44 | A.C. Stokes—Fresh-water Infusoria. 
inch. Habitat—The surface of submerged twigs and decaying 
remarkably large and, at times, is temporarily conspicuous as 
from the body of the parent, as in figure 4.. After the process 
the tail-like projections are withdrawn and the young differ 
onl 
‘posterior pene continued as a centrally directed, acute, con- 
ical tail-li i i 
fifth the entire length of the body; peristome field occupying 
the anterior one-half of the left-hand border, its margins 
scarcely sigmoid and not Projecting laterally ; the adoral ciliary 
i ort distance posteriorly to the beak ; 
undulating membrane wide, attached to the basal one-half of 
not conspicuously oblique and not surrounding the mouth ;. 
. pharynx short, ciliated; nucleus elongate-ovate, in the anterior 
