MURIDAE RECORDED FROM VICTORIA 
79 
Teeth. — Heavier, but otherwise similar to those of last species. 
Dimensions of Skin . — Head and body, 188 mm.; tail, 154 mm.; hind 
foot, 43 mm.; ear, 30 mm. 
Dimensions of Skull . — Back of parietals to tip of nasals, 38 mm. ; nasals, 
16 X 4-8 mm.; interorbital breadth, 6 mm.; palate length, 23 5 mm.; 
breadth inside M 2 , 3 5 mm.; breadth outside M 2 , 9 mm.; palatal foramina, 
10 5 mm.; diastema, 118 mm.; upper molars, 8 8 mm. 
Type Locality . — Darling River, New South Wales. 
The House-building Rat has apparently long been extinct 
in Victoria. Krefft, writing in 1864, says: 
“This animal has become exceedingly rare, and is only found in 
localities where it is not disturbed by sheep or cattle. I do not think 
it occurs south of the Murray, where, according to the Aborigines, it 
was found in large numbers years ago. The hut-like mounds of dry 
sticks which this rat uses in the construction of its habitation, may be 
frequently met with on the Murray Plains, but they are either unin- 
habited or occupied by Hapalotis api calls, a species always at war with 
the larger, and apparently stronger, though not so numerous, Hapalotis 
conditor.” 
The rat still lives and builds its “wurlies” in South and 
Western Australia. Troughton (loc. cit.) gives a full account 
of its habits in those localities in his monograph of the genus. 
Genus NOTOMYS Lesson 1842. 
The genus contains a group of the Australian Jerboa Mice 
having a glandular organ in the gular area. They are com- 
paratively small, and have lengthened hind feet on which the 
pads are reduced to three or four. The tail is long, with 
lengthened hairs towards the tip. Gland on throat sharply 
defined by silvery hair. Skull rounded and without ridges ; 
anterior edge of zygoma root deeply concave and with a pro- 
jecting point above. Teeth with no anterio-internal cusp on 
molars. 
Notomys mitchelli (Ogilby). 
Dipus mitchelli Ogilby, Trans. Linn. Soc. Lond., xviii, p. 130, 1841. 
Notomys mitchelli Thomas, Ann. Mag. Nat. Hist., (9), viii, p. 539, 1921 ; 
id., Ann. Mag. Nat. Hist., (9), ix, p. 315, 1922; Wood Jones, Rec. 
Sth. Aust. Mus., iii, p. 3, 1925 ; id., Mamm. Sth. Aust., iii, p. 339, 
1925 ; Brazenor, Mem. Nat. Mus., Melb., No. 8, p. 78, 1934. 
More than 30 specimens of Mitchell’s Jerboa Mouse col- 
lected by Brando wski are in the National Museum, but no 
examples have since been recorded. They agree with Ogilby ’s 
material in the Australian Museum, Sydney, and were taken 
very close to the type locality. 
