44 
JOURNAL OF MAMMALOGY 
The type and an adult female specimen with 5 embryos, were obtained by 
Mr. Y. Utano near Izugahara, Tsushima, October 29, 1920, and were sent tome 
by him. 
Measurements, in millimeters 
LOG. 
HEAD AND BODY 
TAIL 
HIND FOOT 
< 
H 
TOTAL LENGTH OP 
SKULL 
BASILAR LENGTH OP 
SKULL 
ZYGOMATIC BREADTH 
OP SKULL 
X 
H 
to 
MEASURED BY: 
*Near Izugahara, Tsushima 
75 
14.5 
8.5 
18 
15.5 
10 
9 
N. Kuroda 
*'''Tsutsu-mura, Tsushima. . . 
— 
74 
15.7 
8.3 
— 
— 
— 
9 
Mr. Aoki 
*'^Tsutsu-mura, Tsushima. . . 
55 
67 
14 
7 
18.5 
15.6 
9.5 
9 
Mr. Aoki 
***Izugahara, Tsushima 
54 
53 
14.5 
9 
d' 
Mr. Thomas 
* Type. Measured on the moistened skin, ** measured on the specimens in 
alcohol and *** probably measured on the fresh skin. 
Mr. Aoki (“Nihon san Nezumika’’ = Murid£e of Japan, pp. 41-45, 1915) 
described the new form but did not give it a name and he compared 7 other forms 
of Micromys minutus. The new form differs from M. m. soricinus, M. m. yra- 
tensis, M . m.ussuricus, M . m. japonicus and probably M.m. minutus, by the 
tail longer than head and body, except the specimen measured by Mr. Thomas 
which is almost in the same length (P. Z. S., 1908, p. 54). It differs from M. m. 
pygmoeus, by the under parts pure white instead of earthy color. It is probably 
most related with M. m. fiavus, but it differs from the last form by the upper 
parts russet brown instead of bright yellow. 
The subspecific name is given in honor of Mr. B. Aoki. 
11. Rattus norvegicus (Erxleben). — ^jMr. Thomas (P.Z. S., 1908, p.53) reported 
it from Tsushima. Mr. Orii sent me his observation on the rat on Tsushima as 
follows: — This rat is found near fresh water and sea shore in great numbers. Its 
holes were seen in sides of banks and grassy places among rocks. At the ebb- 
tide, it enters into sea water and captures shells as well as small fishes, etc. It 
also eats vegetable matter in the fields. 
FAM. FELID^ 
12. Felis microtis Milne-Edwards. — One specimen and two skins were pre- 
sented to me by Messrs. Fukagawa, K. Nakayama and U. Kishihara. I have 
compared the specimens with one Korean example and found that there is no 
appreciable difference between them, except the markings are less distinct in the 
Tsushima specimens. Not common now on Tsushima. Mr. Thomas reported it 
from this island (P. Z. S., 1908, p. 52). 
