1908.] PROM THE TSU-SHIMA ISLANDS. 51 



UaOTRICHUS TALPOIDES HONDONIS, Subsp. 11. 



Urotrichus talpoicles pilirostris Thos. P. Z. S. 1905, ii. p. 342 

 (1906), nee Dymecodon pilirostris True, P. U.S. Nat. Mus. 1886, 

 p. 97. 



Size medium, head and body length generally about 90 mm. 

 Tail shortest in the genus, the average of 17 specimens being 

 27 mm., with a range of from 23 to 30. Fur about 5-5 to 6 mm. 

 in length on the back. General colour " slate-black " (grey ISTo. 2), 

 with a slight tinge of " mouse-grey," the brown tone found in 

 the more western forms absent. 



Dimensions of the type : — 



Head and body 91 mm. ; tail 26 ; hind foot 14; upper tooth- 

 row 10"1. 



Hah. Hondo. Type from Nakaomi, near Ohito, Izu. 



Type. Male. B.M. No. 6.1.4.97. Original number 144. Col- 

 lected 13th December, 1904. 



This form needs a name different from that I applied to it in 

 1905, for the reasons explained in the footnote*. 



4. Orocidura core^ Thos. 



$ . 1242-1247. Sasuna, N. Island. 

 d" . 1203. Izuhara, S. Island. 



This is one of the three Tsu-shima species of Korean rather 

 than Japanese affinity, but must not be considered as of great 

 importance from a geographical standpoint, as Shrews of this 

 genus are undoubtedly often carried about on shipboard from 

 place to place, so that this Shrew may have been accidentally 

 introduced from Korea. 



" Rare. None seen but the three preserved." — M. P. A. 



* Since I wrote the paper oii Japanese Mammals above referred to, the Museum 

 has received from Mr. K. Kanai, a Japanese who had been taught collecting by 

 Mr. Anderson, a small series of specimens from Central Southern Hondo. Among 

 these there are four examples of an Insectivore entirely new to us, allied to TJro- 

 trichus, but smaller and differing in various details, and it seemed probable 

 therefore, that these represented Mr. True's Dymecodon pilirostris, which had been 

 supposed to have been based on a young Urotrichus. 



By Mr. True's kindness and the great courtesy of the authorities of the United 

 States National Museum I have been permitted the loan of the type specimen of 

 J>. •pilirostris, and a comparison shows at once that the above suggestion is correct 

 and that Mr. Kanai's specimens represent the adult and Mr. True's type the youu<^ 

 of a species generically quite distinct from Urotrichus. I am therefore now able to 

 confirm the absolute correctness of Mr. True's distinction of Dymecodon, on which 

 I had previouslj' thrown doubt. 



The adult dentition of Dymecodon does not differ in number from that of the 

 young described by Mr. True, and appears to be, so far as I am able to understand 

 the homologies of the teeth, 



1 .0.3.4 



; M. ^ • ^ •?. 



0.2.3 1 1.0.3.4 ^'^"^ 



the permanent p^ being present with the milk-teeth, and being included in the 

 number recorded by Mr. True. The formula of Urotrichus is the same, except that 

 the lower canine is absent, the statement made by some authors that there are four 



4* 



