162 MR. OLDFIELD THOMAS ON 



5. Myotis moupinensis M.-Edw, 



S . 2322. 23 miles S.E. of Ta-tsien-lii, Sze-cliwan. 7500'. 



Milne-Edwards's Vesj^ertilio '})ipu2nnensis was placed by Dobson 

 as a synonym of V. muricola Hodgs., but is I'eadily distinguished 

 by the sharp notch in the outer edge of the ear. 



Two specimens of it were also obtained by Mr. W. N. Fei-gusson 

 at Yin-shin-wan, IST.W, of Chong-tu. 



6. Neotetracus sinensis Trouess. 



S . 2416. 45 miles S.W. of Ya-chow, W. Sze-chwan. 

 6. 2445, 2459 {jg.), 2460 (yg.), 2467, 2468, 2469, 2471, 2480. 

 5 . 2434 (imm.), 2444, 2446, 2450, 2472. Omi-san. 6000'. 



This series of the highly interesting Insectivore, Neotetracus, 

 recently described by Prof. Trouessai't, forms a most valuable 

 addition to the Museum Collection, and at the same time enables 

 me to increase our knowledge of its distribution and characteristics. 



The chief 23oint I have to note is its milk dentition, Mr. Ander- 

 son's series including one half -grown and two quite j^oung 

 specimens. 



The result of my examination is the following formula, showing 

 both the milk and permanent teeth : — 



Comparing this with the formulae of other members of the 

 group *, we find that it is almost precisely the same as that of 

 Hylomys, agreeing with it even in the absence of a third upper 

 milk incisor, and the presence of the corresponding tooth below. 

 The main difference is in the entii-e absence, both above and 

 below, in milk and permanent series, of p'"*, this tooth being present 

 in both milk and permanent series of Hylomys above, and in the 

 permanent series below. 



The proportions of the milk-teeth are not very different from 

 those of Hylomys, though di^ surpasses di" to a greater extent. 



While the permanent upper carnassial (p*) is of the usual shape 

 characteristic of the family, its predecessor (dp^) is quite peculiar 

 in the entire suppression of the small postero- internal cusp and 

 the reduction of the antero-intei-nal, these being in Hylomys 

 well developed and approximately similar in position to those on 

 the permanent p''. They are also both present in Gymnura and 

 Erinaceus. 



Taking all characters into consideration, I am of opinion that 

 Neotetracus is most neai-ly related to Hylomys and is strictly a 

 member of the Gymnurinpe, without any special leaning towards 

 the Erinaceinee. 



* Cf. P. Z. S. 1892, p. 505. 



