new European Voles. 205 



skull and vevy small audita! bullae. Viewed from the side 

 the skull is as flat as that of Filymys savii; dorsal profile 

 sli<flitly but evenly convex, the nasals not so abruptly 

 sloping as usual ; rostrum excessively shallow immediately 

 behind nasals, its least depth barely exceeding greatest com- 

 bined breadth o£ nasals ; length of braiii-case to posterior 

 edge of interparietal barely equal to breadth under zygomata, 

 the general outline subcircular ; occipital region oblique 

 posteriorly, so that condyles are plainly visible when skull 

 is viewed from above, very low and wide in posterior 

 view; audital bulla very small and low, the greatest diameter 

 contained about four times in condylo-basal length of skull 

 (aljout three to three and one half tiuies in lusitanicus, mnrice, 

 and pelandonias) ; teeth as in the related species ; external 

 characters apparently showing no special i)eculiarities. 



Measurements. — Type. Head and body 85 mm. ; tail 25 ; 

 hind foot 13 ; ear from meatus 8. Skull : condylo-basal 

 length 22"4 ; zygomatic breadth 14 ; interorbital constriction 

 3'G ; occipital breadth 11*2 ; occipital depth (median) 5*4 ; 

 palatal depth (r8 ; nasal 6"2 ; diastema 6-4 ; mandible 14"8 : 

 maxillary tooth-row 5*6 ; mandibular tooth-row 5*G. 



Specimens e.camined. — Four, all from the type locality. 



Pitymys ibericus centralis, subs]). n. 



Type. — Adult male (skin and skull). Collected at Santo 

 Domingo do Silos, Province of Burgos, Spain (altitude 

 980 m.). October 15, 1906, by G. S. Miller. Original 

 number 7313. 



Gharoclers. — Not so large as li(t/mus ibericus ibericus 

 (hind foot U) to 17'2 mm. instead of 17 to IS mm) ; colour 

 hair-brown, usually tinged with buffy, but never so pale as 

 in the typical race ; feet whitish, in rather noticeable contrast 

 with back. 



Measurements. — Type. Head and body 102 mm. ; tail 24 ; 

 hind foot 1()'8 ; ear from meatus 8. Skull : condylo-basal 

 length 25 ; zygomatic breadth 15 (ca.) ; interorbital breadth 

 4*2 ; occipital breadth 12 ; occipital de{)th 7'0 ; palatal depth 

 80 ; luxsal 7"0 ; diastema 8'4 ; mandible 17*2 ; maxillary 

 tooth-row G'O ; maiulibular tooth-row t)-2. 



Specimens e.camined. — Twenty, all from the type locality. 



Remarks. — True Pitymys ibericus is a large pallid form, 

 probably confined to the hot coast district of Murcia and 

 Alicante. It is strikingly different from the small Oranada 

 animal, its nearest geographical ally, as well as from speci- 

 mens from Jerez de la Frontera, Seville, Valencia, and 

 Burgos. It is probable that more than one race is represented 

 among the members of this group occurring through (,'cutral 

 and North-western Spain. 



