APPENDIX. 
199 
This species is most nearly allied to the Nepalese M. niveiventer , Hodgs., but may be distinguished 
by its unspeckled back, by the more gradual passage of the upper into the lower colour, and by its 
larger size. 
So far as its collector has observed, Mus alticolor is confined to the higher parts of Mount Kina 
Balu. 
18. Mus MUSSCHENBROECKI, Jent. 
a,b. 1000 feet. 3/87. 
c, d. c? ? • 3000 feet. 18 and 20/3/88. 
It is of considerable interest to find this species, previously only known from Celebes, in Borneo, 
on a different side of the line separating the Oriental from the Australian regions. Its occurrence here 
suggests that other members of the Oriental element in the peculiar Celebean fauna may also prove 
to have survived on the tops of the Bornean mountains. 
19. Mus ephippium, Jent. 
a, b. Ad. and juv. 1000 feet. 3/87. 
It appears rather doubtful whether this species is really distinct from Mus concolor, Bly., found in 
Burma and the Malay Peninsula; but for the present I do not feel justified in definitely uniting the two 
forms, and the Kina Balu individual clearly belongs rather to the Sumatran 1 epliippium 3 than to 
its northern ally. 
20. Chiropodomys gliroides, Bly. 
a. 1000 feet. 1/88. 
This specimen is immature, but would not apparently have ever reached the dimensions of the two 
individuals obtained by Mr. Wallace at Sadong, and now in the British Museum. However, it exactly 
matches some of those collected by Signor L. Fea in Burmah and Tenasserim, and is evidently specifically 
identical with them. In the general account now in course of publication of the collection made by that 
gentleman some further details as to the character and synonymy of this beautiful little species will 
be fouud. 
21. Trichys guextheri, nom. nov. 
Trichys lipura , Gimtli. P. Z. S. 1876, p. 739. 
a. Juv. 3000 feet. 3/4/88. 
This specimen is the fourth example of the interesting genus Trichys that has come to England, 
although there have been examples of it for many years in the Leyden Museum. The first one, a tailless 
individual, was described by Dr. Gunther as “ Trichys lipura,’’ under the circumstances detailed in his 
paper of the present year (Proc. Zool. Soc. 1889, p. 75). Since, however, I differ from him as to the 
admissibility of the name 1 lipura ’ for a species which normally has a long tail, I propose now to 
rename the species accordingly. 
No better name can be found for it than of its original describer, whose judgment in forming a new 
genus for it is fully confirmed by an independent examination of its cranial characters, even after 
the downfall of the peculiarity supposed, and not unnaturally, to belong to it of not possessing any trace 
of a tail. 
As to the alleged applicability of Shaw’s name “ Hystrix fasciculata 1 '’ to this Porcupine, I can only 
express my entire agreement with Dr. Gunther’s opinion (/. c .) that that name should stand as a synonym 
of Atherura macrura, L. 
The Kina Balu specimen, although only half-grown, shows all the characteristics of the genus, and 
is distinguishable at the first glance from Atherura by its short spines and narrow parallel-sided caudal 
bristles. 
