18 EXTINCT AND VANISHING MAMMALS 



WEST INDIES 1 



Four Antillean insectivores (Nesophontes edithae; N. micrus; N. 



longirostris ; N. zamicrus) 

 Lesser Falcate-winged Bat (Phyllops veins] 

 Cuban Yellow Bat (Natalus primus) 



Smaller Puerto Rican Ground Sloth (Acratocnus odontrigonus) 

 Larger Puerto Rican Ground Sloth (Acratocnus major) 

 Smaller Hispaniolan Ground^loth ( Acratocnus (?) comes) 

 Larger Hispaniolan Ground cloth (Parocnus serus) 

 Barbuda Musk-rat (Megalomys audreyae) 



Hispaniolan Spiny Rat two species (Brotomys voratus; B. contractus) 

 Cuban Short-tailed Hutia (Geocapromys columbianus) 

 Crooked Island Hutia (Geocapromys ingrahami irrectus) 

 Great Abaco Hutia (Geocapromys ingrahami abaconis) 

 Haitian Hexolobodon (Hexolobodon phenax) 

 Least Hispaniolan Hutia (Plagiodontia spelaeum) 

 Puerto Rican Isolobodon (Isolobodon portoricensis) 

 Haitian Isolobodon (Isolobodon levir) 

 Narrow-toothed Hutia (Aphaetreus montanus) 

 Two agoutilike rodents (Heteropsomys insularis; Homopsomys antil- 



lensis) 



A Puerto Rican hystricomorph (Heptaxodon bidens) 

 "Quemi" of Oviedo (Quemisia gravis), about 1550? 

 A Puerto Rican giant rodent (Elasmodontomys obliquus) 



SOUTH AMERICA 

 Patagonian Giant Ground Sloth (Grypotherium listai) 



OCEANS 

 Steller's Sea-cow (Hydrodamalis gigas), 1768 



Years 1801-1850 (2 forms) : 



NORTH AMERICA 

 Eastern Bison (Bison bison pennsylvanicus) , 1825 



WEST INDIES 



Hispaniolan Hutia (Plagiodontia aedium) 

 Years 1851-1900 (31 forms) : 



AUSTRALIA 

 Gilbert's Rat-kangaroo (Potorous gilbertii) 



i Possibly the extinction of some of the forms listed under this heading, known 

 from bones found in cavern deposits, may have occurred more than 2,000 years 

 ago. They are recognized, however, as pertaining to the Recent fauna. A. W. 



