“Quo teneam vultus mutantem protea nodo?”
The body is granulous, and a series of pellucid points is sometimes to be observed, as at b b.
Fig. 33, 34, 35, represent this vorticella in three different forms; a, the fore-part; g, the hind-part; c, the fore-part simple; d, the fore-part turned in or doubled.
291. Vorticella Cucullus.
V. elongata, teres, apertura oblique truncata. This vorticella is long, round, the aperture or mouth obliquely truncated.
This being visible to the naked eye, may likewise be ranked among the larger vorticellæ. The body is somewhat conical, of a dingy red colour; its shape has been compared to that of a grenadier’s cap.
292. Vorticella Utriculata.
V. Viridis, ventricosa, productilis, antice truncata. Green vorticella, the belly round and prominent, capable of being lengthened or shortened; the fore-part truncated, much in the shape of a common water-bottle; the neck is sometimes very long, at others, very short, and filled with green molecules.
293. Vorticella Ocreata.
V. subcubica, infra in angulum obtusum producta. This vorticella is somewhat of a cubical figure, the under part bent in an obtuse angle.