over the other, and caufe it to be¬ 
come opake. 
Their eggs are frequently feen fattened to their breech 
by fmall threads 3 fome of the females carry but one, as 
at M, fig. 289. others two, fig. 285. and fome others fix, 
fig. 286. but this is feldom, and then alfo they are final- 
ler. 
