EPIMYS 853 



form have been artificially though unintentionalh^ transplanted 

 into the area of the other, and to this circumstance, rather than 

 to individual variation or normal intergradation, should be 

 attributed the intermediate specimens now so abundantly found. 



EplMVS KATTIIS RATTUS Linna'US. 



1758. [Mns] rattus Linnteus, Syst. Nat., i, 10th od., p. Gl (Sweden). 



1833. Mus tectorum var. fuliginosus Bonaparte, Iconogr. Faun. Ital., i, 



fasc. 3, pi. 22, fig. 1, name on plate only (Italy, no exact locality). 

 1842. Mus subarrulciis Lesson, Nouv. Tabl. du Regne Anim., ^lamm., 



p. 138 (Rochefort, Charente-Inferieure, France). 

 1857. Mus rattus Blasius, Saugethiere Deutschlands, p. 317. 

 1867. Rattus domesticus Fitzinger, Sitzungsber. kais. Akad. Wissensch. 



Wien, Matb.-Naturwiss. Classe, lvi, pt. i, p. 64 (Substitute for 



rattus). 

 1867. [Rattus domesticus] fuscus Fitzinger, Sitzungsber. kais. Akad. 



Wissensch. Wien, Math.-lSTaturwiss. Classe, lvi, pt. i, p. 64 



(Germany). 

 1867. [Rattus domesticus'] varius Fitzinger, Sitzungsber. kais. Akad. 



Wissensch. Wien, Math.-Naturwiss. Classe, lvi, pt. i, p. 64 



(Germany). 

 1867. [Rattus domesticus] fitlvaster Fitzinger, Sitzungsber. kais. Akad. 



Wissensch. Wien, Math.-Naturwiss. Classe, lvi, pt. i, p. 64 



(Austria and Germany). 

 1867. [Rattus domesticus] albus Fitzinger, Sitzungsber. kais. Akad. 



Wissensch. Wien, Matb.-Naturwiss. Classe, lvi, pt. i, p. 65 



(Austria, Hungary, Germany). 

 1867. [Rattus domesticus] ater Fitzinger, Sitzungsber. kais. Akad. 



Wissensch. Wien, lvi, pt. i, p. 65 (Germany). 

 1902. Mus alexandrino-rattus Fatio, Revue Suisse de Zoologie, x, p. 402, 



December 30, 1902 (Ticino, Switzerland). See Mottaz, Bull. Soc. 



Zool. de Geneve, i, p. 163, November 35, 1908. 

 1905. Mus rattus ater IMillais, Zoologist, 4th ser., ix, p. 205, June, 1905 



(London, England). Type in British Museum. 

 1908. Epimys rattus Satunin, INIitth. Kauk. Mus., Tiflis, iv. Lief. 1-2, 



p. 112. 

 1910. Mus {Epimys) rattus and M. (E.) rattus ater Trouessart, Faune 



Mamm. d'Europe, p. 143. 



Ti/])e locality. — Upsala, Sweden. 



Geographical distribution. — Europe north of the Mediterranean 

 region ; occurring in isolated colonies and everywhere being 

 replaced by Epimys norvegicns. 



Diagnosis. — General colour slaty, the back darker, frequently 

 almost black. 



Measurements. — Adult male and female from South Ronald- 

 shay, Orkney Islands: head and body, 189 and 188; tail, 20G 

 and 205; hind foot, 36-7 and 36; ear, 24-5 and 24. Adult 

 male from Lundy Island, Devonshire : head and body, 209 ; tail, 

 233; hind foot, 40; ear, 25-5. Adult male from London, 

 England (type of ater Millais) : head and body, 235 ; * tail, 235 ; * 



* From :\Iillais. 



