I ; 



X* MONOGRAPHS OF NORTH AMERICAN RODBNTIA. 



Series III— IIYSTRICOMORPIIA: Hystricine Rodents. 



Family VIII.-CASTOROIDIDA : (K088IL.) 



Pages. 



MONOGRAPH Y.— Allen 416-426 



Family IX.-HVSTBICIDiKt I'oncui'iNXS. 



MONOGRAPH III.— Allen 379-398 



Suborder DUPLICIDENf ATI : Leporine Rodents. 



Family X.— JLEPOBIDiE I IIaiiks. 



MONOGRAPH II.— Allen '. 265-378 



Family XL-LAGOMVID^S;: I'ikas. 



MONOGRAPH lY.— Allen 399-414 



