1907.] ON MAMMALS FROM ANXAM. 3 



Dimensions of the type, measured in the flesh : — 



Head and body 501 mm, ; tail 850 ; hind foot 155 ; ear 40. 



Skull — greatest length 105 mm., basal length 75 ; breadth of 

 brain-case 55 ; length of upper cheek-tooth series 23. 



Hah. Ituri River, between Mawambi and Avakubi, Upper 

 Congo ; alt. 3000'. 



Type. Adult male. B.M. no. 7.1.2.1. Original number 184. 

 Collected 23 October, 1906, by R. E. Dent. 



This handsome Monkey is most nearly allied to the W . African 

 C. campbelli, but difi'ers by its grizzled olive-yellowish instead of 

 black hind limbs, tlie absence of black on its posterior back, its 

 more or less greyish-white tail, and by the high and sharply 

 defined line separating the colours of the flanks and belly . 



The following papers were read : — 



1. On a Collection of Mammals made by Dr. Vassal in 

 Annam. By J. Lewis Boxhote, M.A., F.L.S., F.Z.S.* 



[Received November 16, 1906.] 

 (Plate Il.t and Text-figures 1, 2.) 



The British Museum has recently acquired a most interesting 

 set of Mammals from Annam, collected by Dr. Vassal. The 

 collection contains examples of some twenty-five species, of which 

 five are new to science, while several of the others add consider- 

 ably to our knowledge (still very limited) of the fauna of the 

 district. 



Since the collections made by MM. Pierre and Mouhot over 

 half a century ago, practically no fresh material has reached 

 Europe from that locality. As would therefore be expected, 

 many of the forms are undescribed, and thei-e is little doubt that 

 with further material many of the forms at present included 

 under existing names will prove to be subspecifically distinct. 



The collection is, perhaps, too small for any generalisation on the 

 fauna of Annam, but its affinities seem if anything to tend towards 

 China rather than the Malay Peninsula, and it is especially note- 

 worthy that it differs considerably from the fauna of Siam. Lest 

 I am misunderstood, I may as well point out that by "fauna" I 

 am not referring to the presence or absence of certain genera, 

 bvit rather to the fact that the local forms of widely spread 

 species approximate rather to the Chinese than to the Malayan. 

 To give some examples: — The Porcupine is Anderson's Hystrix 

 yunnanensis., not H. grotei from the Peninsula. The Fetaurista 

 is Anderson's P. yunnanensis, and not P. lylei, mihi, from Siam. 

 The new Tupaia described has its affinities with T. chinensis and 



* [The complete account of the new species described in this communication 

 appears here ; but since the names and preliminary diagaoses were published in the 

 ' Abstract/ such species are distinguished by the name being underlined. — Editor.] 



t For explanation of the Plate, see p. 11. 



