200 Bibliographical Notice. 



averaj^e decidedly shorter. In seven skulls of sacer the 

 foramina are 6*7 mm. in length or more, while in three 

 specimens of chihliensis they are 6*1 mm. or less. Molars 

 smaller. 



Dimensions of the type, measured in flesh : — 



Head and body 135 mm. ; tail 146 ; hind foot 26*5 ; ear 22. 



Skull, greatest length 38 ; coudylo-incisive length 35 ; 

 zygomatic breadth 17"3; nasals 132; interorljital breadth 

 5'4. ; breadth of brain-case 15; palatilar length 16; palatal 

 foramina 6*1 ; upper molar series (much worn) 5*6 — of a 

 younger specimen, unworn, 5'3. 



Hub. Imperial Tombs, 65 miles E. of Peking. Alt. 1000 ft. 



Type. Old male: B.M. No. 8.8.7.31. Original number 

 1551. Collected 17 September, 1907, by M. P. Anderson. 

 Presented by the Duke of Bedford, K.G. 



Even if the greyer colour is, as it may be, largely due to 

 the specimens being all in the spinous summer coat, this 

 subspecies deserves recognition by its shorter tail, shorter 

 palatine foramina and smaller teeth. It is the farthest to 

 the north-east of the races of R. confucianus. 



BIBLIOGRAPHICAL NOTICE. 



Australasian Antarctic Expedition, 1911-14, under Sir Douglas 

 Mawson. Scientific Reports. Series C. Zoology and Botany. 

 Vol. IV. part 1. Mollusca. By C. Hedley, F.L.S. &c. Pp. 80, 

 9 pis. 



This is the second part of the series published so far, the first 

 (vol. iii. pt. 1) being on the Fishes by E. R. Waite ; and both do 

 great credit to their begetters, being both well done and well got up. 

 Mr. Hedley describes some 125 species of Mollusca, obtained 

 from the twelve dredging-stations on Adelie Land and from Mac- 

 quarie Island, including 41 new species and 2 new genera. All 

 these new forms are most excellently illustrated, though one could 

 wish that the degree of magnification or reduction had been indi- 

 cated on the plates, or at least given in their explanations. No 

 general deductions are given, all such, we believe, being reserved 

 for special treatment when all the branches of zoology have been 

 ■dealt with. Mr. Hedley, however, does point out that " about a 

 third of the Mollusca reported from Macquarie Island extend to 

 Kerguelen, and some range round the pole to the Falkland Islands 

 and New Georgia," whilst he considers that probably some of the 

 forms here described as new will be eventually traced to other 

 subantarctic lands. 



