Of the Fauna of this island, about two hundred and sixty species came under our notice: from its immediate vicinity to the continent, it is not wonderful that several large _mammalia_ are to be found. Among these is the _Ursus Americanus_, of the black race; a fox; a stag, which perhaps does not differ from the _Cervus virginianus_, and the common beaver, which feeds on the large leaves of a _Pothos_, said by the inhabitants to be injurious to man. Besides these are observed a small _Vespertilio_ with short ears, a _Mustela_, and a _Phoca_. Of birds we remarked: the _Aquila leucocephala_, _Astur_, _Corvus Corone_ and _Stelleri_, and some varieties of the species _Turdus_, _Sylvia_, _Troglodytes_, _Parus_, _Alcedo_, _Picus_, _Ardea_, _Haematopus_, _Scolopax_, _Charadrius_, _Anas_, and _Colymbus_. _Trochilus rufus_ is not only often found here, but also under sixty degrees of latitude. A small shoal of _Procellaria furcata_ was once driven into the Bay by stormy weather. Of Amphibia, only a small kind of toad is met with. There is no great variety in the kinds of fish, but the individuals are numerous, especially a well-flavoured sort of salmon, and herrings; a _Pleuronectes_ several feet long, and a reddish yellow _Perca_ two feet long and very thick, are extremely abundant. The number of accurately examined _Annulides_ amounts to sixteen, among which are found some of very fine and unknown forms. Most of them belong to the well-known species _Cirrhatulus_, _Arenicola_, _Aceronereis_, _Nereis_, _Aphrodita_, _Serpula_, _Amphitrite_. A _Nereis_ was found swimming on the surface of the water in the middle of the bay, which measured two feet in length, and one inch in thickness; the appendages at its sides resemble round leaves. An _Aphrodita_ several inches long, and very narrow, was not rare. An animal resembling the Amphitrite kind is found enveloped in a transparent mass like jelly. Of Mollusca we observed, a _Limacina_; two _Eolidiae_, some of which have very beautiful colours; a _Laniogerus_; a _Polycera_; four kinds of _Doris_; a _Scyllaea_; 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 _Planariae_, crawls very nimbly. Besides these, a small _Onichidium_, and a new kind of shelled snail.