A smooth pellucid animalculum, and shaped like a crescent.
186. Trichoda Trigona.
T. convexa, antice ciliata, postice erosa. [Plate XXV.] Fig. 63. Convex, the fore-part ciliated, the hind-part as it were gnawed off.
This is a triangular animalculum, a little convex on both sides, the fore-part acute, the hind-part a little broader. A notch is seen at a, in the hind-part; b, the ciliated fore-part; c, a tube.
187. Trichoda Tinea.
T. clavata, antice crinita, postice grossa. This is clubbed, the fore-part hairy, the hind-part large.
This animalculum is round, not very pellucid, narrow in the fore-part, and resembling an inverted club; it is also like some of the tinea.
188. Trichoda Nigra.
T. ovalis compressa, antice latior crinita. Oval, compressed trichoda, the fore-part broader and hairy.
The body is opake, when in violent motion it is black, when at rest one side is pellucid; the middle of the fore-part is furnished with little moveable hairs. It was found in salt water.