SCIURUS 



915 



Geogrfqjhical dislrlhution. — Northern and north-central Spain 

 (provinces of Leon, Vitoria, Huesca and Burgos) ; limits of range 

 not known. 



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

 nearly equal to that of S. v. infuscatus ; 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 bi-own, 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-buffand clay-colour. Cheeks drab. Ear-tufts 

 l)lackish brown, sides of neck pale dull wood-brown. Inner 

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

 hazel. Feet 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 

 anuulations. 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 suffusion. 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. 



Skull 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, 235 and 250; tail, 190 

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

 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 : — 

 France : Solf^rino, Landes, 1 ; St. Jean de Luz, Basses-Pyrenees, 1. 



(These specimens intermediate between numantius and russus.) 



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.) ; 



Pinares de Quintanar, Burgos, 7. 



9. Solf(irino, Landes, 0. Thomas (p). G. 4. 1. .^ 



France. {A. Robert.) 



6. 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). 



* Misprinted 230 in original description. 



3 N 2 



