1902.] Allen, Opossums of the Genus Didelphis. 257 



5. Didelphis mes-americana tabascensis Allen. Southern 



Mexico and Guatemala. 



6. Didelphis yucatanensis Allen. Yucatan. 



7. Didelphis yucatanensis cozumelce Merriam. Cozumel 



Island, Yucatan. 



8. Didelphis richmondi Allen. Nicaragua. 



9. Didelphis marsupialis Linn, (restr.). Guiana and 



eastern Venezuela. 



10. Didelphis marsupialis insularis, subsp. nov. (p. 259). 



Island of Trinidad and Lesser Antilles. 



11. Didelphis marsupialis colombica Allen. Eastern Co- 



lombia and (probably) northern Venezuela. 



12. Didelphis marsupialis cauccB Allen. Southwestern 



Colombia. 



13. Didelphis' marsupialis etensis, subsp. nov. (p. 262).- 



Pacific coast region, west of the Andean chain, from 

 northern Peru to Panama. 



14. Didelphis marsupialis battyi Thomas. Coiba Island, 



Panama. 



15. Didelphis marsupialis aurita Wied. Southern Brazil. 



II. PARAGUAYENSIS GROUP. 



1 6. Didelphis Paraguay ensis Oken. Northern Argentina, 



Paraguay, and southern Brazil. 



17. Didelphis par aguay ensis pernigra Allen. Southeastern 



Peru, into Bolivia. 



1 8. Didelphis paraguayensis andina, subsp. nov. (p. 272). 



Andean region of northern Peru and Ecuador. 



19. Didelphis paraguayensis meridensis, subsp. nov. (p. 274). 



The eastern Cordilleras of Colombia and Venezuela. 



DESCRIPTIONS OF THE SOUTH AMERICAN SPECIES AND 

 SUBSPECIES. 



Didelphis marsupialis Linn. 



Philander, maximus, orientalis, SEBA, Thesaurus, I, 1734, 64, pi. 



xxxix. "Amboine," in error = Guiana. 

 Didelphis mammis intra abdomen LINN., Syst. Nat. ed. 6, 1748, 10 = 



Philander of Seba, pll. xxxvi, figs. 1,2, xxxix (part). 

 [August, igo2.~\ 17 



