SNAKES FROM DEHLT. 27 



41. Bothrops Wagleri Boie. 



This snake seems to be one of the most common vipers 

 of Sumatra, as we never got a collection without it. In 

 the Malay language it is called »Ular nanti bulan", as 

 the aborigines maintain that it stays at the same place 

 for a month before it seeks another hiding-place. Dr. Ha- 

 gen knows for certain that one specimen was seen on the 

 same trunk for weeks together, until one of the doctor's 

 friends slew it and took it home. 



42. Bothrops Hageni v. L. d. J. 



This species is represented in Mr. Prakke's collection by 

 one specimen. According to Dr. Hagen (who does not be- 

 lieve it to be a young specimen of Bothrops sumatranus 

 Raffles as suggested by me ^), but is convinced that it is 

 a proper species) this snake attains a length of three feet, 

 is of a grass-green colour on the back , somewhat lighter 

 on the sides with some blue spots, not very clearly visible 

 against the surrounding green. 



43. Platurus Fischeri Jan. 



The only specimen in Dr. Hagen's collection was cap- 

 tured in the forests of Serdang at a distance of nearly a 

 day's journey from the sea. 



Leyden Museum, 30 December 1889. 



1) Notes from the Leyden Museum. Vol. VIII. p. 43. 



Notes from the Leyden Museum , Vol. X!I1 . 



