The larger tentacula are shaped like the trunk of an elephant, and their extremity is furnished with a very delicate organ with which they can catch anything, and, if touched, they instantly turn some of these tentacula, which they have the power of moving in any direction, to the point so touched.

They are not electrical: the lateral bags have a slight tinge of a bright amber colour.

These animals sustain themselves in the water by means of the little bag marked (a) in the figure, which floats on the surface full of air, they there swim in the manner before described.

I afterwards observed very minute globules, or lumps, in the long silk-like tentacula.

When expanded these were very distinct.
Latitude 29 degrees 26 minutes south; longitude 101 degrees 32 minutes east.
We caught several small shells (Janthina exigua) this afternoon: Illustration 9 represents one of them, with the string of air bubbles attached, by means of which they swim on the water.