On new Mammals from Korea and }fanehuria. 007 



of muscle occurring in Xotykus kilossensis is incntioiied by 

 IMicliaclseu in Notykus einiui. 



It will be plain from the above account of the sperma- 

 tliecal sac in the two mature examples of my new species, 

 A and C, that tliere are differences between them which are 

 probably to be put down to greater maturity in the speci- 

 men A than in C. The muscular bags lying over the posterior 

 region of the spermathecal sac in A are much thicker than 

 the thin sheet wliich is described above in the bisected incii- 

 vidual C. Their lumen also appears to be continuous with 

 that of the " Nebentaschen,'' with which, indeed, they seem 

 to be quite continuous structures — a backward extension, 

 that is to say, of the " Nebentaschen." The conditions observ- 

 able in specimen C may indicate that the actual origin of the 

 " Nebentaschen " and the posterior sacs of the spermathecal 

 sac are distinct. But I have not ascertained whether the 

 undoubtedly more delicate muscular layer of the posterior 

 region of the spermathecal sac in C is actually double, and, 

 therefore, contains a lumen. Intermediate stages ap^iear to 

 me to be wanting — the two do not constitute a chain with- 

 out a l)reak. 



LXIV. — On some new Mammals from Korea and Manchuria. 

 By Prof. T. j\loiU, Keijo High School, Seoul, Korea. 



In the course of some studies of Korean and Manchurian 

 mammals, undertaken in the British liluseum (Natural 

 History), by the kind permission of Sir Sidney F. Ilarmer 

 and Mr. Oklfield Thomas, I have I'ound the following hitherto 

 unnamed mammals. The types of these have been presented 

 to the British Museum. 



Nyctereutes koreensis, sp. n. 

 Ni/cterctites in-ocyonoides, Gray, Thomas, P. Z. S. 1907, p. 404. 



Type. — Adult male (skin and skull). Original number 2. 

 Collected at Giseifu, near Seoul, Korea, Jaimary 24tli, 1922, 

 by Mr. Eizo Takahashi. B.M. no. 22. 10. G. G. 



Diagnosis. — Size less than that of Nyctereutes ussuriensis^ 

 Iklatschio, and N. amurensis, Matschie, of the Amur region. 

 Cheek darker, forehead and part under the ear whiter than in 



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