Where these were abundant the sea was very luminous.

Four or five of these were of a brilliant prussian blue colour, with silver-coloured spots on the back; others were of a very delicate pink colour; the tentaculae of both of them were of a delicate prussian blue colour.
We also caught a species of small Janthina, nearly resembling those we had found before, but they were larger; moreover the species of barnacle attached to them was totally different from any we had before found, as if each species of nautilus had its own kind of parasite.

This is worthy of attention.
August 8.
We found a species of Halobates which swam rapidly with the short legs foremost, and the foremost legs appeared to be furnished with a fringe to give them that power.

The colour of the legs, dark prussian blue; body of a silver colour in front, with a prussian blue colour behind; under part of the body, near the tail, three consecutive striae of a silver colour, separated from one another by a line of prussian blue.

I have never seen this animal before.
August 9.
Caught two or three small insects, somewhat resembling a bug, of a dirty brick colour and several minute species of Diphyes and small jellyfish.
August 19.
Caught a small Janthina nearly resembling those we had formerly seen, also a small crab, two new species of gelatinous animals, and a Velella.
August 20.
Several fish, resembling an eel in shape, were caught today; they were of different sizes, and some of them gave a slight shock on being touched.
They were marked across the back with alternate striae of silver, and various shades of brown and black, though there were scarce two marked exactly alike.