26. Enchelis Punctifera.
E. viridis, subcylindracea, antice obtusa, postice acuminata, [Plate XXV.] Fig. 8. Green enchelis, subcylindric, the fore-part obtuse, the hinder part pointed.
It is an opake animalculum, of a green colour; there is a small pellucid spot in the fore-part a, in which two black points may be seen; a kind of double band, c c, crosses the middle of the body. The hinder part is pellucid and pointed; an incision is discovered at the apex of the fore-part, which seems to be the mouth. When in motion, the whole of it appears opake and green. It is found in marshes.
27. Enchelis Deses.
E. viridis, cylindrica, subacuminata gelatinosa. Green, cylindrical, gelatinous, the end somewhat pointed.
The body is round, the colour a very dark green, so that it is quite opake; the fore-part is bluntly rounded off, the hinder-part is somewhat tapering, but finishes with a rounded end. From its opacity, no internal parts can be discovered; there is a degree of transparency near the ends. It is exceeding idle, moving very slowly; to be found, though rarely, in an infusion of lemnæ.
28. Enchelis Similis.
E. obovato opaca, interaneis mobilibus. Enchelis, of an egg-shape, opake with moveable intestines.
It is an opake body, with a pellucid margin; both extremities are obtuse, but the upper one much more so than the under one; it is filled with moveable spherules. Its motion is generally quick, either to the right or the left; it is probably furnished with hairs, because, when moving rapidly, the margin appears striated. It is found in water that has been kept for months.