THE HARVEST MOUSE 565 
Milne Edwards (Rech. Mamm., 291, 1874), is a dark-coloured, rather 
long-tailed form inhabiting Southern China. J. m. japonicus, Thomas 
(P.Z.S., 1905, 351, described from Shikoku), inhabiting Japan, is a 
dark-backed mouse with rufous rump and sharply contrasted white 
belly, the hairs of which have slaty bases; one old specimen, however, 
is more or less rufous over the whole of the upper surface (Thomas) ; 
the skull has an unusually large brain-case, and the cheek-teeth are 
decidedly larger than those of wssuricus. 
It would appear that all forms of J. mznutus have, at one stage of 
growth, dark backs, the rumps only being then rufous; that in the 
Western soricinus the change to the rufous coat of maturity is made 
quickly, and that some of the Eastern races, such as fratenszs and 
japonicus, May acquire, at all events occasionally, such a rufous coat 
as old age advances. 
DIMENSIONS IN MILLIMETRES :— 















Tail Hind foot 
Heat and (without (without | Ear. | 
y hairs). claws). 
Average of 8 oe in nest, far just ges | 
ing (L. E. Adams). 27 21 8 
MALES :-— 
In rufous pelage :— 
Sussex (L. E. Adams), 3rd Sept. 1909 = 57 59 14 
Essex, COLCHESTER (Dr H. Laver)— 
24th April 1903 55 55 14 8 
Do. 57 55 14 9 
Do. 58°5 o4 145 9 
Norroik, Coneuam (Oxley Grabham)— 
26th Dec. 1898 64 61 15 9 
Do. 65 58 14 8 
NorFoLk, Happiscor (L. C. Farman)— | 
24th Dec. 1898 58 52 | 14 9 
Do. 59 58 14 8 
Do. 59 56 15 $s 
ist Feb. 1899 59 57 15 8 
FEMALES:— 
Essex, CoLCHESTER—(Dr H. Laver)— | 
24th April 1903 57 58 45 | 385 
Do. 58 58 14 |, 8 
NorFotk, Happiscor (L. C. Farman)— | 
24th Dec. 1898 56 52 13 | $ 




Remarks :—White (Letter xiii, 22nd Jan. 1768, to Pennant) found 
that his specimens from nose to tail were just 2} inches, and their 
tails just 2 inches long. Rope (Zoologist, 1884, 59) gives the average 
total length of seven adults as 4 inches 8} lines: the head and body 
averaging 2 inches 7} lines, the tail 2 inches 1 line. 
Weight :—White (Letter xiii.) says: “Two of them, in a scale, 
weighed down just one copper halfpenny, which is about the third of 
