DEPARTMENT OF MARINE BIOLOGY 



OF 



THE CARNEGIE INSTITUTION OF WASHINGTON 

 ALFRED G. MAYOR, DIRECTOR 



VOLUME XV 



LEODICIDAE OF THE WEST INDIAN REGION 



BY 



AARON Louis TREADWELL 

 Professor of Zonlogy, Vassar College 



PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 

 WASHINGTON, 1921 



