30 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



Fenestra in zygoma, conspicuous, elongated, oval in shape. 



Rostrum long and slender; premaxillee elongated; distance from lachrymal notch 

 to end of premaxilla equal to distance from notch to condyles. . . Tana, p. 134. 



Rostrum not conspicuously elongated and slender, nor premaxillfe unusually 

 lengthened; distance from lachrymal notch to end of premaxilla equal to dis- 

 tance from notch to auditory meatus Tupaia, p. 30. 



KEY TO GENERA BASED ON DENTAL CHARACTERS. 



Upper molars without mesostyle; upper canine (third tooth in upper jaw) with 2 roots 

 and premolariform in shape; i2 about twice as large as ii; middle lower premolar 



smallest of lower premolar series Ptilocercin.e, Ptilocercus, p. 159. 



Upper molars with distinct mesostyle; upper canine (third tooth in upper jaw) usually 

 with a single root, small but somewhat caniniform, i^ and i., almost subequal; firat 



lower premolar smallest of lower premolar series Tupaiin^. 



i^ much larger than i^, and canirdfoiTn Urogale, p. 154. 



i^ slightly smaller than i^, not caniniform. 

 Hypocones on upper molars much reduced; not present as distinct cusps; lower 



canines and premolars more trenchant Dendrogale, p . 126 . 



Hypocones on upper molars not conspicuously reduced; present as more or less 

 evident cusps; lower canines and premolars less trenchant. 

 Hypocones very strongly developed, and pm* distinctly wider than long, and 



Cj not noticeably higher than adjacent i^ and pmj Anathana, p. 120. 



Hypocones moderately developed; pm* not conspicuously wider than long; Ci 

 standing noticeably higher than adjacent i^ and pwj. 



Lower canine nearer % than to pmj Tana, p. 134. 



Lower canine equally spaced between i^ and pm2 Tupaia, p. 30. 



DESCRIPTIONS OF GENERA AND SPECIES. 

 Genus TUPAIA Raffles. 



1820. Sorex Diard, Asiat. Joum. Monthly Register, vol. 10, p. 478, November, 

 1820. Not of Linnaeus 1758. 



1821. Tupaia Raffles, Trans. Linn. Soc. London, vol. 13, 1822, p. 256, May, 

 182-1. 



1821. Sorex-glis Geoffroy and Cuvier, Hist. Nat. Mamm., vol. 3, liv. 35, p. 1, 

 December, 1821, perhaps early in 1822. 



1822. Glisorex Desmarest, Mammalogie, footnote, p. 536, 1822. 

 1825. Cladobates Cuvier, Dents des Mammifferes, p. 60, pi. 17, 1825. 

 1827. Hylogale Temminck, Monogr. Mamm., p. xix, 1827. 



1840. Erinaceus, Blainville, Ost6og. Mamm. Insect., p. 112, pi. 6, fig. 1. 

 1843. Eylogalea Schlegel and Mijller, Verh. Nat. Gesch. Nederl. Overz. 



Bezitt., p. 159. 

 1855. Glisosorex Giebel, Odontographie, p. 18, 1855. 



1860. Sciurus Ellis, in Gray, Ann. Mag. Nat. Hist., ser. 3, 1860, vol. 5, p. 71. 

 1860. Tapaia (sic) Gray. Ann. Mag. Nat. Hist., ser. 3, vol. 5, 1860, p. 71. 

 1882. Glirisorex Scudder, Nomenclator Zool., pt. 2, p. 131, 1882. 

 1888. Glipor a J E-NTiNK, Cat. Syst. Mus. Hist. Nat. Pays-Bas, vol. 12, Mammif^res, 



p. 118. Publication of manuscript name of Diard. 



Type. — Tupaia ferruginea Raffles. Two species were included in 

 the genus by Raffles — T ferruginea and T. tana. The latter is taken 

 as the type of the new genus Tana, page 134^ and T. ferruginea is 

 selected the type of the genus Tupaia, 



