530 The American Naturalist. [June, 
the first consisting of species of more or less general distribution, 
and not confined to the Bahamas; the second consisting of 
species and subspecies peculiar to the islands, beyond which they 
are, as a rule, unknown. The first class numbers thirty-two 
species, which may be summarized according to their distribution, 
as follows : 
Cosmopolitan.—1, Circus hudsonius; 2, Falco peregrinus ana- 
tum; 3, Pandion haliaétus carolinensis ; 4, Strix pratincola. 
Continental.—1, Cathartes aura ; 2, Falco sparverius ; 3, Ceryle 
alcyon. 
North American.'—1, Accipiter velox; 2, Antrostomus caroli- 
nensis; 3, Agelaius phæniceus bryanti; 4, Ammodromus savar- 
narum passerinus; 5, Dendræca vigorsti ; 6, Mimus polyglottus. 
Tropical.—1, Columba leucocephala; 2, Columbigallina passer- 
ina; 3, Zenaida zenaida ; 4, Geotrygon montana; 5, Crotophaga 
ani; 6, Tyrannus domenicensis. 
West Indian.—1, Chordeiles minor; 2, Euethia bicolor. 
Cuban.—1, Chrysotis leucocephala ; 2, Sporadinus ricordi ; 3, 
Tyrannus magnirostris ;* 4, Vireo altiloquus barbatulus ; 5, Den- 
dræca petechia gundlachii ; 6, Mimus gundlachit. 
Haytian—1, Speotyto cunicularia dominicensis. 2, Loxigilla 
violacea ;* 3, Dendreca petechia ;** 4, Mimus elegans? 
Porto Rica and Northern Windward Islands—1, Margarops 
fuscatus? 
The second class numbers twenty-four endemic species and 
subspecies. In attempting to explain their specific affinities we 
shall be obliged to consider each one in connection with its allies. 
1. Rallus coryi—Known from two specimens taken on Andros. 
It is closely related to the Rallus longtrostris group of rails of 
continental distribution. 
2. Ardea bahamensis—Found throughout the Bahamas. It 
is nearly allied to the North American Ardea virescens, which, 
ranging from Northern South America to Canada, is subject to 
more or less variation under favorable conditions. 
1 The species here given are all residents in Florida. 
2 Recorded only from Inaugua, 
3 Occurs also in Jamaica. 
