294 



MICROTIN^ 



Fur dense, very soft and fine althougli not specially modified. 

 Colour more or less rufous brown, sometimes with metallic 

 reflections. 



Skull long and narrow, rather strongly built. Rostrum long 

 and slender, the nasals ending anteriorly nearly flush with the 

 incisors. Zygomata normal, the greatest zygomatic breadth 

 falling in the glenoid region. Interorbital region relatively 

 narrower in adults than in Eothenomys. Braincase long and 

 narrow, smooth, the ridges not conspicuous in the material 



Fig.Sa 



^'9- 3b. 



Fig. 88. — Cheek-teeth of Antelinmys. 



1. A. chinensis (B.M., No. 11.2.1.215). Right wi^ and »«' juv. 



2. A. custos (B.M., No. 12.3.18.6). Right 7n\ tn^, and m^ 



3. A. chinensis tarquinius (B.M., No. 11.2.1.209). a. Right upper, 6. left 



lower molars. 



available. Temporal ridges tending to fuse, and in old age probably 

 fusing to form a median interorbital crest; diverging behind, 

 these ridges have a normal course, following the squamoso- 

 parietal suture on the fore-part of the braincase, and then crossing 

 successively the lateral wing of each parietal and the lateral 

 extremities of the interparietal. Post-orbital crests of squamosals 

 moderately developed, anterior squamosal encroachment in- 

 cipient; upper border of jugal gently convex. Anterior palatal 

 foramina large. Posterior portion of palate essentially as in 

 Evotomys, but its posterior border in adults produced to form a 

 median spine. Pterygoid fossae large, their floors distinctly 



