MAMMALIA. 693 



Sp. Arctomys marmota SCHBEB., Mus marmota L., BUFF. vin. PI. 28, 

 SCHBEB. Sdugth. Tab. 207, Ccv. R. Ani., ed. til., Mammif. PI. 55, fig. 

 i ; the skeleton figured in PANDEB u. D'ALTON Vergl. OsteoL Heft v. 

 Tab. 6: the marmot; i feet long, tail 6"; greyish-yellow, top of the head 

 dark grey, tail at the base russet, at the tip brown, incisors yellow; lives 

 near the snow-line on high mountains of Europe ; they pass the winter in 

 their holes asleep. Compare on this animal GESNEB Quadrup. p. 743, 

 SCOPOLI Ann. hist. not. n. 1769, pp. 37, 38. Arctomys bobac, Mus bobac 

 PALL. Glir. Tab. 5 ; in Poland, Eussia and the North of Asia. The re- 

 maining sp'ecies are from North America, as Arctomys monax GM. (from 

 which Arct. empetra and pruinosus, according to the Prince of NEUWIED, 

 do not differ), SCHBEB. Sdugth. Tab. 210, GDEB. Iconogr., Mammif. PI. 

 24, fig. r. 



Spermophilus F. Cuv. Buccal pouches. Tail short or moderate, 

 with hair at the base and upper part of the sides close, short, at the 

 point and sides longer. (Species smaller and more slender.) 



Sp. Arctomys citdlus GM., Mus Citellus L., PALL. Glir. Tab. 6, SCHBEB. 

 Saugth. Tab. 211 A; in Bohemia, Austria, Hungary and Siberia; Arc- 

 tomys Hoodii SABINE, Sciurus tredecimlineatus MITCHILL, RICHABDSON 

 Faun. bor. Am. I. PI. 14; a prettily marked species from North America, 

 brown above with yellow longitudinal stripes, alternating with rows of 

 round yellow spots ; grey below, &c. 



This sub-genus, more numerous in species than the preceding, forms the 

 transition from the marmots to the squirrels. The marmots and squirrels 

 have much resemblance in their skull; the frontal bone is furnished with a 

 process descending behind the orbits. The skull of the marmots is, how- 

 ever, flatter and less broad between the orbits than in the squirrels. 



Phalanx III. Sciurina (in stricter sense). 



4 4 

 Anomalurus WATERH. Molar teeth - -^, complex, with 



crown quadrate, the lower grooved on the inside. Ears triangular 

 and oval, somewhat naked. Fore feet with four toes and hallucar 

 wart, hind feet pentadact ylous. Claws compressed, incurved. Hairy 

 skin expanded between the humerus and the hind feet, produced 

 from the soles to the thighs, and joining the tail at its base with 

 the thighs. Tail longer than half the body, clothed with rigid 

 hair, longer at the extremity, and covered below at the base with 

 a double row of horny scales alternate, imbricate. 



Sp. Anomalurus Fraseri WATEBHOUSE, Proceed, of the Zool. Soe. 1842, 

 pp. 125 127; Anomalurus Pelii TEMM. Esq. Zool. sur la c6te de Guine, 

 p. 146; black, grey below, head above the nose and the posterior margin 

 of the parachute pure white, tail long and pale russet; Anomal. laniger 



