It appears to be common in the neighbourhood of Cape Town, while the recent Antarctic expeditions have shown that it occurs in various localities from the Falkland Islands to the Antarctic circle.
In 1897 the ship " Washington " obtained depths of 2220 fathoms in the middle of the eastern Mediterranean; and the Austrian expeditions in the " Pola " discovered in the " Pola Deep " (35° 44' N., 21 45' E.), south-west of Cape Matapan, a maximum depth of 2046 fathoms. Between these two deep areas a ridge runs in a north-westerly direction 550 fathoms from the surface - possibly a projection from the African plateau.
Dr Natterer, the chemist of the " Pola " expeditions, has expressed the opinion that the poverty of the pelagic fauna is solely due to the want of circulation in the depths.
His ambiguous conduct, however, led to the despatch of two expeditions against the Mirdites and the devastation of their territory.
A portion of one of the expeditions he despatched, under Juan de Ayolas, pushing up the Paraguay, is said to have reached the south-east districts of Peru, but while returning laden with booty, was attacked by the Payagua Indians, and every man perished.
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