5. XENODACNIS. 6. HEMIBACNIS. 17 



Above black ; cap, uropygium, and upper wing-coverts shining 

 blue ; below black ; bill black ; feet dark brown : whole length 4-5 

 inches, wing 2*7, tail 2"2. Female (according to Taezanowski) with 

 the cap clearer blue, back of neck cinereous, back green, rump yel- 

 lowish, throat cinereous, and belly greenish yellow. 



Hab. Andes of Ecuador, Peru, and Bolivia. 



The adult of this species somewhat resembles the young male of 

 C. albifrons, but is at once distinguishable by its black back. 



a, b. (S ad. sk. Bolivia {Jitwklei/). Salvin-Godman Coll. 



c. cS ad. sk. PaUatanga, Ecuador (-F?-a5er). Piu'chased. 



5. XENODACNIS. Type. 

 Xenodacnis, Cab. J.f. 0. 1873, p. 311 X. parina. 



This peculiar form is, as Dr. Cabanis has well observed, hard to 

 place satisfactorily, but is better referred to the neighbourhood of 

 Dacnis than to any other position. The bill is very Parine in form, 

 but without any nasal bristles. There is no tenth primary apparent. 

 The feet are strong. 



1. Xenodacnis parina. 



Xenodacnis parina, Cab. J. f. 0. 1873, p. 312, tab. iv. figs. 1, 2 ; Tacz, 

 P. Z. S. 1874, p. 510; id. Orn. Perou, i. p. 434. 



Uniform dull purplish blue, rather paler on the beUy, brighter 

 on the head and rump ; wings and tail-feathers ashy black edged 

 with blue ; bill dark brown ; feet black : whole length 4-5 inches, 

 wing 2-5, tail 2'1. Female (according to Cabanis) above brownish, 

 cap blue ; lesser wing-coverts and rump bluish ; beneath reddish 

 brown, middle of belly whitish. 



Hab. Central Peru. 



a. (S ad. sk. Maraynioc, Peru {Jekki). Sclater Coll. (One of the 



typical specimens.) 



6. HEMIDACNIS. 



Type. 

 Hemidacnis, Sd. Cat. A. B. p. 50 (1862) H. albiventris. 



This is again a monotypie form, but much more nearly allied to 

 Dacnis, from which it scarcely differs except in its shorter bill. 



1. Hemidacnis albiventris, 



Piprjeidea albiventris, Sclater, JRev. Zool. 1852, p. 8 ; id. Contr. Orn. 

 1852, p. 131, pi. 100. %. 1. 



Diva albiventris, Sclater, P. Z. S. 1855, p. 158. 



Hemidacnis albiventris, Scl. Cat. A. B. p. 50 ; Cassin, Pr. Ac. Sc. 

 Phil. 1864, p. 271 ; Scl. et Salt: P. Z. S. 1867, p. 749, et 1873, 

 p. 259 ; iid. Nomencl. p. 16 ; Tacz. Orn. Perou, i. p. 427. 



Dacnis albiventris, Gray, Hand-l. i. p. 118. 



Above bright purplish blue ; front, lores, and ear-coverts black ; 



VOL. XI. c 



