OBSERVATIONS ON THE PROTOZOA 
347 
throughout. Pharynx and stigma present. Two pairs of longi- 
tudinal folds or striations in the pellicle. Flagella unequal, one 
as long as the body, the other about half as long, both being 
directed in advance. A conspicuous dense disc (or sphere) 
near the center of the body, with two small irregular granules, 
one apparently within and the other close beside the disc (para- 
mylon and pyrenoids?). Not metabolic. Motion a rapid for- 
ward spiral. Length of bell without flagella 28 microns. 
Professor Walton says of this: “An extremely interesting 
form. If you can find the number of chloroleucites and be sure 
that the dagella are always of unequal length, I am inclined to 
think it may prove to be something quite new.” Unfortunately 
I have never found but one specimen. 
Subphylum INFUSORIA 
Class I Ciliata 
Coleps hirtus Ehr. 49, figure 56. 
This form is too common to need description here. The fig- 
ure is that of a peculiarly flattened individual which ap- 
peared normal from the broad view. It was active and normal 
in its actions. In spite of its “ armor 'plates” Coleps appears 
to be an easy prey to the impaling spines of the Heliozoa, and 
I have found one side of the little infusorian being digested 
and absorbed by Actinophrys while the outer side continued its 
customary activities of waving cilia. Reagents of any kind 
are apt to cause Coleps to disintegrate almost instantly, sug- 
gesting that the armor plates are not hard or dense. On the 
other hand the voracious mouth, which seems at once to bore, to 
tug, and to suck, sometimes provides a way of escape from other 
enemies. In one case the digestive processes of a Stent or were 
not so rapid as the means an ingested Coleps applied to its own 
rescue. It was an amusing sight to see the tiny Coleps bore its 
way to freedom through the ectoplasm of its captor. 
*Ckenici species. 50, figure 56. 
Elongate, contractile, uniformly ciliated, with longer ante- 
rior cilia. Mouth terminal, usually closed (not made out in 
this specimen). Nucleus moniliform. A row of fourteen vacu- 
oles placed longitudinally. Size 200 microns. Found with de- 
caying vegetation. But one specimen was found, which disin- 
tegrated with the application of osmic acid. 
