1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM 575 



yellowish. Length (skin) 0.20, wing 3.35, tail L\o(), culuieu .35, tarsus 

 .60, middle toe .55. 



Adult female (No. 111218, same locality, etc.) : Similar to male in pat- 

 tern of coloration, but the delicate viuaceous of head, neck, under parts, 

 etc., replaced by pale drab, the chin and upper throat plain white, occi- 

 \}\xt and hind-neck deep drab gray, like back (but feathers margined 

 with darker), and spots on wing-coverts and tertials more ])ur[)Iish. 

 Length (skin) C, wing 3.25, tail 2.50, culmen. 38, tarsus. 57. 



The three adult males and two adult females from Grand Cayman 

 differ constantly from a very large series from various islands in the 

 Bahama group, in the color of the bill, as pointed out above. The dif- 

 ference in dimensions is also nearly constant, the average diliereuce 

 being very decided. 



13 Arenaria interpres (Linn.)- 

 One specimen. 



IL Swan Island Caribbean Sea. 



Tliis island lies about 200 miles to the southwest of Grand Cayman, 

 in the direction of the Honduras coast. I possess no data as to its for- 

 mation or general character, further than that it is partially wooded 

 and contains deposits of guano. The fact that it possesses so few i)e- 

 C'lliar local forms of land birds would indicate a recent origin. The fol- 

 lowing species, said to embrace all that were noticed on the island, were 

 obtained by Mr. Towuseud : 



1. Mimocichla rubripes (Temm.). 

 Ten adults in fine i^lumage. 



These I am unable, after the most careful comparison, to distinguish 

 from Cuban specimens. There is a curious variation in the color of 

 the bill, which in some is deep black, while in others it is deep orange 

 or orange-red, the upper mandible tinged with brownisli dusky. The 

 extremes are found in two males. 



2. Galeoscoptes carolinensis (Linn). 

 Two specimens (February 1 and 3). 



3. Mniotilta varia (Linn.). 



Two specimens (February 1 and March 28). 



4. Compsothlypis americaiia (Linn.). 

 Four specimens (February 2 to 18). 



5. Dendroica coronata (Linn.). 



Four specimens (February 2 to 9). 



6. Dendroica caerulescens (Gmel.). 

 One specimen (February 9). 



7. Dendroica palmarum (G.mel.). 



Four specimens (February 3 to 25). 



