48 Baiif/-^ — Nof/s on I J/ n. rex of I'j isle I'll North Anicrirn. 



hairs ; skull short and round ; audital bulhe small, flat and hroad ; nasals, 

 taken together, cone shai)ed (the nasals of Felis, taken together, are 

 broadly truncate posteriorly) ; no distinct lobe on inner side of smaller 

 upper premolar. 



Subgenus LYNX Rafinesque. 



Feet and hands very large, the pads small ; tail very short ; pelage 

 long and loose ; ear with long pencil of hairs (even in the very young 

 kittens) ; skull broad ; rostrum wide ; audital bulla? very small and fiat ; 

 palatal exposure of presphenoid broadly flask shaped (Fig. 1) ; anterior 



Fig. I.— Po.stpalatal region 

 of L\nx. 



Fig. 2.— Po.stpalatal region 

 of Ceivaria. 



condyloid foramen not conffaetH with foramen lacerum posterius ; maxilla 

 separated from nasals by the meeting (or nearly meeting) of the descend- 

 ing arm of frontal and ascending arm of premaxilla ; canine teeth slender ; 

 lower molar tooth very large. 



Subgenus CERVARIA Gray. 



Feet and hands small (in JJoridamts) to medium (in rufiis) the pads 

 large ; pelage full l)ut close ; tail medium (longer than in Lynx) ; ear with 

 a shoi't pencil of hairs; skull narrow ; rostrum narrow and ' ni{)ped in ' 

 from sides ; audital bulhe deep and long ; palatal exposure of prespiienoid 

 strap shaped or slightly triangular (Y\g. 2) ; anterior condyloid foramen 

 co)ifii(nd with foramen lacerum 2)osterius ; maxilla touching na.sals for 

 some distance (much as in genus Felin) ; canine teeth strong ; lower molar 

 tooth small. 



In North America the subgenus Li/iix contains the northern species 

 and the suligenus Cemiyia the southei'n species. The same is probably 

 true of the Eurasian members of the genus Lynx, although I have been 

 unable to find a description of the skull of any of th6 more southern 

 species. Mr. True examined some skulls of the Swedish Lynx and found 

 that it belongs in the restricted subgenus Lynx. 



The sul)genus Lynx is represented in eastern North America by two 

 forms : 



1. Lynx canadensis (Geoff.) occu])ying the whole of Boreal North 

 America from Maine and northern New York to Alaska, but now very 

 rare and apparently becoming extirpated in the east. 



