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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 jellyfish.

Caught also this day the lower portion of a species of Diphyes, the same I had found on the 13th of November 1837 in south latitude 30 degrees 7; east longitude 100 degrees 50 minutes 10 seconds. The total length of this was 0.5 inches. The tail of the largest when examined in a microscope precisely resembled in appearance the fin of a fish. I did not examine the smaller one.

This animal was very sensitive, more particularly about the opening of the entrance. We caught today the lower part of the species of Diphyes which we had found on the 13th November 1837, in 30 degrees 7 minutes south latitude, in the Indian Ocean. This animal is thus distributed over a wide range. We also found a very minute species of the animal similar to one which we caught on July 1st 1840.

Secondly, a Salpa, of the class which lives apart and has fine long fibres projecting from the hinder part of the body. Thirdly, a small animal, nearly allied to the Diphyes, the soft part of the body, which contains the tube for receiving nourishment, having no air-bladder. Fourthly, a small Beroe, having the power of drawing in its fins. Fifthly, a very small Porpita.

We also caught a minute fish, 0.6 inches in length; a minute species of nautilus, blue, marked with striae, or grooved, and thus different from what we caught on the 15th; a shrimp-like species of animal 0.5 inches in length; the lower part of a species of Diphyes, which had been caught on the 12th and 13th of November 1837; some minute animals, appearing to be the young of the larger species of Velella which we had taken; they were, like this animal, at first blue, but turned red soon after being put into spirits; also a very minute pale blue species of nautilus, I think the young of the kind we caught on the 15th July.

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.