Plate 7. 



•A.J.J.Wendeldel.etlitli. 



r.W. M.'rin.]i iiiipv. 



I — 5. Dactylomys dactyliiuis Ji. G. St. /lilairc. 



6 — II. Kannabateomys amblyonyx Nattercr. 



2. Upper molar series. 



3 and 9. Lower molar series. 



4 and 10. Right upper molar series, enlarged. 



5 and II. Right lower molar series, enlarged. 



