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Updated: May 22, 2025
Of corals, the variety was very great, as may be judged from the circumstance of our having collected twenty-four kinds within so short a space of time. Fungia is quite at home here; for, independently of F. agariciformis, scutaria, and limacina, a long kind was also found, having, like the two former, only one central cavity; they are found in shallow water among other corals.
When the sea was a little agitated on the Brazilian coast, we frequently saw the large sea-bladder floating on the surface; here we also caught with our net a new species of small Hyaloea, and of the fin-footed Steira, which approaches the nearest to the Limacina.
Of Mollusca we observed, a Limacina; two Eolidiæ, some of which have very beautiful colours; a Laniogerus; a Polycera; four kinds of Doris; a Scyllæa; an animal which deserves the name of Planaria, it was three inches long, two broad, and only half a line thick; on the upper surface, half an inch from the edge, are two projecting eyes; and in the same part, on the surface beneath, the mouth may be perceived; in the middle of this under surface is another aperture, from which the animal, when in a tranquil state, frequently strecthes out four small folds of skin; this creature, like the Planariæ, crawls very nimbly.
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