302 Dr, A* HaM on the Mammals and Birds 



men ; parachute fringed with white ; tail light yellowish brown, 

 distichous beneath, the fur dense ; eyes large, black ; incisors 

 orange coloured, compressed ; fur of the whole body exceedingly 

 soft, in fact almost silky. 



Genus Mus. — Suh genus Arctomys. 

 Sub. gen. char. Incisors f , canines none, molars |f = 22, 

 Incisors strong, anterior surface rounded ; molars with ridges and 

 blunt tubercles ; head large ; eyes large ; no cheek pouches ; ears 

 short ; body thick and heavy ; paws strong ; fore feet 4-dactyle 

 with a rudimentary thumb ; hind feet 5-dactyle ; nails strong and 

 compressed ; tail short. 



A. monax. Wood chuck or Ground hog. 



Mus monax of Linnseus ! 



Glis fuscus. 



Marmota Bahamensis of Brisson ! 



Marmota Americana of Gmelin I 



v.s.p. Length of ])ody 17 inches; of tail 8 inches. Fur 

 long msty brown with grey tips; face paler, of a blueish ash co- 

 lour; inferiorly grey but lighter; ears short, broad, having a 

 cropped appearance, much imbedded in the fur ; tail about half 

 the length of the body, dark brown and bushy towards the ex- 

 tremity. 



A. empetra. Quebec marmot. 



Mus empetra of Pallas ! 



Glis Canadensis of Erxlebein ! 



v.s.p. Length of body 17 to 20 inches; of tail 7 inches. 



Dorsal fur dark at the base, yellowish in the middle, black near 



the tips, and then tipped with grey, giving the animal a hoary 



appearance, the grey tips disappearing towards the tail ; sides of 



the upper lip, point of chin, cheeks and sides of neck, of a soiled 



reddish white colour, gradually mixing with the dark colour of 



the head ; throat, breast, belly, fore and hind feet of a reddish 



orange or chestnut without mixture ; hair on the tail dusky 



throughout, longer on the back, and darker towards the tip ; 



tail rather flat, rounded at the tip ; legs short and muscular ; toes 



with long sharp claws, those of the four feet being longest and 



most curved. 



Sub genus Mus, 



Sub gen. char. Incisors |, canines none, molars f | = 16. 

 Molars with tubercles j ears oblong or round, nearly naked; 



