SOME MAMMALS FROM JUGOSLAVIA. 865 



42. On some Miimmals from Jugoslavia. 

 By Ivou G. S. Montagu, F.Z.S. 



[Recnivcd Angust 27, 1923 : Read November 6, 1923.] 



Systematic Index. ,, 



I'age 



Talpa ceeca c<eca Snvi 860 



Glis fflis postns, subsp. n 866 



JSvotomi/s fflareolus sohrus,a\\h3p.i\ 867 



Mvotomj/s fforka, sp. ii 867 



Mici'otvs a grest is functus, subsp, n 8C8 



Microtus ai-valis arvalis Pallas 808 



Alicrotus arvalis levis Miller 869 



Microtus arvalis cali/psus, swhap. n 869 



(Measurements throughout are in millimetres.) 



Among the areas least fully inspected in the preparation of 

 G. S. Miller's Catalogue * (1) were those parts of the Balkans 

 now grouped together as Jugoslavia. In consequence of the 

 generosity of Mr. TTvarofi', of Lord Swaythling and Mr. Cotton, 

 material from these regions has recently been added to the 

 British Museum collection. The former made possible the pur- 

 chase of a pnrt of the collection foimed b}^ V. Martino in Croatia, 

 Montenegro, and Serbia; the latter made possible a small sen le 

 expedition to Slovenia and Croatia, undertaken by I. Montagu 

 and W. E. C. Cotton. 



In addition to the specimens described hei^e and by Y. and E. 

 Martino in (2), and to specimens not of immediate interest, these 

 collections include abunda,nt series of A2)odemus. No account is 

 given here of these series, since they are all leferable to the i-aces 

 A. s. sylvaticus, A. s. dichrurus, A. ar/rarius, and vl. epimelas, and 

 do not materially aft'ect existing knowledge of the range of those 

 forms. 



The described material gives a nmiiber of noteworthy results. 

 Ifc indicates the presence in the Croat highlands of 2\ cceca, of a 

 peculiar dormouse resembling that of southern Italy, and of a 

 remarkable new species of Evotomys. An E. f/la7-eolus of the 

 Croat lowlands, resembling chat of the western Alps, is recognized 

 as peculiar, as is also a race of II. agrestis from the Slovene Alps. 

 Tlie presence of the northern and western M. a. arvalis in the 

 Croat lowlands, and that of the southern and eastern M. a. levis 

 in the Slovene and Croat highlands, together with the occurrence 

 of a new form resembling the former in eastern Serbia, throws 

 important light on the distribution of these two subspecies. 

 These circumstances ma}^ indicate an overlapping of the ranges 

 of the two forms, but, in the writer's opinion, more probably 



* (1) Catalo-ue of the Mammals of Western Europe. H.Af. (N.H), 1913. 

 (2) Annals and I\Iaga/.ine of Natural IIisto:y, 9th ser. ix. p. 413, 1022. 



