South latitude 27 degrees 4 minutes; east longitude 47 degrees 38 minutes 15 seconds.
A species of animal (Alima hyalina ?) was caught resembling a scorpion, having six legs, three on each side; the first pair of legs were provided with claws, like a lobster; its tail exactly resembled that of a scorpion; the sac or bag near the extremity of the tail was of a light red colour, and it tried to strike with its tail, as if for the purpose of stinging.

Eyes pale blue, and prominent; body nearly diaphanous, with pale red spots.
Total length 0.33 inches.
Length of body 0.20 inches.
Breadth across from eye to eye 0.13 inches.
Breadth of body 0.14 inches.
Several of the animals which I supposed to be the Velella of Lamarck, and some of which had been caught on the 11th of November 1837 were also found today.

Caught also a species of animal which I had found on October 22 1837, in south latitude 37 degrees 44; east longitude 38 minutes; and again on November 12 1837, in south latitude 30 degrees 11 minutes; east longitude 100 degrees 31 minutes 30 seconds.

It resembles in shape and size a large grape.
Extreme length 0.5 inches.
Breadth 0.45 inches.
Total circumference round broadest part 1.30 inches.
Colour brownish blue; but there were round it twenty very narrow brownish yellow stripes, equidistant from each other, and not quite reaching either extremity of the animal.
June 16.

South latitude 28 degrees 46 minutes; east longitude 42 degrees 3 minutes.
We caught an animal this afternoon somewhat resembling a shrimp (Erichthus vitreus)* covered with a shield: we had caught a similar one on the 12th of November 1837.