1869. ] LETTER FROM DR. J. ANDERSON, 277 
Phacocherus eliani. 
Mr. Sclater exhibited drawings illustrative of the external differ- 
ences between these two Wart-hogs, and also made remarks upon 
their well-known cranial and dental differences, which had been fully 
described by F. Cuvier, Van der Hoeven, and Owen, but which had 
not prevented Dr. Gray from uniting the two species in his recent 
Catalogue* of these animals. 
The following extract was read f: na letter addressed by Dr. J. 
Anderson, C.M.Z.S., to Mr. A. Grote, F.Z.S., concerning his recent 
expedition to Yunan :— 
**T have brought back a large collection of birds, mammals, rep- 
tiles, fishes, insects, and land and freshwater mollusks, and believe 
I have a number of novelties amongst them. I will send you a copy 
of my report when finished, but that will not be for some time yet. 
* P. Z. 8. 1868, p. 46, and Cat. Carnivorous, Pachydermatous, and Edentate 
Mamm. p. 352 (1869). 
Proc. Zoou. Soc.—1869, No. XIX. 
