REVISION OF AUSTRALIAN JERBOA MICE. 
Fifteen specimens examined ; Champion Bay, King George’s Sound, 
Ongerup, unspecified localities, W.A. ; (?) Ooldea, S.A. Nat. Mus. Nos. 
R 1765 6, R 1 106, C5-9. 
Except for a few specimens no precise localities are pre- 
served, the majority being labelled “West Australia.’’ A 
specimen from the West Australian Museum collection is reputed 
to be from Ooldea, South Australia, but it is possible that this 
may be in error. 
N. gouldi stands out from among the remainder of the genus 
by reason of its larger size and cool colour, and by its slender 
feet, on which the hallux is very much smaller, comparatively, 
than that of any other species. 
Notomys macrotis Thomas. 
Hapalotis macrotis, Gerrard, Cat. Bones Mamm. B.M., p. 171, 1872 
(nom. nud.) ; Gould, Mamm. Aust., Introd., p. XXXV, 1863 (nom. 
nud.). 
Notomys macrotis, Thomas, Ann. Mag. Nat. Hist. (9), VIII, p. 538, 1921. 
Thomas’ description is as follows. "Similar to N. gouldi, but larger, the 
hind foot about 40 mm., the skull some 2 or 3 mm. larger than in that animal. 
Fur rather coarser. Colour apparently similar. Interorbital space compara- 
tively broad. Palatal foramina large, open, about 2.6 mm. in breadth as 
compared to 1.8 mm. in gouldi. Choanae also markedly broader, nearly 3 mm. 
in breadth. Orthodont ; incisive index of type 68°. . . Habitat. Interior of 
Western Australia, on Moore’s River.” 
No specimen in the series examined can be attributed to 
N. macrotis. Though many approach, and some equal, in size, 
the type of that species, none is “readily distinguishable by its 
large and open palatal foramina," nor do any approach in 
incisor index the 68° of the type’s “incisive index.’’ 
Moore’s River can scarcely be called the “interior of West 
Australia.” It is a small river some 60 miles north of Perth. 
Notomys mitchelli (Ogilby). 
Dipus mitchelli, Ogilby, Trans. Linn. Soc., 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., Ill, p. 3, 1925 ; id. Mamm. Sth. Aust., Ill, p. 339> 
1925. 
Medium sized. General colour tawny-olive, darker on mid-dorsal line. 
Individual hairs (14 mm.) slate for a little more than half length, then tawny 
with dark tips, the latter becoming more pronounced towards tail. Sides of 
body lighter, cheeks lighter, upper lip white. Ears long, tips bluntly pointed, 
outer surface sparsely covered with dark-brown hairs, inner surface with 
silvery, adpressed hairs. Gular glandular aiea defined by silky white, solid 
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