1907.] FROM SAGHALIEX AND HOKKAIDO. 411 



Squirrel, which differs in size alone from its Hokkaido ally, but 

 there seems no doubt that it ought to have a name. Possibly- 

 some colour chai'acter will be found when winter specimens are 

 available for comparison. 



11. SCIURUS VULGARIS ORIENTIS Thos. 



S. 1065,1073. Ochiai, Central Hokkaido. 



c^. 1077, 1103. $.1075,1110. Kuchan, Hokkaido. 



12. Tamias asiaticus Gmel. 



? . 949 (immature). Mts. 35 miles N.W. of Korsakoff, 

 Saghalien. 



13. Tamtas '• UNEATUS Siebokl." 



S . 1039, 1063. Ochiai, Central Hokkaido. 



$. 989, 1006, 1019, 1038, 1049, 1070, 1071, 1072. Kuchan, 

 Hokkaido. 



This fine series, representing the first mammal ever described 

 from Japan, " Myoxus lineatus " Siebokl *, is of much value to 

 us, but for want of more Siberian material I am unable to venture 

 an opinion as to its specific or subspecific relationship to T. 

 asiaticus. But if not identical, it is certainly very closely allied 

 to the latter. 



14. MUS NORVEGICUS Erxl. 



c5'. 811. 15 miles N.W. of Korsakoff, Saghalien. 



15. MiCROMYS spECiosus GiLiACus, subsp. n. 



54 specimens (mostly immature) from 15 miles IS'.W. of Korsa- 

 koff (sea-level), 17 miles N.W. of Korsakoff (150'), Darine (200'), 

 and mountains 35 miles N.W. of Korsakoff (1000'). 



Most closely allied to the Korean subspecies, M. s. pen- 

 insulce t, with which it agrees in the proportionally long and hairy 

 tail, as compared with the Japanese forms, but distinguished by 

 the ear being uniformly shorter. In the considerable number 

 of jyeninsulcB examined, the ear is measured by Mr. Anderson as 

 15, 15"5, or 16 mm., generally the last in adult specimens. In the 

 Saghalien form, on the other hand, the great majority have the 

 ear measured as 14 mm., some two or three only being labelled 

 as 15. 



The colour of the Saghalien specimens is rather darker than in 

 those from Korea, but the former are all in summer and the 

 latter in winter pelage, which may account for the difference. 



The fur, in summer pelage, is not so distinctly spinous as it is 

 in Japanese specimens, but thei-e is a certain crispness which may 

 develop into spininess in old age. 



* Spic. Faun. Japoii., in Diss. Hist. Nat. Japon. p. 13, 1824. 

 t P. Z. S. 1906, p. 862. 



