6 MR. C. BODEN KLOSS ON 



in the Mergui Arcliipelago cited bj' Elliot who wrote of theinl : "The 

 legs are even paler than those of tlie type (of 1\ o. fiavicmida), lianrls 

 and feet jet black, strongly contrasted with the arms and legs, and the 

 skulls have a flatter brain case and broader rostrum." The rostral 

 breadth in the present animal is 32 mm. while the same measurement 

 in similarly adult males from Trang and Perlis varies from 30 to 28 : 

 the flattening of the occiput mentioned is probably merely due to age. 

 One does not normally expect to fiiul skull difTereuces between 

 the subspecies of a langur, and the Patiyu form can, if necessarj', be 

 ranked as a local race on colour features alone. I have named it in 

 honour of Dr. Malcolm Smith in recognition of the part he has taken 

 in bringing together the })'-esent collection and also of the active 

 interest he takes in the general zoology of Siani. 



4. Presbytis neglecta keatii. 



Prenhi/tit) iiftihcta keatii, ruiMiison aiul Kl<i?s, .loni-n. Fod. Malay 

 Slates Mils., I \\ p. 174(1911): id., (ip. cit-., \\ p. Ill (l'.)14); Wnm-li- 

 toii. .lomii. Uoiiil.ay Xat. Mist. Soi-. XX I! I, p. 701 (1915). 

 S&iiiniijiithi'rii.-' ftmoralis, VAwuUniX (paitiin), Faun. Brit. Iiid., Maiiiiu., 



]!. 42 (IK82J. 

 1 9 adult, Kliao Wang Hip (Uiiper camp), Peninsular Siam. 

 Sept. 1915 [No. 2029]. 



A median vertical crest and an upstanding occipito-nuchal pad. 

 (ieneral colour clear blackish-brown to clove-brown. Frontal 

 fringe, temporal tufts .sides of head and neck, hands and feet extending 

 some distance up the backs of the limbs, tip of tail, black. The inner 

 side of the thiglis broadly, of the lower leg narrowly, white (this colour 

 generally extends on to the lower part of the abdomen and is some- 

 times found occurring on the inner side of the upper arm). 



The range of tiiis langur which iidiabits Peninsular Siam is 

 not fully known but it has been obtained as far south as Taiping, 

 Perak and north as far as the Isthmus of Kra. 

 (For measurements see table p. 7.) 



1. Prof. U. S. Nat. Mils., v.,1. .".H, p. :!;-.2 (I'.MO). 



JOl'IiN. NAT. III.ST. ^OV. SIAM. 



