Section MYOMORPHA. 

 Family MYOXID^E. 

 Dentition: -I. \, C. J, Pm. \, M. |. 



Genus MYOXUS, Schreber 1 . 



For palaeontologies! purposes it seems that this genus must be 

 taken to include Muscardinus, Eliomys, and Graphiurus, as many of 

 their distinctive characters are not applicable to fossils. Myoxus 

 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 Eliomys the mandible is perforated, and 

 the crowns of the cheek-teeth are concave and have few and faintly- 

 marked enamel-folds. In Graphiurus the mandible is imperf'orate, 

 and the crowns of the cheek-teeth are flat, with scarcely any traces 

 of enamel-folds. 



Myoxus melitensis, Leith Adams 2 . 

 Syn. Myoxus cartei, Leith Adams 3 . 



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 

 Myoxus proper. 



Hob. Malta. 



49342. The nearly complete cranium, wanting the incisors, but 



showing the whole of the cheek-teeth, in a well-worn con- 

 dition j 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. E. Dublin Soc. vol. iv. p. 18 (1863) (read Nov. 1861). The uaine 

 is misprinted miletensis. 



3 Loc. cit. pL ii. 



