34 Proceedings of the Biological Society of Washington. 



with dark brownish gray; lining of wing rather dark hair brown, outwardly 

 washed with rusty, and narrowly barred with white; thighs anteriorly 

 dull white, posteriorly mouse gray. Wing, 147 mm.; tail, 64; exposed 

 culmen, 62; tarsus, 50; middle toe without claw, 45. 



This interesting new rail is in color between Rallus longirostris crepitans 

 and Rallus longirostris waynei, although it is smaller than either. It is 

 apparently confined to the Florida Keys, although it possibly may ex- 

 tend to the adjacent mainland. Its northeastern distribution yet remains 

 to be determined. 



