SICISTA 



539 



Hungary, Denmark and Norway this species is immediately distin- 

 guishable by the contrast between the colour of sides and back. 



1. Dobrudscha, Eoumania. Purchased (Pruliere). 86. 4. 2. 4. 



SICISTA TRIZONA Petenyi. 



1857. Sminthus vagus Blasius, Saugethiere Deutschlands, p. 302 (probably 

 not Mus vagus Pallas). 



1882. Mus trizonus Petenyi, Termeszetrajzi Fiizetek, v, p. 103 (Hungary). 



1882. Mus interzonus Petenyi, Termeszetrajzi Fiizetek, v, p. 103 (Alterna- 

 tive for trizonus). 



1882. Mus interstriatus Petenyi, Termeszetrajzi Fuzetek, v, p. 103 

 (Alternative for trizonus). 



1882. Mus tripartitus Petenyi, Termeszetrajzi Puzetek, v, p. 103 (Alterna- 

 tive for trizonus). 



1882. Mus virgulosus Petenyi, Termeszetrajzi Puzetek, v, p. 103 (Alterna- 

 tive for trizonus). 



1882. [Mus] tristriatus -Petenyi, Termeszetrajzi Puzetek, v, p. 103 (Alter- 

 native for trizonus). 



1910. Sieista subtilis Trouessart, Paune Mamm. d'Europe, p. 205 (probably 

 not Mus subtilis Pallas). 



Type locality. — Hungary. 



Geographical distribution. — Hungary ; Denmark ; * south- 

 eastern Norway.f Details of distribution very imperfectly 

 known. 



Diagnosis. — Least depth of rostrum behind incisors decidedly 

 greater than breadth of rostrum in same region ; crown area of 

 m l about three times that of premolar : sides essentially concolor 

 with back. 



Colour. — Back, sides and head uniform raw-umber with a 

 slight buffy tinge, this more noticeable on cheeks and sides of 

 neck than elsewhere ; back very inconspicuously " lined " with 

 black. The individual hairs of the underfur are slate-colour at 

 base (5 mm.), the tips (1 ■ 5 mm.) buffy raw-umber ; longer hairs 

 (12 mm.) black, the tips (2 mm.) colourless and with a silvery 

 gloss. Median dorsal line with clear black stripe about 3 mm. 

 wide, extending from crown to base of tail, better defined 

 posteriorly (except within a few mm. of base of tail) than 

 anteriorly, but not thrown into relief by lightening of background 

 along any part of its extent. Underparts light ochraceous-buff 

 without line of demarcation along sides, much dulled by 

 appearance at surface of slaty under colour. Ears essentially 

 concolor with back, but with a stronger admixture of black, the 

 rim clear light buffy. Feet a light indefinite buffy brown rather 

 paler than belly, the toes still paler. _ Tail obscurely bicolor, 

 sepia above, dull cream-buff below. 



Skull. — In general appearance the skull suggests that of 



* See Winge, Danmarks Pauna, Pattedyr, p. 65, 1908. 

 t See Collett, Norges Pattedyr, pp. 68-77, 1911. 



