lOO • MILLER 



hercynicus in both cranial characters and color that I hesitate to give 

 it a trinomial name. So far as known it is confined to the low 

 country lying between the Alps and the Jura, where it is probably in- 

 sulated. If intergradation with E. hercynicus hercynicus does occur 

 it is to be looked for in the region about St. Gallen or in extreme 

 southwestern Bavaria. The two specimens from St. Gallen though 

 closely agreeing with the type in color show an approach to the usual 

 narrow form of skull. At Mai'xheim, Bavaria, about 50 miles northeast 

 of St. Gallen, E. h. hercynicus occurs in its most extreme phase. 



EVOTOMYS HERCYNICUS HERCYNICUS (Mehlis). 



1831. HyfiudcBus hercynicus yi'EHiAS, Isis, 1831, p. 876., 

 1857. Arvicola glareolus Blasius, Fauna der Wirbelthiere Deutschlands, i, 

 Saugethiere, p. 337 (part). Not Mies glareolus Schreber. 



Type locality. — Harz Mountains, Germany. 



Geographic distribution. — Dry interior region of Germany and 

 western Russia. Limits of range not known. 



General characters. — Most brightly colored of the races of Evo- 

 tomys hercynicus. Size rather large (hind foot 19 (iS), total length 

 140) ; tail forming 30-33 percent of total length. Red dorsal area in 

 both pelages well defined and narrow, rufous, not intermixed with 

 gray. Belly very slightly washed with buff. Sides and ruinp in 

 summer pelage stro7tgly contrasted ivith back. Tail always brown 

 above. 



Color. — Summer pelage: dorsal stripe narrow and well defined, 

 not tending to spread over sides. It is rufous slightly varied with yel- 

 lowish wood-brown, and rather thickly sprinkled with black-tipped 

 hairs. Face, cheeks and sides pale yellowish wood-brown tinged with 

 gray and fading to grayish white on belly. Rump like sides, strongly 

 contrasted with dorsal stripe. Feet grayish white. A dark shade at 

 ankle. Sides of muzzle essentially like cheeks. Ears thinly haired, like 

 dorsal stripe in color. Tail sharply bicolor, brown above (darker at 

 tip), soiled white below. Winter pelage: dorsal stripe slightly less 

 sharply defined than in summer, the rufous paler and warmer, consid- 

 erably varied with yellowish wood-brown, but very inconspicuously 

 sprinkled with Ijlack-tippcd hairs. Face, cheeks, and sides more yel- 

 lowish wood-brown than in summer, and scarcely tinged with gray. 

 Rump slightly suffused with color of dorsal area, and tlierefore less 

 contrasted with back than in summer. Feet pure white. 



Skull. — Measurements of an adult ( <? ) skuH from Brunswick, 

 Germany: greatest length 24 ; b:|sal length 33.2; basilar length 30; 



