\ \,o 
Vol. XXVII, pp. 89-92 
May 11, 1914 
PROCEEDINGS 
OF THK 
BIOLOGICAL SOCIETY OF WASHINGTON 
TWO NEW MURINE RODENTS FROM EASTERN ASIA. 
BY GERRIT S. MILLER, Jii. 
[Pul)lished by permission of the Secretary of the Smithsonian Institution.] 
Material in the United States National Museum collected in 
Manchuria and China by Mr. Arthur de C. Sowerby and Mr. 
^V. W. Simpson includes two undescribed murine rodents. 
Apodemus praetor sp. nov. 
]8()2? [M'hs sylvaLicus] vrt. major Radde, Reiseii im Siideti von Ost- 
Sibirien, voi. 1, p. 180 (Bnreja Mountains, Ainnr). Not Mus pumilio 
var. major Brants, Mnizen, p. 105. 1827. 
Type.—k(\\\\i male (skin and skull) No. 197,792 U. S. National Mu¬ 
seum. Collected on the 8un^aree River, 00 miles southwest of Kirin, 
Kirin Rrovince, Manchuria, July 0, 1918, by Arthur de Carle Sowerby. 
Original No. 625. 
Diagnosis. —Like Apodemus peninsulae (Thomas) but size greater, ear 
longer, and skull more robust; ground color of upper parts slightly darker 
and less yellowish than in A. peninsulae in corresponding coat.* 
Measurements.— and adult female (No. 197,789) from the type 
locality, both with teeth much worn : head and body, 115 and 110; tail, 119 
and 112; hind foot, without claws, 26 and 24; ear, 16.5 and 17; condylo- 
basal length of skull, 28.8 and 27.4; zygomatic breadth, 14.4 and 14.5; 
iiiterorbital constriction, 4./ and 4.5; breadth of braincase, 12.0 and 11.9, 
depth of braincase at middle, 8.5 and 8.8; nasal, 12.2 and 12.5; dias¬ 
tema, 9.2 and 9.0; mandible, 17.0 and 16.9; maxillary toothrow (alveoli), 
4.8 and 3.7; mandibular toothrow (alveoli), 4.0 and 8.7. 
Specimens examined. —Five, all from the type locality. 
Remarks. —The specimens of Apodemus praetor have been compared with 
85 skins of A. peninsulae from Kansu, Shensi, Shansi and Korea. In this 
series the two largest individuals (females), both from mountains thirty 
miles west of Kuei-hua-cbeng, northern Shansi, measure: head and body, 
100 and 101; tail, 102 and 98; hind foot, 28 and 21; ear, 15.5 and 14. 
* Four of the skins are in faded winter pelage; the fiftli shows tlie beginning of the 
summer molt. 
]9_Proc. Biol. Soc. Wash., Vol. XXVII, 1911. 
(89) 
