1907.] MAMMALS FROM KOREA. 465 



on the toes cream-colour, more extended proximally than in the 

 allied forms. Tail pinkish buff, the intei-mixed black hairs of the 

 uppei- layer unnsually few in number, and therefore not hiding 

 the buff. 



Skull with a narrow, parallel-sided muzzle, less expanded ante- 

 riorly than in S'. 7'ussicus. Palatal foramina rather long. Bullae 

 slightly larger than in momonga, decidedly smaller than in 7'ussicus. 

 Incisors unusually dark orange in front. Cheek-teeth very small, 

 as narrow as in the much smaller true Tnomonga. 



Dimensions of the type (measured in the flesh) : — 



Head and body 157 mm. ; tail 149 ; hind foot 35 ; ear 19*5. 



Skull : greatest length 39 mm. ; basilar length 29*5 ; greatest 

 breadth 23 ; nasals 12-2 x 5-1 ; interorbital breadth 7*5; breadth 

 of brain -case 17; palatilar length 16 •2; palatal foramina 5'5 ; 

 length of bulla 10"2 ; length of upper tooth- series exckisive of 

 p^ 6"5 ; greatest breadth of m^ 1'8. 



Hah. and Tyj^e as above. 



This Korean Flying- Squirrel is in many ways intermediate 

 between S. rtissicus and S. mo'monga, and perhaps indicates that 

 the latter should be looked upon as one of several Far Eastern 

 svibspecies of the former. In the meantime I give it a binomial 

 name in order not to prejudge the question before amplei' material 

 is available. As a nameable form, whether species or subspecies, 

 ahico may be distinguished by its intei*mediate colour, buffy tail, 

 short feet, and small teeth. 



9. Tamias orientalis Bonh. 



c?.1134. $.1139,1141,1142. Kim-hoa, 65 miles N. of Seoul, 

 300'. 



$ . 1147. Kaloguai, 55 miles N.E. of Seoul, 500'. 

 The male 1134 is the only adult specimen, the others being all 

 about three-fourths grown. 



10. MiCROMYS SPECIOSUS PENINSULiE ThoS. 



6 . 1136. Kim-hoa, 65 miles N.E. of Seoul. 

 J. 1185, 1191. $. 1184, 1186. Chong-ju, Chung-Chong, 

 500' and 800'. 



11. MiCROMYS AGRARIUS MANTCHURICUS ThoS. 



<S . 1125, 1127, 1129. $. 1126, 1130. Penchan, 50 miles 

 N.E. of Seoul, 300'. 



J . 1150. Kaloguai, 55 miles N.E. of Seoul, 500'. 



5 . 1132. 65 miles N.E. of Seoul, 300'. 



S. 1155, 1157, 1158, 1159, 1164, 1165. $. 1156, 1161. 

 Chong-ju, 68 miles S. of Seoul, 500'. 



S . 1170, 1173, 1178, 1188. $ . 1171, 1172, 1179, 1189, 1190, 

 Near Ohong-ju, 800'. 



The variation in the development of the dorsal stripe is as grqat 

 in these as in the South Korean series. Specimen No. 1150 has 



32* 



