162 Mr. Swainson on several new groups in Ornithologt/. 



species a genus." So far, indeed, is this from truth, that we 

 require many more, before even the descriptions of those species 

 already in our systems, can be rendered intelligible to modern 

 science. 

 Warwick, 15th Nov. 1826. 



ORDER. INSESSORES. Hgors. 



Family Laniadce, 

 Sub'jamily Laniana* 



CYCLORHIS. 



Mandibuld superiore leviter dentat&y subobtusd^ naribus rotun- 



datis. 

 Alee breves^ convexce^ rotundatce^ remigibus 4'", 5'«, et 6ffl, cequU' 



iibusy longissimis, 

 Cauda osqualis. 

 Pedes robusti. 



Upper mandible ?X\^\i\j toothed, and rather obtuse. Wings short, 

 convex, rounded; the fourth, fifth, and sixth quills longest, 

 and of equal length. Tail even. Feet robust. 



Type. Tanagra Guianensis, Auct. Tropical America. 



NILAUS. 



Rostrum mediocre^ subgracile, culmine arcuato, mandibula supe^ 



riore fortiter dent at a ^ naribus ovalibus. 

 Alee su'battenuatce ; reinigibus 3tid) 4'«, et 5^^ fere cequalibus^lon' 



gissimis, 

 Cauda brevisy eequalis. 

 Pedes graciles ; unguibus acutis. 



Bill moderate, somewhat slender ; culmen gradually hooked ; 

 upperinandible strongly toothed ; nostrils oval. Wings rather 



