4 CALUROMYS. METACHIRUS. 



Genus 3. Cnlitromys. 



Caluromys Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1900, p. 189. 

 Type DiJclphis! philander Linnaeus. 



9. Caluromys alstoni Allen. 



Calnroinys alstoni Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1900, 

 p. 189. Elliot, Mamm. Middle Amer. W. Indies, F. C. M. 

 Pub., iv, Pt. i, 1904, p. 9, pi. i. Zool. Ser. 



Didelphys cincrcus Alston, Biol. Centr. Amer., Mamm., i, 1880, 



p. 199, pi. xxi. (nee Temm.) 

 ALSTON'S OPOSSUM. 



Type locality. Tres Rios, Costa Rica. 



Geogr. Distr. Costa Rica, Central America. 



10. Caluromys derbianus (Waterhouse) . 



Didelphys derbianns Waterh., Jard. Nat. Libr., Mamm., xi, 1841, 



p. 97. 

 Caluromys derbianus Elliot, Mamm. Middle Amer. & W. Indies, 



F. C. M. Pub., iv, Pt. i, 1904, p. 9, fig. in. Zool. Ser. 

 EARL OF DERBY'S OPOSSUM. 

 Type locality. Unknown. 

 Geogr. Distr. Nicaragua in Central America to Peru in South 



America. 



('<tliin>iiti/K luni <JIT iinlliiliix (Thomas). 



Philander lanigcr pallidus Thomas, Ann. Mag. Nat. Hist., ;th Ser., 



iv, 1899, p. 286. 



Caluromys laniger pallidus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 

 1900, p. 189. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., iv, Pt. i, 1904, p. 10. Zool. Ser. 

 PALE WOOLLY OPOSSUM. 



Type locality. Bogava, Chiriqui, Panama. Altitude, about 750 

 feet. 



Geogr. Distr. Southeastern Central America. 



Genus 4. >!<>t aHiirus. 



Metachirus Burin., Syst. Uebers. Thier. Bras., i, 1854, p. 135. 

 Type Didelphys nudicaudata E. GeofTrny. 



* 



11. Metachirus nudicaudatus (Iv. (ieoffroy). 



Didelphys m<J/;M. /.;/<; V.. Geoff., Cat. Mus. Paris, 1803, p. 42. 

 Didelphis! myosurns Tcinin., M<n. Mamm., i, 1827, p. 38. 



