184 



BULLETIN 144, UNITED STATES NATIONAL MUSEUM 



Remarks. — This is a fairly well-marked island race distinguished 

 by the small size of the skull and the globular form of the brain case. 



External measurements of Myotis nigricans 



' Type of Myotis ehhiquensis J. A. Allen. 

 • Type of Myotis bondx J. A. Allen. 



' Type of Myotis caucensis J. A. Allen. 

 'Type of Myotis maripensis J. A. Allen. 



