126 MNIOTILTID A. 
and Belize birds (which hardly differ in this respect), and lastly the two Veraguan 
specimens. 
From this it will be seen that a case for the separate distribution of these birds cannot 
well be made out; and as they do not occupy distinct areas, the differences pointed out 
are not sufficiently stable to enable their bearers to be known by different names. 
With but few exceptions D. vieilloti has hitherto been found'at no great distance 
from the sea. Our own personal acquaintance with it is limited to two occasions :— 
one, when we met with it on Half-moon Cay, one of the coral islands off the coast of 
British Honduras; and the other on the outskirts of the port of Punta Arenas in Costa 
Rica. In habits the bird much resembles D. estiva, and, indeed, is hardly to be distin- 
guished from it when moving restlessly in search of its food. 
The records of the occurrence of the species inland are by Grayson, who observed it 
near Guadalaxara, in Mexico’, and by von Frantzius, who saw it in May near San José 
in Costa Rica. | 
D. vieilloti is no doubt the continental representative of the Antillean D. petechia, 
which, under certain slight modifications, is found in so many of the West-Indian islands, 
and even in the Galapagos archipelago ; but from all these forms it is distinguishable 
by its throat being chestnut as well as the head. Its head quarters is undoubtedly 
Central America, as it only just penetrates into the southern continent. An allied 
species is found in Western Ecuador, which is not separable, so far as we can see, from 
the Galapagos bird, D. awreola, or, for that matter, from the Jamaican D. petechia itself. 
B. Cauda intus macula magna alba notata aut late albo marginata. 
a. Ale conspicue albo notate ; remiges ad basin albi. 
3. Dendreca cerulescens. ~ 
Motacilla cerulescens, Gm. Syst. Nat. i. p. 960}. 
Dendroica caerulescens, Baird, Rev. Am. B. i. p. 186°; Baird, Brew. & Ridgw. N. Am. B.i. p. 254°; 
Gundl. Orn. Cub. p. 64%; Coues, B. Col. Vall. i. p. 241°. 
Motacilla canadensis, Linn. Syst. Nat. i. p. 836 (nec p. 334) °. 
Dendreca canadensis, Dresser, Ibis, 1865, p. 4787; Salv. Ibis, 1866, p. 205°. 
Syvicola pannosa, Gosse, B. Jam. p. 162°. 
Dendreca, sp. inc., Salv. & Sel. Ibis, 1860, p. 273». 
d supra schistaceo-cerulea, alis eb cauda fusco-nigris ceruleo limbatis, speculo alari albo, cauda albo utrinque 
notata; capitis lateribus, gula et hypochondriis nigerrimis ; abdomine medio niveo ; rostro nigro, pedibus 
corylinis. Long. tota 4°7, ale 2°6, caude 2, rostri a rictu 0°5, tarsi 0-7. (Descr. maris ex Washington, 
U.S., Smiths. Inst. no. 28286. Mus. nostr.) 
2 sordide fusca; alis et cauda concoloribus, subtus medialiter dilutior, speculo alari albido sicut in mare. 
(Deser. feminse ex Coban, Guatemala. Mus. nostr.) 
Hab. Eastern States of Norta America from Canada southwards 3°, Texas 7.—GUarTE- 
MALA, Coban (0. S. & F. D. G.8 ©) —Greatrer ANTILLES, Cuba‘, Jamaica 9, &c. 
