228 TUPAJA DORSALTS. 



preserved in the Museum and that nobody knows anything 

 about its fate. If the animal has not been confounded 

 with another, then East-Java is a third locality for this 

 most interesting species. 



Dr. Kerbert, Director of Natura Artis Magistra at Am- 

 sterdam kindly informed me that the named Zool. Society 

 received on October 22, 1870 a living mouse, presented 

 by Mr. van Vloten from Padjarakan, a sugar-manufacture 

 in the Probolingo Residency , East Java and registered by 

 Dr. Westerman as Pithecheir melanurus? and that the in- 

 dividual truly has been lost. 



Tu p aj a dorsalis Schlegel. 



There are in our Museum two small Tupa/a-specimens , 

 being the types of Tupaja dorsalis described and figured 

 in 1857 by Professor Schlegel (Handleiding tot de beoefe- 

 ning der Dierkunde, deel 1, p. 59, plaat III, fig. 31) in 

 these terms : » Tupaja dorsalis from Borneo has a slender 

 tail and a black stripe on the back." In 1872 Professor 

 Schlegel again described and figured it (De Dierentuin van 

 bet Kon. Zool. Gen. Natura Artis Magistra, Mammalia, 

 pp. 61 and 62). This also very short description runs as 

 follows: »In another species from Borneo, Tupaja dorsalis ^ 

 the tail is more slender (than in Tupaja tana) and the 

 back is lengthwise adorned with a black stripe." 



Having extracted the skull from one of the typical 

 specimens,' I saw that it was not yet fullgrown and sup- 

 posing that the diiference in color between them and 

 T. tana (in tana likewise the deep black stripe on the 

 back is very well developed , although only from between 

 the ears to halfway the hack) would merely be due to age , 

 I exhibited Schlegel's species as young specimens of the 

 latter species in my Catalogues (Cat. Ost. 1887, p. 240 

 and Cat. Syst, 1888, p. 116). Shortly afterwards however 

 a more accurate study convinced me that I was in error 

 and I now will try to expose the grounds upon which 



Notes from the Leyden Museum , ~V"ol. XII. 



