)/. cissopis. 299 



and crissum ; middle of bolly cinereous ; throat black ; bill black ; 

 feet clear horn-colour : whole length 6*7 inches, wing 3-2, tail 3-2. ' 

 Hah. Ecuador. 



a. Ad. sk. Ecuador. Solater Coll. 



b, c. Ad. sk. Imtac, Ecuador {Bucldeij). Salviu-Godman Coll. 



57. CISSOPIS. ^ ^^ 



Cissopis, Vieill. Analyse, p. 40 (1816) C. levmana 



Eethylus, Cuv. Megn. An. i. p. 341 (1817) C. leveriana! 



This is an exceptionally well-marked form among the Tauagers, 

 at once distinguished by its long graduated tail and glossy black and 

 white plumage. The bill is short and strong and terminated by a 

 powerful hook. The feet are large and strong. Cissoxns ranges 

 over South America from Colombia to Southern Erazil. 



I am only able to distinguish two forms of this genus. Of them 

 the smaller one, hitherto usually called media and minor, seems 

 really best entitled to bear the original name ''leveriana." I have 

 therefore followed Cabanis in calling the larger form Cissopis major. 



Key to tlie Species. 



a. Smaller ; the black of the back reaching only to 



the interscapulium 1. leveriana, p. 299. 



b. Larger ; the black of the back extended below 



the interscapuhum 2. major p. .300. 



1. Cissopis leveriana, 



Lanius leveriauus, Gm. S. N. i. p. 302 (1789) : Slum, 3Ius. Lever. 



t. p. 241. ' 



Lanius picatus, Lath. Ind. Orn. i. p. 73. 

 Corvus collurio. Baud. Orn. ii. p. 246. 

 Eethylus medius, Bp. Consp. i. p. 491. 



Nomencl p. 25 ; Tacz. P. Z. S. 1882, p. IQ; id. Orn. Per. ii. p. 538 ; 

 Salv. Ibis, 1885, p. 213 (Brit. Guiau.). 

 Saltator bicolor, Lafr. etcVOrh. Syn. Av. i. p. 36. 

 Eethylus picatus, (FOrb. Voy., Ois. p. 269: Tsch. in Wiecim. Arch. 



1844, pt. i. p. 288. • 

 Cissopis minor, Tsch. Fann. Per., Aves, p. 211 ; Cab. in Schomb. Guian. 



et 1858, p. 454; 

 , et Salv. P. Z. S. 

 i) ; iicl. Nomencl. 

 p. 25 ; Tacz. P. Z. S. 1874, p. 517 ; id. Orn. Per. ii. p. 536. 

 Eethylus minor, £p. Consp. i. p. 491. 

 Magpie Shrike, Lath. G. H. ii. p. 94. 



_ Above pure white ; whole head and neck down to the interscapu- 

 lium shining black ; wings and tail black ; lesser wing-coverts, spots 

 at the ends of the greater wing-coverts, margins of outer secondaries, 



