h 



li 



^ii 





94 



RKVIKW OP AMERICAN DlllDS, 



[I'AIIT I. 



Contrary to the opinionH of nuist Ornitlnjl(»Kista, I liavj; i)lu(»(| 

 tlie gonus JJonavobiuH among the Thrushus, rutlior than the Wr<!iis: 

 the reasons for this .*re given on page 58. 



With these prcliniinar) general reniarits, I proceed to present ii 

 brief synopsis of the genera and siihgenera of American Trorjlody- 

 tUtfv, wiiich, however urtifieial, may serve to aid in their determina- 

 tion. The fuller characters will be found detailed under each genus : — 



A. Nostrils broadly oval, not overhung ; anterior half rest- 



ing in the end of the nasal groove ; no lateral septum 

 visible. Bill not notched. Tarsi as short as inidde toe 

 and claw. Legs stout ....... 



B. Nostrils quite broadly oval, without distinct lateral sep- 



tum, this being concealed liy the narrow scale which 

 margins the nostril above. Bill not notched. Lega 

 stout ; claws strong, much curved ; tarsus longer than 

 midille toe and claw. Tail about equal to wings . 



C. Bill slender, not notched. Nostrils elongated, in lower 



side of nasal groove, overhung by an arched portion of 

 nasal membrane, thickened, with rounded edges. Inner 

 lateral toe considerably shorter than outer. 



a. Inner lateral toe equal to hind toe. Lateral plates 



along posterior half of tarsi divided into smaller 

 ' ' ones ......... 



b. Inner lateral toe considerably shorter than hind 



toe. Pl.ii.es of posterior half of tarsus continuous, 

 ■■' "■ "- not divided into smaller ones 



D. Nostrils wioadly oval, divided by a low wall perpendicu- 



lar to the median nasal septum, but not coming to 

 the surface ; bordered above by scarcely thickened 

 membrane, placed in end of nasal groove. Legs very 

 stout. Bill short, broad at base, without notch. Cul- 

 men much curved. Tail much graduated, about equal 

 to the wings 



E. Bill distinctly notched at end (not notched in any other 



Troglodytidx), 

 a. Bill distinctly notched, very high, and much com- 

 pressed. Nostrils small, truly circular, opening 

 in the middle of the nasal membrane. Tail much 

 shorter than (about two-thirds) the wings . 

 ' b. Bill distinctly notched, quite high and compressed. 

 " " V Nostrils apparently double, the single aperture 

 ''•v'' being divided by a bridge. Tail scarcely more 

 '"'"'' than half the winjs ..... 



c. Bill faintly not'-hed, scarcely higher than broad at 

 the base. Nostrils broadly oval, with membrane 

 above, but no thickened scale ; divided by a 

 eeptum coming to the surface, which, however, 



1-,'.:^ 



Hetendytex, 



Campylorhyn^hus. 



Salpinctes. 

 Cat herpes. 



Cinnicerthia. 



, ll-.r. 



CyphoritiHS. 



Microcerculun, 



?>:o-.' ■■It; . ., 



