? 
ance of similar types in widely separated regions. Vireo crass 
man, we find Vireo allenii, a race so nearly resembling V. 6 
p32 = The American Naturalist. [June, 
10. Myiarchus lucaysiensis—This fly-catcher is evidently de- 
rived from the Cuban Myiarchus sagræ; indeed, some authors 
consider the birds inseparable. 
11. Blacicus bahamensis —A near relative of a West Indian 
group of fly-catchers, and probably closest to the Cuban AVacicus 
carribeus. | 
12. Pitangus bahamensis—Related species occur on the four 
larger West’ Indian Islands. The Bahaman bird is probably 
nearest the Cuban Pitangus caudifasciatus. | 
13. Icterus northropt—A well-marked species, known as yet 
only from Andros, where its discover, Dr. Northrop, found it not 
uncommon. It is an evident representative of the Haytian /cferus 
dominicensis. 
14. Spindalis zena. 
15. Spindalis zena townsendi —The distribution and relation- as 
ships of these birds are particularly interesting. The first is 
found in Andros, the second is apparently restricted to Abaco, 
while on the intervening island, New Providence, an intermediate 
and connecting form occurs. Spindalis is a characteristic West 
Indian genus; Cuba, Grand Cayman, Jamaica, Hayti, and Porto 
Rica each have distinct species, and quite recently a well-marked 
species has been described from Cozumel. Strange to say, the 
more northern of the Bahaman birds, Spindalis zena townsend 
of Abaco, finds its nearest ally in this Cozumel species. 
16. Vireo crassirostris. 
17. Vireo crassirostris flavescens—The center from which the — 
species of this group of Vireos have originated is now difficult 
to determine. Their exact relationships to the North American 
Vireo noveboracensis and the Cuban Vireo gundlachii can be only — 
questions of uncertain speculation. *However, without determin- 
ing their origin, we have in them a marked instance of the appear- 
near representative, but southward, on the island of Grand Cay- 
flavescens that Mr. Cory considers them to be inseparable. On 
RRAN 
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