SCIURUS 915 



Gi'0(/rnp]iica] disirihiition. — Northern and north-central Spain 

 (provinces of Leon, Vitijria, Huesca and Burgos) ; limits of I'auge 

 not known. 



Diagnosis. — Size greater than in the central European forms, 

 nearly equal to that of S. v. infiiscatus ; colour in light phase not 

 so dark as in S. v. infuscatus, and tail never with whitish median 

 area on lower surface. 



Colour. — Light phase (type) : head, back, sides, and outer 

 surface of legs a uniform indistinctly grizzled brown, intermediate 

 between the broccoli-brown and wood-brown of Ridgway ; a faint 

 russet tinge along middle of back. Muzzle and fore part of face 

 between ochraceous-butFand clay-colour. Cheeks drab. Ear-tufts 

 blackish brown, sides of neck pale dull wood-brown. Inner 

 surface of legs and ill-defined stripe along sides of belly dull light 

 hazel. Eeet like inner side of legs, but paler. Tail a very dark 

 rufous, approaching the chestnut of Ridgway, especially near 

 base, but rather more red ; median portion of tail below lighter, 

 the hairs buffy grey through basal half, each with two drab 

 annulations. Underparts buffy white, the chin and interramial 

 region light ecru-drab. Dark phase : tail clear bluish black, very 

 faintly grizzled along median region below ; back much darkened 

 by a blackish suftusion. Colour variation shows itself chiefly in a 

 greater or less tendency to assume the dark phase. Occasionally 

 the hazel of sides brightens almost to a dull rufous and spreads 

 to lateral portion of dorsal area, the region immediately bordering 

 white of ventral surface becoming nearly buff. Ear-tufts either 

 blackish or reddish. 



Shdl and teeth. — -The skull and teeth are larger than those of 

 the central European races, but in form they show no tangible 

 peculiarities. 



Measurements. — Type (adult female) : head and body, 2.37 ; 

 tail, 200 ; * hind foot, 66 ; ear, 34. Two other adult females 

 from the type locality: head and body, 23-5 and 250 ; tail, 190 

 and 210; hind foot, 63 and 64; ear, 34 and 34. Adult malo 

 from Panticosa, Huesca : head and body, 262 ; tail, 242 ; hind 

 foot, 64 ; ear, 36. For cranial measurements see Table, p. 922. 



Specimens examined. — Twenty-two, from the following localities :^ 

 Prance : Solf^riuo, Landes, 1 ; St. Jean de Luz, Basses-Pyrenees, 1. 



(These specimens intermediate between nnmantius and ritssits.) 



Spain : Sierra de Dubros, Asturias, 2 ; Pajares, Leon, 1 ; Arrechavaleta, 



Vitoria, 2 ; Panticosa, Huesca, 6 ; Palacios de la Sierra, Burgos, 2 (U.S.N.M.) ; 



i'inares de Quintanar, Burgos, 7. 



?. S o 1 f e r i n o, Landes, O. Thomas (p). 6. 4. 1. .38. 



France. (A. Robert.) 



S. St. Jean de Luz, Basses- W. Eagle Clarke (p). 92. 10. 30. 1. 



Pyr6n6es. 



6, 9. Sierra de Dubros, Astu- J. W. Richmond Lee 97. 1. 7. 1 2. 



rias, Spain. (c & p). 



* ]\Iisprinted 230 in original description. 



3 N 2 



