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67. Amizilis ellioti (Berl.) replaces A. verticalis auct. 



Both Dr. Hartert * and Mr. Ridgway t applied the name Trochilus verticalis 

 Lichtenstein J to a species with (immaculate) white under tail-coverts found 

 in the western and central states of Mexico (Sonora, Sinaloa, Jalisco, 

 Michoacan, etc.). In Eastern Mexico (states of Vera Cruz, Oaxaca, and Chiapas) 

 occurs the nearly allied A. cyanocephala cyanocephala (Less.), chiefly characterised 

 by having the under tail-coverts olive-grey, faintly glossed with bronze and 

 margined with white. 



Trochilus verticalis was founded upon specimens obtained by the Prussian 

 travellers Deppe and Schiede in the late twenties of last century. Thanks to the 

 courtesy of Drs. Reichenow and Lorenz, I have been enabled to examine three 

 examples, belonging to the Berlin and Vienna Museums respectively, all marked 

 by Lichtenstein himself as " Trochilus verticalis" They were collected by Deppe 

 at Perote, a place situated between Puebla and Jalapa, in the state of Vera Cruz, 

 Eastern Mexico. These skins are unquestionably identical with the bird known as 

 A. cyanocephala, having the sides of the neck metallic green, and the under 

 tail-coverts pale brownish olive, edged with white, and agree in every respect with 

 a series from Jalapa and Oaxaca. 



T. verticalis is, therefore, to be relegated to the synonymy of Amizilis 

 c. cyanocephala, while the West Mexican species has to bear the name Amizilis 

 ellioti (Berlepsch). 



68. Coccyzus euleri Cab. 



Coccygus Euleri Cabanis, Journ. f. Ornith. 21, p. 72 (1873. Cantagallo, prov. of Rio de Janeiro, 



South-eastern Brazil). 

 Coccyzus euleri Chapman (& Riker), Auk, viii. 1891. p. 159 (crit. ; Santarem, Lower Amazons; 



Chapada, Mattogrosso) ; Stone, Ibis, 1899. p. 476-7 (Aunai, interior of British Guiana). 

 Coccygus Bairdi (nee Sclater) Pelzeln, Zur Orn. Bras. iii. 1869. p. 273 (Paciencia, northern 



S. Paulo, South Brazil). 



Coccygus Undent Allen, Bull. Essex Inst. viii. p. 81 (1876. Santarem, Lower Amazons). 

 Coccyzus americanus (nee Linnaeus) Allen, Bull. Amer. Mus. N.H. v. 1893, p. 136 (Chapada, 



Mattogrosso ; one ^, October 28, 1883). 



No. 1. Vienna Museum: " S " ad., 



Paciencia, March 25, 1823. 



Natterer coll. No. 1141 (76b) . 

 No. 2. Tring Museum: "<y" ad., 



Pararah, Surinam, August 28, 



1905. Chunkoo coll. 



Wing 127 ; tail 124; tars. 21 ; bill 24| mm. 



Wing 131 ; tail 129 ; tars. 22 ; bill 27 mm. 



C. euleri is certainly the rarest among South American Cuckoos. The type 

 was obtained by Euler at Cantagallo, in the province of Rio de Janeiro, and is 

 preserved in the Berlin Museum. Mr. Stone recorded a specimen from the interior 

 of British Guiana that had been forwarded to the Academy of Natural Sciences of 

 Philadelphia. In the British Museum there is a second example from the same 

 country, taken by H. Whitely at Aunai on June 24, 1889. H. H. Smith secured a 

 single male near Chapada, Mattogrosso, S.W. Brazil, on October 28, 1883, which is 



* Tierreich, Lief. 9, 1900, p. 62. 



f Bull. U.S. Mus. No. 50, v, Nov. 1911, p. 422. 



J Preisverzeichniss Mexik. Vogel, 1830, p. 1 (Mexico). 



Misspelt "Aruwai." 



