138 GENE E A AND SPECIES. 



the cyanotus stated by Lesson to be syno- 

 nymous with Delphince. 

 This species appears to be the representative 

 of the P. serrirostris of the Brazils, from which 

 it is at once distinguished by the blue covering 

 of the ear-coverts. 



Sp. 3. PETASOPHOBA THALASSINA, Trochilus 

 thalassinus, Swains. Syn. Birds of Mexico, 

 in Phil. Mag. June, 1827, p. 441. 

 This species differs from the other members of 

 the genus by being of a smaller size, and by the 

 greater extent of the blue on the cheeks and 

 ear-coverts. It has also a slight wash of blue 

 on the chin and centre of the abdomen. 

 Hab. Mexico. 



Sp. 4. PETASOPHOBA ANAIS, Ornismya Anais, 

 Less. Col. Sup. pi. 3 ; Less. Troch. pis. 

 55, 56, 57; Eev. Zool., 1838, p. 315, 

 p. 19 ; Less. Velin, No. 11 ; Echo du 

 Monde Savant, 1843, No. 31. 

 Much confusion, observes Mr. Gould, evi 

 dently exists with respect to this species, M 

 Lesson having figured one bird and describee 

 another, with the same appellation. Under 

 these circumstances it will be to the advantage 

 of science to retain the specific term Anais for 

 the birds best known to ornithologists by that 

 designation, the species so common in all collec- 

 tions from Bogota, theareat Anais of the "French, 

 and which is a very fine bird, distinguished by 

 the existence of a well-defined band of blue on 



