SCJURUS. MAMMALIA. 125 



black ; body marbled above with confluent black and white spots ; 

 beneath ferruginous. One foot long ; tail lour inches. Canada. 

 App. Franklin's Voy. 



A. Iridecimlineala, Harlan. (S. tridecimlineatus, Desm.) Fur deep- 

 chestnut above, striped with six white lines, alternating with an 

 equal number of longitudinal rows of white spots; white below. 

 Faun. Amer. 164; 



Gen. 106. SCIURUS, Lin. Cuv. 



Incisors f , canines g-g, molars f-f =r 22. Inferior incisors com- 

 pressed laterally ; molars tubercular ; body elongated ; head 

 small ; ears erect, rounded; eyes large ; fore-feet with four long 

 toes with compressed crooked nails and a tubercular thumb ; 

 hind-feet very large, with five toes ; tail long, often with hair 

 disposed in two rows ; two pectoral and six ventral mammae. 

 * Tail distichous. 



S. vulgaris, Lin. The Common Squirrel. Fur reddish above, white 

 below; ears pencilled with long hairs. Europe and North of Asia. 



Several varieties of the squirrel have been noticed, varying in different shades of 

 colour and markings from fawn-colour to black. The colour sometimes changes 

 with the season Buff. vii. pi. 32. 



S. Alpimts, F. Cuv. Fur deep brown., varied with yellowish white 

 above, white beneath ; feet yellow, with a yellow band separating 

 the white of the neck and the gray of the limbs from the brown 

 of the back ; ears pencilled. Pyrenees F. Cuv. Mam. 



S. cinereus, Desm. The Gray Squirrel. Fur ash-coloured, white 



below ; ears without pencils of hair. Ten inches long. N. 



America Shaw. ii. pi. 147. 



Var. With a red line on the back. S. rnlrolineatus. Desm. 

 S. capi&tralus, Bosc. Body ashy ; head black ; muzzle, ears, and 



belly white. S. Carolina Brown, Illust. pi. 47. 

 Van A. Colour all black. Var. B. With a black belly. Var. C Variegated 



with red, orange colour, and white. 



S. rujiventer, Geoff. Fur gray above, bright red below; feet brown ; 

 tail shorter than the body. Size of the European Squirrel. 

 North America. 



S. Ludovicianus, Curtis. Body and upper part of the tail dark gray ; 

 belly, legs, thighs, and under part of tail reddish brown ; tail 

 longer than the body, very broad. N. America. Bartons Jour- 

 nal, vi. 47. 



S. grammurus, Say. Body cinereous ; fur very coarse ; three black 

 lines on each side of the tail. N. America. Say and Long, vi72. 



S. laterally, Say. Fur brownish cinereous above ; sides marked 

 with dull yellowish stripes. N. America. Say and Long, vi. 46. 



S. quadrivittatus, Say. Head brownish, with four white lines; sides 

 fulvous, whitish beneath. N. America. &?# and Long, vi. 45. 



