DUTCH BORNEO-EXPEDITION. 61 



the fur thickly intermixed with spines '). At the same time 

 I observe that the specific title Muschenbroecki is wrongly 

 written, for, as my lamented friend's family-name was van 

 Musschenbroek , I called the species Mus Musschenhroekii. 



Mus Mulleri (Hose's Mammals , p. 59) too is wrongly 

 written ; the specific title given by me was Mulleri after 

 Dr. Salomon Muller, the well known explorer of the Malayan 

 Archipelago. The difference in writing may look very 

 insignificant, the name however sounds quite difi^erent 

 especially if pronounced by an Englishman, as also with 

 Ruppell and Rüppell , Rutimeyer and Riitimeyer, Buchner 

 and Buchner , Gunther and Günther a. s. o. — Perhaps it 

 will be preferable to write with Mr. Oldfield Thomas: 

 Guentheri, Muelleri a. s. o. — 



Mus sabanus Oldfield Thomas. 



45. (ale). Adult male. Roema Manoeal, on the south- 

 ern foot of Mount Kenepai. 2. 1. 1894. B. 



Our specimen is somewhat smaller in all dimensions than 

 the type-specimen , f. i. its tail measures 320 mm. (340 

 mm. in the type); we remark however that the type- 

 specimen is a female , preserved as a skin , while our spe- 

 cimen is a male, preserved in alcohol. It agrees exactly 

 with the description given by Oldfield Thomas. 



The tail is quite different from what we see in other 

 Mice, as it is not round as usual, nor square like in some 

 dryed tails, but pentagonal by section. The sides are parallel 

 from its proximal to its distant part , so that the tip of 

 the tail is sideways compressed : the hairs are as usual 

 placed in groups of three on the distant margin of each 

 scale; they are short but soft to the touch; towards the 

 end of the tail however they grow somewhat longer, so 

 that, although the tip of the tail hardly can be called 



1) According to Novitates Zoologicae (Vol. I, p. 658) specimens of M. Hell- 

 waldli must have been found also on the Natuna-islands, but calling to mind 

 my remark (see above) we may be sure that they Ao noi heloag to M. Hellwaldii. 



Notes from tlie Leyden ]VIuseu.m, Vol. ^IX.. 



