1893.] DR. C. J. FOESTTH MAJOB ON MIOCENE SQUIRBEIS. 215 



Fig. 5. 2^erus (Eoxerus) hosei, Thos. p,. 



0. A'erus (Ecxeriis) in&lgnis, Fr. Cuv. m^. 



7. Xerus [Prutoxerus) sfaiigcri, Wa^ei'li. m^. 



8. Xerus {Protoxerus) aubinnii, Gr. iiij. 



9. Xenis {Atlaiitoxerus) gctulus, Gesn. iii^, 



10. Xerus erythopus, Geoff, ui,. 



11. Xerus {Eoxeriis) lalicaiidatus, Gr. p,. 



12. „ „ m,. 



13. Anomaluriis fraseri, Waterb. p^. 



14. Anomahtrus beccrofti, Fras. m^. 



1.5. Xerus {Paraxertis) pyrropus, 'Ft. C\iv. ni|. 



16. Xerus (Eoxertts) berdmorei,'B\y.,iuv. nij. 



17. ,, ,, middle age. irij. 



18. „ ., old. nij. 



19. Pteromys leucogenys, Teuim. lUj. 



20. Sc'mropf erus pearsoni, Gr. m.,. 



21. Sciuropterus horsfieldi, Waterb., type. \\\y 



22. Xerus {Pai-axcrus) pyrropiis anerythrus, Thos. in,. 



23. ^Vi??'«s (Paraxerus) cepapi. Smith, nij. 



24. Xerus (Paraxerus) Isabella, Gr. m^. 



Plate X. 



Fig. 1. Sciuropterus albanensis, n. sp. (Middle Miocene of Griye-Saint-Alban.) 

 Upper incisor, a, I'roiu the outer, b, from the inner, e, from the 

 anterior side. 



2. Xerus (Eoxerus) grivcnsis, n. sp. (Middle Miocene of Grive-Saint- 



Alban.) Left mandibular ramus, nat size. 



3. mj, m^, mg, of the siime ; magn. f. 



4. Sciurus spermopkUinus, Dep. p,, m,, m^ sup. sin. ; magn. f. 



5. ,, ,, Anterior view of inf. incisor ; magn. 



6. „ „ Left mandibular ramus, inner view, nat. 



size. 



7. „ „ Left mandibular ramus, outer view, nat, 



size. 



8. ,, „ Pi, mj, m.^, mj, inf. sin., upper view ; 



magn. \. 



9. ,, ,, The same as fig. 8, inner view ; magn. f . 

 10. Nantwsciurns concinnus, Thos. (Isabella, Basiiaii, Philippine.-), type. 



(B.M. 1940 a. 1870/10 . 4.7.) dp m^ nio, m.^, inf. sin. ; magn. J. 



Plate XI. 



Fig. 1. Sciuropterus tephromelas, Giinth. Malay Peninsula. (B.M. 1885/8. 

 1.12(5.) Left mandibular ramus. Nat. size. From the inner side. 



2. The same, m^ ; magn. \. 



3. Sciuropterus afba/iensis, n. sp. (Middle Miocene of Grive-Saint-Alban.) 



Left mandibular ramus, from the inner side ; nat. size. 



4. The same from the outer side ; nat. size. 



5. The grinding-teetb of the same, upper view ; magn. f. 



6. Nannosciurus minutus, Du Chaillu. W. Afi-ica. (B.M. 1794 a. 



1861/7 . 29.19.) Superior grinding-teeth of the right side (p^, m^, raj, 

 va^) ; magn. f . 



7. Nannosciurus conainnus, Thos., juv. Superior grinding-teeth of the right 



side (di, mj, m,, m^) ; magn. f . 



