120 
Mus callithriclms Jentink (Plate X, figs. 4, 5 and 6). 
South-Celebes: Pare-Pare; skull without lower jaws (15). 
This skull agrees so exactly 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 moment 
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, figs. 4, 5, 6, with plate 7, fig^ 5-12 in my Catalogue 
ostéologique, 1887, which represent the skulls of Mus meyeri a.nd Mus 
mülleri; see also B. Hoffmann, Säugethiere aus dem ostindischen 
Archipel, Abh. Museum, Dresden, 1887, plate 3, flg. 3, representing the 
skull of Mus musschenbroekn. 
Mus lepturus Jentink. 
Java: Buitenzorg; sUn: very young cf (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 m.e 
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 
beheve that they agree, the more 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, figs. 7-11). 
Flores: Sikka; skin: adult male (518); (9) young specimen from 
Uma ih, mountainous region near Sikka. 
Upperparts colored hke the same parts in the well known ifws 
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 ;md 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 first phalanx of the index finger; fifth finger 
with claw reaches to the end of the second phalanx of the fourth 
