PYGATHRIX 25 



genus Semnopithecus. The Author begins with those species 

 not represented in the Leyden Museum, viz.: {S.) germaini 

 Milne-Edw., {S.) nigripes A. Milne-Edw., and {S.) pileatus ; 

 of which three he gives descriptions. Of three species he had 

 no personal knowledge: (5".) phayrei ; {S.) barbei; and (5.) 

 PRiAMUs. {S.) albipes = P. entellus he considers distinct. 

 The remaining examples he divides into two groups, as Sem- 

 nopitheci Veri, and Semnopitheci Abnormes, the latter con- 

 taining S. nem/eus (Linn.) ; S. roxellan.e A. Milne-Edwards; 

 and 5". nasica — N. larvatus Wurmb. Only the first of these, 

 NEM^us belongs to Pygathrix, the others being members of 

 other genera, Rhinopithecus, and Nasalis respectively. The 

 first group is divided into two sections: I. "Especes pourvues 

 d'une huppe comprimee," and II. "Point de huppe proprement 

 dite." The first of these has six subdivisions, according to the 

 style of crest and color of pelage, A-F. A. has (S.) fron- 

 tatus; B. (S.) rubicundus; C. (S.) mitratus (Escholtz), = 

 Pygathrix aygula (Linn.) ; (S.) albocinereus, comprising 

 two or more species, the albocinereus Desmarest, being unde- 

 terminable; D. {S.) ferrugineus Schleg., = Pygathrix 

 MELANOLOPHA (Raffles); E. {S.) femoralis; {S.) chrysome- 

 las ; (5.) neglectus Schleg., = Pygathrix femoralis 

 (Horsf.) ; F. {S.) obscurus. The second section has two 

 divisions A and B. The first. A, contains those species with hair 

 on top of head directed backward and lengthened possibly at 

 the occiput, and the dominant color of the pelage tending to 

 black or grayish brown, with these species: (5".) johni; (5".) 

 cephalolopterus ; {S.) kelaarti Schleg., = Pygathrix cepha- 

 loloptera (Zimmer.) ; {S.) senex Erxl., undeterminable. 

 The second, B, has species with long, erect hairs on forehead, 

 and lengthened hairs on occiput, but not forming a crest ; thumb 

 shorter; pelage of young russet red, changing early to a very 

 different color, the adults being uniform black, or black with 

 hairs tipped with whitish gray, or a uniform russet red, as 

 follows: {S.) maurus F. Cuv., = Pygathrix aurata (Geoff.) ; 

 {S.) pyrrhus Horsf., = Pygathrix aurata (Geoff.) ; (5.) 

 pruinosus Desm., = Pygathrix cristata (Raffles) ; (S.) en- 

 tellus; (S.) schistaceus; and (S.) dussumieri (I. Geoff.), 

 = Pygathrix hypoleuca (Blyth) ; {S.) germaini is men- 

 tioned, but is not in the Museum. 



