1942 
1944 
Tokoro, 
1943 
Tokuda, 
1941 
1941 
1941 
1942 
38 
A detailed study of the chromosomes of the domestic cat and the Chinese tiger- 
cat, Felis bengalensis Kerr, showed such marxed similarities between the two 
that the author concludes hybridizing them is possible, 


"Advice to Rat Catchers": Jour Taiwan Mus Assoc, X (2,4), pp 1-6, 1 pl, 1 text 
fig, Sep 1942, 3 
A delineation of methods of catching rodents for scientific study, Various 
types of traps are described and pictured, 
"A Synopsis of the Study of Murine Sex-Chromosomes": Trans Nat Hist Soc Formosa, 
XXXIV (251), pp 316-319, Oct 1944, 

The author shows in tabular form the construction and the number of the chromo- 
somes of 27 species of 11 genera of rats, chiefly Formosan, ' Their chromosomes 
were all of XY type, only those of Apodemus and Micromys being of the post- 
reduction type. 
Toshikazu 
"Some Examples of Excess Teeth Discovered in Rattus": Zool Mag, LV (2), p 72, Feb 
1943, 
Literature on excess teeth in the genus Rattus is scarce, Single examples of 
excess incisors in Rattus rattus alexandrinus and Rattus norvegicus var. albus 
and an example of excess molars in Rattus norvegicus var, albus are described, 
Mitosi 
"A Synopsis of Taxonomy and Distribution of Rats and Mice in East Asia": Nip Gak 
Kyo Hok, XVI (1), pp 82-85, Mar 1941, 
The author discusses briefly the various elements that determine the distribu- 
tional limit of rats and mice, and the differentiation of species in rete and 
mice, and traces geological history of the Japan islands in the light of murine 
distribution, 
"A Classification of Rats and Mice Found in Japan, Formosa, Korea, and Manchuria - 
Investigation of Intraspecific Variations Observed in Rats and Mice": Zool Mag, 
LIII (6), pp 267-298, 9 fig, Jun 1941. 
A Japanese abstract of the next title. 
"A Revised Monograph of the Javanese and Manchou-Korean Muridae" (in English): 
Bioge, IV (1), pp 1-155, 88 fig, 10 pl, Dec 1941, 
A detailed monograph, bringing together in a single volume most of the known 
information on all the species of Muridae known in Japan and in the Manchou- 
Korean areas, The systematics are treated thoroughly, and excellent synonymies 
are given, Detailed descriptions and measurements are included for each species, 
The author revises somewhat the accepted vhylogenetic system of the group and 
proposes two new genera, Lemmicrotus and Acanthomys, and five new geographical 
varieties, three from Formosa, and one each from Tsushima and Sado Islands, 
From his studies of Murine taxonomic relationships and geographical distribution 
he concludes the geological detachment of Honshu from the mainland came before 
the isolation of Hokkaido and Sakhalin, and the separation of Hokkaido consider- 
ably earlier tnan that of Sakhalin, which is in accordance with other zoological, 
botanical, and geological evidence, 
"On the Rodents of Hokkaido, with Special Reference to the Red-Backed Vole as In- 
jurious to Forests": Nip Gak Kyo Hok, XVII (1), pp 121-124, Oct 1942, 
