322 ICTERIDJI. 



2, Cassicus flavicrissus. 



Cassiculus flavicrissus, Sdater, P. Z. S. 1860, p. 276 ; id. Cat. A. B. 



p. 129 ; Cass. Pr. Ac Sc. Phil. 1867, p. 67. 

 Cacicus persicus, Scl. et Sah. P. Z. S. 1864, p. 353. 

 Cassicus vitellinus, Lawr. Pr. Ac. Sc. Phil. 1864, p. 107 ; Cass. Pr. 



Ac. Sc. Phil. 1867, p. 66. 

 Cassicus fla^^crissus, Scl. Ibis, 1883, p. 158; Tacz. P. Z. S. 1877, 



p. 322 ; id. Orn. Per. ii. p. 411 ; Scl. et Salv. P. Z. S. 1879, p. 509 ; 



lid. Nomencl. p. 35 ; Wyatt, Ibis, 1871, p. 329, et 1872, p. 468 ; 



Berl. et Tacz. P. Z. S. 1883, p. 552. 



Glossy black ; large blotch on the wing-coverts, hinder back, 

 crissiim, and basal third of rectrices bright orange-yellow ; bill 

 white ; feet black : whole length 11-5 inches, wing 6-7, tail 4-5. 

 Female similar, but duller black and smaller: whole length 9 inches, 

 wing 5-3, tail 2-5. 



Hah. Panama, Western Ecuador, and Northern Colombia. 



Mr. Lawrence has very accurately stated the differences which 

 distinguish this northern bird from Cassicus persicus. An exami- 

 nation of the tail at once serves to separate the two species. In 

 the present bird the yellow of the rectrices hardly extends beyond 

 the coverts, either above or below ; in C persicus the yellow colour 

 reaches far beyond the coverts on both surfaces, especially in the 

 external tail-feathers, and is readily discernible below, without 

 lifting up the feathers of the crissum. The yellow of the body has 

 also a more orange tinge. 



a,b. c? 2 ad. sk. LionHill, Isthmus of Panama Salvin-Godman Coll. 



{McLeannmi). 



c. 2 ad. sk. Panama {Boucard) . Sclater Coll. 



d,e. (S 2 ad.sk. Babahoyo, Ecuador (J/-ffser). Sclater Coll. (T^qDesof 



Cassiculus flavicrissus, Sclater. ) 



/. 2 ad. sk. Western Ecuador {Buckley). Salvin-Godman Coll. 



g. (S ad. sk. Guyaquil. Gould Collection. 



A. cJ ad. sk. Magdalena Valley ( JFya^O- Salvin-Godman Coll. 



i,j. 6 $ ad. sk. Remedies, Antioquia {Sal- Sclater Coll. 



mon). 



k,l. cS 2 ad. sk. Remedies, Antioquia (Sal- Salvin-Godman Coll. 



mon). 



3. Cassicus chrysonotns. 



Cassicus chrysonotus, d'Orb. et Lafr. Syn. Av. ii. p. 3 ; d'Orb. Voy., 

 Ois. p. 367, t. lii. fig. 1 ; Cass. Pr. Ac. Sc. Phil. 1867, p. 67 ; Scl. 

 P. Z. S. 1873, p. 781 ; id. Ibis, 1883, p. 159 ; Scl. et Salv. P. Z. S. 

 1879, p. 608 ; Tacz. Orn. Per. ii. p. 412. 



Cassiculus chrysonotus, Bp. Cotisp. i. p. 428. 



Black; rump yellow; bill white; feet black: whole length 13 

 inches, wing 6-3, tail 5-8. Female similar, but smaller : whole 

 length 9 inches, wing 5'1, tail 4-9. 



Hub. Bolivia and Southern Peru. 



This is a most distinct and unmistakable species, without any 

 yellow on the wings or tail. Cassin was not acquainted with it, and 

 consequently cast unnecessary doubts on its validity. 



