506 Mr. M. A. C. Iliiiton on 



gradually transforncied into mixed forests with alder and oak, 

 in which hazel formed an undergrowth/' 



It appears to the present writer very probable that this 

 rich occurrence of nut-bearing hazel was of veVy great 

 importance to the big-toothed Bear, the jaw of which has 

 been described above and, therefore, I have taken the liberty 

 of indicating this connection with the name given. 



EXPLANATION OF PLATE IV. 



Fi(/. 1. Left half of ramus of mandible of a young individual of 



Ursu>i pruinosus, Blvth, from Kansu, West China; from above. 

 Fiy. 2. Left half of ramus of mandible of Brown Bears ( Ursus arctos, 



Linn,), from Sweden ; from above. 

 Fiy. 3. Left half of ramus of mandible of an extinct Bear {Ursus arctos 



nucifra(/us, subsp. n., from Halland, South Sweden; from 



above. (Type-specimen.) 

 Fi(/. 4. Ditto, from outer side. 



LT. — The Nomenclature and Subspecies of the Purple-faced 

 Langur, with Notes on the other Langurs inhabiting Ceylon. 

 By Martin A. C. Hinton. 



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



By the kindness of my friend Mr. W. \V. A. Phillips and 

 of the Director of the Colombo Museum, the British Museum 

 has lately received a fine series of specimens illustrating the 

 variation of the Purple-faced Langur in South-western 

 Ceylon. This material enables me to clear up some points 

 which have long been doubtful, and to direct attention to 

 some others upon which further information is required. 



Pithecus vetulus, Erxleben. 



1777. Cercointhecus vetulus, Erxleben, Syst. Reg. An. p. 25. 



1780. Cercojnthecus kephalopterus, Zimmermann, Geograph. Gesch. ii. 



p. 185. 

 1785. Simla cephalopterus, Boddaert, Elenchus Animal, p. 58. 

 1792. Cercopithecus silenus iiurpuratus, Kerr, An. Kingd. p. 65. 

 1795. Siviia porphyrons, Link, Beitrage, ii. p. 62. 

 1800. Simia veter, Shaw, Gen. Zool. i. p. 36 (nee Linnaeus). 

 1807. Shnia latiharba, Temminck, Cat. Sjst. Ornith. et Quadrum. p. 3. 

 1812. Cercojnthecus latibarhatus, Geoffroy, Ann. du Mus. xix. p. 94. 

 1825. Cercopithecus leucoprymnus, Otto, N. Acta Acad. Cses. Leop. 



xii. p. 505, pi. xlvi. his. 

 1833. Semnopithecus nestor, Bennett, Proc. Zool. Soc. 1833, p. 67. 

 1817. Freshytes tliersites, Elliot, Blyth, J. Asiat. Soc. Bengal, xvi. 



p. 1271. 

 1876. iSeijinojuthecus kelaarti, Schlegel, Monogr. des Singes, p. 62, 



