1884.] Notes on a New Infusorian. 665 
} passage, and although I have never observed food-particles enter, 
yet judging from the presence within the sarcode of small green 
corpuscles, which I have taken to be of vegetable origin, I sup- 
pose Ctedoctema is a vegetarian. Neither has an anal opening 
been distinctly noticed. Upon several occasions what has ap- 
to be an extrusion of excrementitious matters has taken 
place posteriorly to the oral aperture and back of the ciliary 
comb, but the flow of rejected food-particles brought by the 
adoral currents is so great and so constant, that the question is 
still an open one. 
as ee ee 
As to the fashion of its reproduction: Is it as whimsical in its 
manner of renewing its youth as in its adoral anatomy? In one 
respect, yes. In one respect it goes about that business in a way 
_ ‘surprise the on-looker who has become familiar with every 
style of fission and with several varieties of cystic sacs, and in a 
Way, too, that makes him pause a moment to admire the ex- 
haustless resources of a divine mind. 
That reproduction is by transverse fission goes without saying. 
But if only that, imagine, if you can, what becomes of all the 
~ Semplex ciliary arrangement about the oral region. The creature 
_ lobe fashioned from the posterior half of the mature body must 
have not only a ciliated adoral sinus and the comb-like append- 
age, all of which simple division crosswise would give, but it 
a Somehow obtain that ciliary fascicle at the anterior apex of 
: sinus. The posterior termination of the old Ctedoctema’s 
Sroove has no such tuft to give the new creature, and the latter 
cannot, at least does not, exude sarcode filaments that shall 
into cilia. Then, when and how? Oh, it is so simple and 
50 easy when it is once thought of! But no one ever would 
of it without seeing it. 
| Itis in this way: The cilia of that comb deliberately unite 
. “y and form a membrane. The anterior cilia of the 
| -am unite with it and lengthen the membrane to the front, 
a" newly-formed tissue being widest somewhat in advance of 
center, and narrowing toward both ends. The animal then 
ap» across the middle, forming two Holotrichous creatures, 
: = with a perfectly smooth, unwrinkled membrane vibrating 
— . obliquely along the center of its ventral surface, the 
th 3 , € of this tip-tilting tissue being distinctly and strongly 
3? scheme of classification has a place for them 
