The smoky mouse (''Pseudomys fumeus'') is a species of

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...

in the family Muridae native to southeastern Australia. It was first described in 1934 and its species name is

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

for "smoky". As its name suggests, it is a grey-furred mouse, darker grey above and paler smoky grey below. Mice from the Grampians are larger and a darker more slate-grey above. It has a black eye-ring and dark grey muzzle. The feet are light pink, and the ears a grey-pink. The tail is longer than the mouse's body, and is pink with a brownish stripe along the top. Mice from east of

Melbourne Melbourne ( ; Boonwurrung/Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a met ...

average around 35 grams and have 107 mm long bodies with 116 mm long tails, while those from the Grampians are around 65 grams and have 122 mm long bodies with 132 mm long tails. The smoky mouse is currently rated as "vulnerable" and appears to be declining in numbers in the wild. Its range is fragmented and it appears to be extinct in some areas such as the

Otway Ranges The Great Otway National Park is a national park located in the Barwon South West region of Victoria, Australia. The national park is situated approximately southwest of Melbourne, in the Otway Ranges, a low coastal mountain range. It conta ...

(not seen since 1985) and

Brindabella Ranges The Brindabella Range, commonly called The Brindabellas or The Brindies, is a mountain range located in Australia, on a state and territory border of New South Wales and the Australian Capital Territory (ACT). The range rises to the west o ...

(not seen since 1987). It is found in the Grampians,

East Gippsland East Gippsland is the eastern region of Gippsland, Victoria, Australia covering 31,740 square kilometres (14%) of Victoria. It has a population of 80,114. Australian Bureau of Statistics2006 Census Community Profile Series: East Gippsland (St ...

and far southeastern New South Wales (including Kosciuszko and South East Forest National Parks and Buccleugh State Forest). There are fewer than 2500 individuals left in the wild and all extant populations appear to be in decline. Vegetation changes, as well as feral cats, foxes and dogs appear to be the main causes. There is an active recovery plan for the species, and there is active predator monitoring in the Yowaka and Waalimma sections of the South East Forest National Park. In February 2020 it was reported that researchers from

Charles Sturt University Charles Sturt University is an Australian multi-campus public university located in New South Wales, Australian Capital Territory and Victoria. Established in 1989, it was named in honour of Captain Charles Napier Sturt, a British explore ...

, found the death of nine smoky mice was from "severe lung disease" caused by smoke haze during the 2019–20 Australian bushfires that contained PM2.5 particles coming from bushfires 50 kilometres away. It was feared that the Kosciuszko National Park population had been extirpated as a result of the bushfires, but individuals were rediscovered in June 2020. In other languages it has been called ''fausse souris fuligineuse'' (French), ''raton bastardo fumoso'' (Spanish), or ''koonoom'' (?).

References

* {{Taxonbar, from=Q1765364 Pseudomys Mammals of New South Wales Mammals of Victoria (Australia) Rodents of Australia Endangered fauna of Australia Mammals described in 1934 Taxonomy articles created by Polbot