222 RODENTIA, 
Section MYOMORPHA. 
Family MYOXIDA. 
Dentition:—I. * C. 5 Pm. 7 M. = 
Genus MYOXUS, Schreber’. 
For paleontological purposes it seems that this genus must be 
taken to include Muscardinus, Hliomys, and Graphiwrus, as many of 
their distinctive characters are not applicable to fossils. Myo«us 
proper and Muscardinus have well-marked and numerous enamel- 
folds on the flat crowns of the cheek-teeth, and no perforation in the 
angle of the mandible. In Hliomys the mandible is perforated, and 
the crowns of the cheek-teeth are concave and have few and faintly- 
marked enamel-folds. In Graphiwrus the mandible is imperforate, 
and the crowns of the cheek-teeth are flat, with scarcely any traces 
of enamel-folds, 
Myoxus melitensis, Leith Adams’. 
Syn. Myoxus carte, Leith Adams?®. 
This is the largest species of the genus. The cheek-teeth have 
_ flat crowns with complex foldings, and there is no perforation in 
the angle of the mandible. The species consequently belongs to 
Myowus proper. 
Hab. Malta. 
49342. The nearly complete cranium, wanting the incisors, but 
showing the whole of the cheek-teeth, in a well-worn con- 
dition ; from the Crendi Cave, Malta. The length from 
the inferior border of the foramen magnum to the ex- 
tremity of the premaxilla is 0,060, and the length of the 
space occupied by the four cheek-teeth 0,013. 
Spratt Collection. Presented, 1878. 
49343. Anterior portion of the cranium, wanting several of the 
cheek-teeth ; from the Crendi Cave. 
Spratt Collection. Presented, 1878. 
49344. Anterior portion of the cranium, wanting the nasals, and 
1 Saugethiere, vol. iv. p. 824 (1792). 
2 Journ. R. Dublin Soe. vol. iv. p. 18 eral (read Noy. 1861). The name 
is misprinted miletensis, 
8 Loe. cit. pl. il. 
seat 
