iJSG MAMMALIA. 



* Females having an abdominal pouclj. 

 Didelphis Virginiana. — The Virginian Opossum, or Sara- 

 GOY.— Plate VII. fig. 8.— Described, vol. II. p. 447. 



** Females without an abdominal pouch. 



Didelphis murina.— The Murine Opossum.— Plate XIV*. 

 fig. 5. — Fur yellow-gray above, very pale yellow beneath; eye? 

 surrounded with brown ; tail as long as the body and naked. 

 Inhabits Cayenne and Surinam. 



Genus 2 Chironectes. — Uliger. 



Generic Character. — Incisors ^^, canines \-\, the number 

 of grinders unknown ; cheek teeth pointed and cutting ; ears 

 naked J feet round, with five toes; nails sharp and bent ; the 

 posterior feet plantigrade and palmated ; thumb without a nail ; 

 tail long, cylindrical, prehensile, naked and covered with scales 

 Female with an abdominal pouch. 



Chironectes palmata. — The Yapock. — Plate XIV*. fig. 6. 

 — Fur brown above, with three transverse gray patches or 

 bands ; white underneath. Inhabits the banks of the rivers 

 Yapock and Guyane. 



Genus 3. — Dasyurus. — Geoffroy. 



Generic Character. — Incisory teeth |, canines Jz{» grinders 

 »-^; total 42. The incisors are small and regular; canines 

 large ; the two first grinders cutting, the others with points 

 on their crowns ; head conical and elongated ; fore feet with 

 five toes on each, furnished with crooked nails ; hind feet with 

 four toes and nails ; thumb very short, distant from the fingers, 

 and without a nail ; tail long, covered all over with hairs ; fe- 

 males with a marsupial pouch. 



Dasyurus macrourus- — The Spotted Dasyurus. — Plate VII. 



fig. 9 Fur bright chestnut-coloured, irregularly spotted with 



white ; hairs on tail long and spotted. Size of a cat. Inhabits 

 New Holland. 



Genus 4. — Gymnura. — Raffles. 



Creneric Character. — Incisory teeth ^, canines ^y^, molars |; 

 total 26. The incisive teeth large, subcylindric and remote, 

 short and compressed ; upper canines remote^ short, and conical ; 



