nimals; these little things
when disturbed emitted a brilliant phosphorescent light. We saw scarcely
any gelatinous animals.

July 29.

Caught two small crabs (Nautilograpsus); these species have the power of
swimming by means of the fringe-like fins with which their legs are
provided. Several other crabs were also caught; some with their eggs
attached, and two varieties of shrimp-like animals with eggs. 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. They had a transparent dorsal and two pectoral fins, which
were all I observed, and a long thin snout or beak; the mouth was just at
the end of it, on the top: some of them were thorny on the back; we
caught also some crabs; a very minute blue fish; a black and red insect
resembling a flea; a species of Diphyes; a very small kind of polypus;
and one or two small