APPENDIX A. 



SYNOPTICAL LIST OF THE EXTINCT RODENTIA OF NORTH 



AMERICA. 



By J. A. Allen. 



The following list is intended to include all of the extinct Eodentia of North 

 America described prior to 1877. The Scinromorphs, Hystricomorphs, and Leporidse, 

 having been nearly all noticed at some length in the preceding pages of the present 

 series of monographs, it is deemed sufficient in the present connection to cite the 

 earlier pages of the present work, wherein they are more fully noticed. In respect 

 to the others, references are here given to the papers and works wherein they were 

 originally described or subsequently noticed, together with short notices of their lead- 

 ing characteristics so far as they are at present known. With our present imperfect 

 knowledge of the extinct forms here enumerated, it is impracticable to attempt any- 

 thing more than a compilation of the species as described by authors. 



GLI11ES SIMPL1CIDENTATI. 



SCIUROMORPHA. 

 SCIUKLDiE. 



SCIURUS CALYCINUS Cope. See anted,, p. 931. 



SCIURUS PANOLIUS Cope. See anted,, p. 932. 



SCIURUS RELICTUS Cope. See anted,, p. 932. 



TAMIAS L^VIDENS Cope. See anted, p. 932. 



ARCTOMYS VETUS Marsh. See anted, p. 933. 



PARAMYS ROBUSTUS Marsh. See anted, p. 934. 



PARAMYS LEPTODUS Cope. See anted, p. 934. 



PARAMYS DELICATUS Leidy. See anted, p. 934. 



PARAMYS DELICATIOR Leidy. See anted, p. 934. 



PARAMYS DELICATISSIMUS Leidy. See anted, p. 935. 



943 



