740 KODBNTIA 



(U.S.N.M.) ; near Stockholm, 6 (B.M., U.S.N.M. and Stockholm) ; 

 Aspvik, 1 ; Drottningholm, 1 (U.S.N.M.). 

 Finland : — Drumso, 1. 



Remarks. — Arvicola terrestris is readily distinguishable from 

 A. amphibius by its smaller size, brighter coloured cheeks, and by 

 the slightly fossorial modification of the skull. In habits it is 

 less strictly aquatic than the British animal. 



1. Vefsen, Nordland, Nor- E. G. B. Meade 5. 7. 1. 3. 



way. Waldo (c & p). 



6 S, ?, Holme, Mandal. E. J. Cuninghame 8. 8. 9. 19-29. 



(c & p). 



6. Upsala, Sweden. Lord Lilford (p). 0. 5. 15. 1. 

 (E. Kolthoff.) 



2. Near Stockholm. Prof. Sundevall (p). 49. 11. 1. 12-13. 

 1 al. Aspvik. Stockholm Museum 90. 8. 1. 14. 



(E). 



9 Drumso, Finland. Dr. Schulman(c&p). 1. 6. 9. 3. 



ARVICOLA ITALICUS Savi. 



1839. Arvicola amphibius var. italica Savi, Nuovo Giorn. de' Letterati, 

 Pisa, xxxvii. No. 102, p. 202 (p. 5 of separate), February 1839 (for 

 date see de Selys-Longchamps, Mierommalogie, p. 93). Vicinity 

 of Pisa, Italy. 



1839. Arvicola pertinax Savi, Nuovo Giorn. de' Letterati, Pisa, xxxvii, 

 No. 102, p. 203 (p. 6 of separate), February, 1839 (MS. synonym 

 of italica). 



1845. ? [Arvicola amphibius var. minor De Selys-Longchamps, Atti della 

 sesta Eiunione degli Scienziati Italiani, Milano, 1844, p. 322 

 (nomen nudum). 



1910. Arvicola italicus Miller, Proc. Biol. Soc. Washington, xxin, p. 20, 



March 23, 1910. 

 910. Arvicola italicus Trouessart, Faune Mamm. d'Europe, p. x. 



Type locality. — Vicinity of Pisa, Italy. 



Geographical distribution. — Italian Switzerland and northern 

 Italy, south at least to the vicinity of Pisa. Details of distribu- 

 tion not known. 



Diagnosis. — Similar to Aroicola terrestris, but teeth not so 

 heavy and colour not so dark, the underparts washed with 

 yellowish brown instead of rusty, the cheeks not contrasting 

 noticeably with surrounding parts. 



Colour. — Elements of colour of upper parts essentially as in 

 Arvicola terrestris, but broccoli-brown much in excess of black, 

 the latter producing a slight effect of grizzling or " lining," but 

 never sufficiently dominant to make the general colour approach 

 seal-brown ; sides light, buffy, slightly grizzled wood-brown, 

 becoming a little more yellowish on cheeks. Underparts light 

 slaty grey washed with buffy on chest and belly. Feet a light 

 hair-brown, sometimes tinged with drab. Tail obscurely bicolor, 

 dark brown above, greyish below. 



