i 1; 



MUBIDiE— ARVICOLIN.E— MY0DE8 OBBN8I8. 



241 



MYODES OBENSIS, Brants. 



Mgodet obentit, Branth, Muizon, 1637, 55.— Kkybkiimno niul Blasius, Witb. Europ. vi, 1840, pp. vii and 

 32. — MiDDKNDORFF, Slliiriaclie Heme, ii, pt. iii, 1H5:>, U9, pi. ii, f. 7, 8, 0, and pla. viii, ix, x, f, 

 2.— Baihd, M. N. a. 1857, 55U.— CoUES, Proo. Acad. Nat. 8ci. Phila. 1874, 195. 



Jnicola (OmryokiM) heholiit, RicnAiiiMON, F. B.-A. i, le-iS, 128. 



OcoryoAiM heleolut, AuD. &, Bach. Q. N. A. iii, \Ka, 84, pi. cxx, f. I. 



iljioda ketvoliu, Dall, Alaska and its Renourous, 187U, 577, 



Articola (Oeorgchui) liimuoronalui, Richardson, App. Parry's Sd Voy. 1825, 309; F. B.'A. i, 1829, 130. 



Otorgehui tHmuoronaU$, \vd. & Bach., Q. N. A. iii, 1853, 8C, pi. cxx, f. 2, 3. 



Ufodet ItimucroHatu, Daix, Alaska and iU Resources, 1870, 577. 



jifyode* alfto^HMH*, Waoner, Suppl. Sohraber, iii, 1843, 602. . " ' 



DiAONOiiis. — M. auriculatus, poUice ungue di'prcsso obtuso Itgulato instructor 

 unguibus digitorum manus 3"'-4" elongalix xed simjiltcis, j>edibus modtc'c hir- 

 sutis, vertebris caudte pedibus breviuribus; notao concolore,Jlavo-ferrugineo in 

 capite obscuriore, gaslrao dilutiore, pedibus fusck. AT. lemtno staturd formdque 

 par; long. tot. 4-6 poll.,, capitis li-1 J, manus cum un^ue longissimo |-i, pedis 

 i-i, caudtB nudee i-i, caudtB comatte |~s. 



Had. — America Septentrionalis regionibus ocddentali-borealibus. Asia. 



Form strictly that of the Norway lemming; ears with a perfectly-devel- 

 oped conch, though small (about \ high on the back, \ from the notch in 

 front) and buried in the fur; fore feet hairy on top, the longest hairs reach- 

 ing the ends of the claws, never much when any longer; palms mostly nuked, 

 nearly as in ordinary Arvicola, and tuberculnte; pollex obsolete, but in its 

 place a very large appressed strap-shaped claw, with obtuse or truncate end, 

 sometimes showing two or three minute points ("Irimucronatus"); all the 

 other claws simple (never showing the peculiar quasi-duplication of those of 

 Cuniculus torquatus), arched, acute, longer than in Arvicola, never so decidedly 

 fossorial as in Cuniculus; third finger longest, fourth nearly as long, second 

 reaching to base of third claw, fiflh much shorter still; hands, including claws, 

 only about f the feet; feet above, like the hands, hairy to the ends of the 

 claws, or the longest hairs slightly surpassing the claws; soles incompletely 

 furry, the bases of the toes naked; second, third, and fourth toes subequal 

 and longest; fifth about reaching base of fourth; second shorter still. Tail- 

 vertebra) shorter than foot, with the hairs equal to or rather longer than foot; 

 copiously comous, the terminal pencil frequently longer than the vertebral 

 portion. Pelage long, fine, sofl, and mollipilose, the longer hairs quite lus- 

 trous; whiskers about equaling the head, very delicate, not numerous; muffle 

 completely hairy except the nasal papillae. 



Entire upper parts uniform rich ruddy rust color, sometimes more 

 10 H 



Ii 



iii 

 I. 



m 



