Definition of BEAVER RAT
: a golden Australian water rat (Hydromys chrysogaster) with an elongated flattened body, broad flat head, short limbs, large feet, and a short heavy white-tipped tail.
Fur seals. The loss of furs from other sources was a major incentive leading to massive hunts for various types of seal. The animals were usually clubbed to death when they came ashore to breed. The pattern was familiar - the discovery of large populations of target species, the development of intensive hunting leading to extermination or depletion, the move to a new area. The first phase (1780-1820) was directed at the southern fur seal in many areas of the southern hemisphere and was carried out by sealers from Europe, Russia, Canada and the U.S. http://darwin.bio.uci.edu/~sustain/bio65/lec05/b65lec05.htm
The Australian Mountain Brushtail Possum. We have a lot of these in Wychwood Forest.
The Australian brush tailed possum was introduced into New Zealand in 1837 to establish a fur trade. http://www.doc.govt.nz/conservation/threats-and-impacts/animal-pests/animal-pests-a-z/possums/facts/
Eugène von Guérard, The barter, 1854, oil on canvas.
(Trading possum furs).