120 



Mus callithrichus Jentink (Plate X , fig s . 4, 5 and 6). 



SouthCelebes : Pare-Pare; skull without lower jaws (15). 



This skull agrees so exactiy with the same bony parts of our ty- 

 pical specimens of this species, described by me in the Notes from 

 the Leyden Museum, 1879, p. 12, that I do not hesitate a nioment 

 in bringing it under the named head. It is very easy to distinguish 

 Mus callithrichus from the other large-sized Celebean-mice by the skul 

 alone; cf. plate X, fig a . 4, 5, 6, with plate 7. fig s . 5— 12 in my Catalogue 

 osteologique , 1887, which represent the skulls of Mus rneyeri and Mus 

 mülleri; see also B. Hoffmann, Säugethiere aus dem ostindischen 

 Archipel, Abb. Museum, Dresden, 1887, plate 3, fig. 3, representing the 

 skull of Mus musschenbroekii. 



Mus lepturus Jentink. 



Java : Buitenzorg ; shin : very young cT (603 d). 



As I know no other species of mice from the Indian Archipelago 

 having a tail ending in a small tuft like the species described by me 

 in the Notes from the Leyden Museum, 1880, p. 17, under the name 

 of Mus lepturus, and as the very young male-specimen from Buiten- 

 zorg presents this characteristic , I think, that there is reason to 

 believe that they agree, the rnore as the tail in our specimen is very 

 long and the lowerparts of the animal are pure white colored like in 

 M. lepturus. 

 Mus wichmanni n. sp. (Plates IX and X, fig s . 7 — 11). 



Flores: Sikka; skin: adult male (518); (9) young specimen from 

 Uma ili, mountainous region near Sikka. 



Upperparts colored like the same parts in the well known Mus 

 decumanus ; underparts of body and inside of legs pure white, the 

 hairs being wholly snow-white colored. Ears broadly rounded off. 

 As the tail unfortunately has lost its epidermis and all fleshy parts, 

 I can say nothing about the teguments of that organ; as however 

 the basal part of the tail has preserved its epidermis for about 35 mm. , 

 I can state that there are about 15 scales to the centimetre and that the 

 tail is covered with very short black hairs. Hands and feet white, the 

 elongate white hairs overcover the pure white claws. The three middle 

 fingers of the feet are about of the same length; thumb without claw 

 reaches to he end of the fir-t phalanx of the index finger; nfthfmger 

 with claw reaches to the end of the second phalanx of the fourth 



