XIII. TRICHODA.

Vermis inconspicuus, pellucidus, crinitus. An invisible, pellucid, hairy worm.

172. Trichoda Grandinella.

T. sphærica, pellucida, superne crinata. Spherical, pellucid, the upper-part hairy.

A most minute pellucid globule, the intestines scarce visible, the top of its surface furnished with several short bristles, which are not easily distinguished, as the animalculum has a power of extending and withdrawing them in an instant. It is found in pure water, and in infusions of vegetables.

173. Trichoda Cometa.

T. sphærica, antice crinita, globulo appendente. [Plate XXV.] Fig. 46 and 47. Spherical, the fore-part hairy, with an appendant globule.

It is a pellucid globule, replete with bright intestines, the fore-part furnished with hairs, the hind-part with a pellucid appendant globule.

174. Trichoda Granata.

T. sphærica, centro opaco peripheria crinita. [Plate XXV.] Fig. 48. Spherical, with an opake center, the periphery hairy.