U. S. NATIONAL MUSEUM 



BULLETIN 99, PART 2 PL. 23 



RATTUS COUCHA ISMAILIAE (HELLER). TYPE. 



'mX^ 



Rattus COUCHA tinctus Hollister. Type. 



r 



Rattus coucha neumani (Heller). Type. 



For explanation of plate see page 173. 



