62 



6. Greexlaxd Walrus {^Odobc^tius rosmariis). Specimens 



to be used for a group. Main floor, east wing, wall 

 cases at the entrance to the Hall. 



7. Skin and Skull of Ccenolestes obscurus Thomas, a still 



existing survivor of the family Epanorthidae of Ameg- 

 hino, representing a new family among recent Marsu- 

 pials. A Diprotodont, representing in South America 

 the Diprotodonts of Australia. Collected at Bogota, 

 Colombia. Received in exchange from the British 

 Museum. 



(On this form cf. Thomas, P. Z. S., 1S95, pp. S70— 

 87S, pi. 50.) 



8. Hybrids between the common fowl ( Galhis bankivd) and 



the guinea fowl {JVumida vieleagris). From Cuba. 

 Presented by Dr. Juan Vilar6. No. i, a male, progeny 

 of a game cock and guinea hen. No. 2, male, progeny 

 of another game cock and another guinea hen. No. 3, 

 male, progeny of a white male guinea fowl and a white 

 barnyard fowl. No. 4, male, progeny of a male game 

 cock and a guinea hen. 



Specimens of the game cock and guinea fowl are 

 shown for comparison with the hybrids. 



9. Groups of Birds illustrating changes of plumage in the 



same species. Snowflake, Bobolink, Orchard Oriole, 

 Scarlet Tanager. 



Nos. 5, 6, 7, 8 and 9 are exhibited by the Department 

 of Mammalogy and Ornithology, American Museum of 

 Natural History. 



NOTICE. 



The Academy has on exhibition its publications of the last 

 year, including the Annals^ Memoirs and Transactions. 



