Rallus, Fulica, Ocydromus, &c., Gallinula nesiotis, Tristan d'Acunha, flightless.
On the submarine slopes leading up to isolated volcanic islands angles of 15° to eo are not uncommon, at St Helena the slopes run up to 382° and even 40°, at Tristan d'Acunha to 331°.
The rise resumes a southerly direction and from Ascension to Tristan d'Acunha, the depth is in many places less than r50o fathoms. The soundings of Bruce's Antarctic expedition in the " Scotia " showed that the rise cannot be traced beyond 55° S.
Together with a Journal of a Residence in Tristan d'Acunha (London, 1832); Mrs K.
The most northerly limit of the penguins' range in the Atlantic is Tristan d'Acunha, and in the Indian Ocean Amsterdam Island, but they also occur off the Cape of Good Hope and along the coast of Australia, as well as on the south and east of New Zealand, while in the Pacific one species at least extends along the west coast of South America and to the Galapagos; but north of the equator none are found.