SPECIES OF MAMMALIA. 



cies by Desmarest), the Ash-coloured Ai, and others men- 

 tioned in the Supplement, and figured in this work. 



713. 2. B. Didactylus (the Unau.) Two long nails only 

 on the fore feet ; lower jaw rather pointed ; generally of a 

 brownish-gray colour; and from two to three feet long; 

 soles of the feet naked. 



Tardigradus Ceylonicus Catulus, Seba Thes. i. 54. Bra- 

 dypus Didactylus, Lin. Simia Personala, Klein Quad. 42. 

 Chselopus, Illig. Prod. 



Unau, Buffon, xiii. Two-toed Sloth, Pen. Quad. 242. 



Icon. Seba, I. c. Buff. I. c. pi. 1. Schreb. tab. 05. 



Inhabits South America. 



Obs. For notice of the Little Unau of Buffon, and other 

 varieties, see Supplement. This is the type of Illiger's 

 genus Chalopus, and Bradypus of F. Cuvier, and the Unaus 

 of Gray, in the Medical Repository. 



Section II. E. Effodientia, or Digging Edentata. 

 Genus II. — Dasypus. 



Incisive teeth ^ ; or | canines °U ; cheek-teeth varying 

 in the several species in all from 28 to 68 : these teeth cylin- 

 drical, separate, and without enamel on the inner side; 

 head long, mouth small, tongue partially extensible; body 

 altogether covered with a shell or plate armour; five toes 

 to the hind-feet, four or five to the fore-feet, with long 

 nails for digging ; mammaj two or four ; tail rather long, 

 round; stomach simple, intestines without cagca. 



Living in woods on roots and putrid animals, rolling 

 themselves up, for protection. Confined to the warm parts 

 of South America. 



714. 1. D. Apar (the Apara, or Three-banded Armadillo.) 

 Cheek-teeth f,^ ; generally with three moveable transverse 

 bands to the body ; tail short and flat ; five toes on all the 

 feet. 



27,5 



