224 Patmer, The Maryland Vellow-throat. ais 
Lloyd on East Caranchus Creek, Jackson County, Texas, Jan. 6, 
1892. Another isin the National Museum collection taken by 
Dr. Shufeldt at New Orleans Nov. 26, 1882 (No. 90665). Audu- 
bon’s specimen was taken in a deep cypress swamp in September, 
1821, “ not far from the river Mississippi, in the State bearing 
the same name.”’ 
Comparative Ecological Values of the Habitats. 
Large amount of sunshine, great radiation, temperate climate and 
vegetation, perfect and rapid drainage, open and generally dry soil con- 
ditions, low to medium elevation, short to! fair migration ; trichas. 
Fair amount of sunshine but tempered by insular characteristics, 
copious moisture, slow radiation, subtropical climate and vegetation, 
deep shade, slow drainage, low elevation, practically no migration. 
roscoe. 
Fair amount of sunshine tempered by sea and boreal characteristics, 
slow radiation, subboreal climate and vegetation, good drainage, gen- 
erally damp soil conditions, low elevation, extensive migration into 
a tropical climate. : : 2 ; : brachidactyla. 
Excessive sunshine tempered by hitibudinal characteristics, excessive 
quick radiation, partial desert climate and vegetation, generally poor and 
arid soil conditions, high elevation, fair migration into subtropical 
climate. : : : : : - ; ; ; occidentalts. 
Subtropical habitat, otherwise unknown . ; : . melanops. 
LVomenclature. 
As the first form of this species to be described binomially was 
the Maryland bird it becomes the type from which to differentiate 
others. The northern bird has not heretofore been separated 
except by Swainson, who evidently considered it distinct from the 
Maryland bird, for which he had substituted the name 7Z7ichas 
personatus 
Mr. C. J. Maynard has described a specimen taken on Febru- 
ary 2, 1884, at Nassau, New Providence Island, Bahamas, as a 
1Zool. Journ. III. 1827, 167. 
