484 Mr. O. Thomas on 



metres in area, where I obtained four specimens, but saw 

 none anywhere else, and it is evidently very rare." 



[As an indication of the extent to which our British 

 National Museum has participated in the general advance in 

 the systematic knowledge of Mammalia, and the corresponding 

 accumulation of typical specimens, I may perhaps be per- 

 mitted to record that, so far as I am able to calculate, this 

 is the two-thousandth mammal to which, as the official 

 mammalogist of the Museum, I have had occasion to give a 

 name. And many hundreds more have been described and 

 named by other workers. The vastness of the collection — 

 especially of types — indicated by these figures is due mainly 

 to the patriotism of our countrymen all over the world, many 

 of whom have been proud and pleased to contribute to their 

 National Museum merely because it is the National Museum, 

 without pay or return, and often in climates where mere 

 existence is a burden. 



Having possessed for forty years the great privilege of 

 working on this wonderful collection, I feel I cannot too 

 strongly express my appreciation of the generosity and public 

 spirit shown by its many contributors — whether those who at 

 home have provided funds for making expeditions, or abroad 

 have made collections to be added to the National treasures. 



My own share in the woik, carried on as it has been under 

 the most favourable conditions, has been a continuous pleasure. 

 And in appreciation of one important element in this pleasure, 

 the sympathetic and ever-ready help of my wife, I have 

 given to this attractive little animal the above specific name.] 



LI. — Two new Forms o/"Leggada. 

 By Oldfield Thomas. 



(Published by permission of the Trustees of the British Museum.) 



Leggada lella sybilla, subsp. n. 



Near L. b. induta, but with much shorter fur. 



Hairs of back about 4*0-4*5 mm. in length. General 

 colour buff'y, not so bright as in induta, and broadly darkened 

 on the back, the flanks clear buffy. Belly pure sharply 

 defined white. A very small subauial white spot. Hands 

 and feet white. Tail pale greyish above, white below. 



