20 



dark gray, lighter on the sides and white on the under parts. 

 The Rat is the largest species, and the smallest is Mus 

 mus cuius Linn£, named Ratoncito or Guayabito. It lives 

 everywhere in houses and in fields. It is very noxious in 

 the houses, not so much for eating the victuals as for gnaw- 

 ing the clothes, furniture, boxes and baskets containing 

 victuals. 



The genus Mus forms no part of the fauna of Cuba. The 

 species were introduced by vessels. 



I have not observed or seen the maritime mammals. 

 There have been observed : 



1. Monachus tropicalis ; caged near Havana, was stuffed, 

 and afterward purchased by Mr. Poey for the Smithsonian 

 Institution. 



2. Manatus Manati ; lives in different localities. 



3. Delphinus ? Tomina ; not rare ; seen from vessels. 



4. Phoccena ? Orcas. Found dead on the seashore ; the 

 skeleton was prepared for the Museum of the Academy. 



