456 Descriptions of Six New Species of Birds. 



"This specimen I obtained in ,the month of July near the 

 port of Guantanamo, on the south coast of the eastern part of 

 the island ; it was a female, and was caught in a net while sit- 

 ting on her nest, in which were three eggs ; it is in full plu- 

 mage, I could not find the male nor a single individual more. 

 Its bill was black, with the base on the under part grey, and the 

 legs of the same color with a purple tint ; eyes very black. 

 Length 0.170; extent 0.337; tail O.Oio ; the ends of the wings 

 were 0.004 from the end of the tail, not beyond it." 



3. Thalurania liiiciae. 



Male. Crown metallic deep bine, hind part of the head greenish-blue ; 

 upper plumage and wing coverts grass-green, with a slight golden tinge 

 on the back ; tail steely blue-black and deeply forked ; wings dark violet 

 purple ; entire under plumage shining grass-green, under tail-coverts 

 green ; upper mandible black, the under black, except on the sides, where 

 it is pale yellow for about half its length from the base, the lighter color 

 gradually merging into the darker ; the tarsi are clothed with white 

 feathers, slightly tinged with brown on the front part ; toes ashy on the 

 upper surface and underneath very pale yellow, claws brownish-black. 



Length about 4^ in. ; wing 2f ; tail 1^ ; bill \\. 



Habitat. — ^Tres Marias Islands, Mexico. 



This species at first sight bears a close resemblance to Thai. 

 glauGopis, but is a little larger, with the bill rather shorter ; in 

 the color of the crown they are much alike, but in the present 

 bird the wings are darker, as is also the green of the under plu- 

 mage, which in the other has more of a yellowish shade. In 

 the Brazilian bird the bill is entirely black, the covering of the 

 thighs dark-brown tipped with white, and the feet brown above 

 and bright yellow below, whereas in the new species the bill is 

 partly yellow, the thighs nearly pure white, and the feet very 

 pale. 



This, I believe, is the most northern point at which any of 



