We caught also several transparent bodies, shaped like a balloon (Beroe ?) These consisted merely of a sac.  At the flat end of the spheroid was a small ring of a pink colour, from which ran lines forming the ribs, which supported the sides of the animal.  There were eight of these:  they possessed great irritability, and if the animal was at all injured, a rapid and continued motion was propagated all along them.  Some of these animals were between two and three inches in length, but they were so delicate that it was impossible to examine them, for they fell to pieces directly they were touched.  Only one of these ribs was, at times, affected at the same moment, so that they appeared each to be capable of an independent movement.

We caught also many small insects, and some shrimp-like animals.

The sea was full of some things resembling hairs, but which broke the moment they were touched.

On this evening we placed a large number of acalepha in a bucket, and on agitating the water it became a mass of phosphorescent light.  It is strange that these animals should never emit this light without being irritated.

July 1.  South latitude 35 degrees 51 minutes; east longitude 18 degrees 56 minutes; average temperature of water, 65 degrees.

This day many specimens of different kinds were taken; and amongst them a shellfish (Hyalea) the same as that caught on the 13th November 1837, in south latitude 30 degrees 7 minutes; east longitude 100 degrees 50 minutes 10 seconds.  This fish today put out the apparatus with which it swam.  It consisted of two broad transparent wings, shaped like the first pair of wings of a butterfly, and which it moved in a precisely similar manner.  Its shell was of a delicate pale transparent brown colour, with a jet black spot in the centre. (See Illustration 6 volume 1 Figure 1.) We also caught an animal of a precisely similar form and colour with this, but which was not provided with a shell.

The other specimens were: 

1.  A shell (Janthina)* the same as was caught on November 14 1837, and on several other occasions, with its swimming apparatus attached.

(Footnote.  The corresponding figure, Illustration 9 volume 1, should have been inverted.)

2.  Several of the small shells which resemble belemnites (Creseis) which were first taken on the 14th November 1837.  I this day preserved one of these with its swimming apparatus expanded.

3.  An animal without a shell, which had a sort of transparent horny covering, and when alarmed and not in motion folded itself up.

4.  A tube 3.2 inches in length, perfectly transparent, and swelling out to a little knob at each extremity; but these knobs were of the same colour as the body.

5.  Some delicate white shells (Atalanta) or very hard gelatinous animals, 0.2 inches in length, 0.2 wide, and 0.15 thick; they had three ridges of short spines on them, one down each edge, and one ridge running down the centre of the shell or back.