MUS SETIFER, 
Ord. IV?* Rongeurs, Cuvier. 1" Division. 
Ord. IV. Glires, Linn, Syst 
Ord. IV. Prensiculantia, Illiger. Fain. 10, Murina. 
MUS, Linn. ErxleK Briss. Cuv. Illig. <$c. 
Char. Gen. — Dentium formula; Primores f-, Molares Primores inferiores 
scalpro corapresso acuto. Pro Laniariis diastema. Molares abrupti, obducti, 
tritorii, tuberculati. 
Rostrum acutura. Labrum fissum. Sacculi buccales nulti. Auricula oblongse aut 
rotundatae, nudiusculae. 
Cauda elongata aut mediocris, squamata, annulata, raropilosa. Mamma apertae, 
pectorales et ventrales 4 — 12. 
Pedes distincti, ambulatorii, antici digitis 4. et verruca hallucari, postici pentadactyli. 
Ungues falculares. Illiger. 
* * Mures setosi vel spino&i. 
Mus cauda annulosa elongata, corpore setoso nigricante-fusco subtus cano, dorso setis 
suberectis rigidis liirto, uropygio setis longis sequalibus postice spectantibus 
obtecto, auriculis magnis rotundatis nudiusculis. 
Tikus-wirole, of the Javanese. 
THE distinguishing character of the Tikus-wirok of the Javanese is afforded 
by numerous rigid hairs, which are scattered over the upper parts of the body, and 
project widely from the general covering. These hairs commence immediately 
behind the neck; they increase in number on the back, and being considerably 
lengthened on the rump, they constitute a lax investment about the root of the 
tail and the uropygium. This peculiar character has suggested the specific name 
