lUKDS OF NORTH AND MIDDLK AMP:RI('A. 617 



Genus NANNORCHILUS I.'idgway. 



rrojmla" (not Urojmlus Edwards, 1872) Sclaiki; ami Sai.vin, X(mi. Av. Neotr., 



1873, 155. (Type, Troglodijlcs Icnrogaslra i'lonUl.) 

 Ifnniura (not Ilemiurux Kudolphi,'' 1809, nor (iervais, '' 1855) Riogway, Proc. 



IT. S. Nat. Mus., x, Au-j:. <>, ISSS, 511 (snhstitiitc for TVo/wZ/a Sclator and 



Sal vin, preoccupied ) . 

 Xiniiiorrliilit.s'l RiDCWAY, I'roc. Biol. Soc. Wash., wii, .\\>i. U. 1H(M, 101'. (Type, 



7Voy/oJ?///'.s' Iciiroydstrn (xould.) 



\vvy small rrog'lodytidie (wiiio- hctwceii 4.") :iii(l T)! niin.) res(Miiblin<,^ 

 'froi/hxh/fcs^ hut with l)ill distinctly notched, iu)stril small, roundish or 

 broadly oyal, nonoperculate, opening in lower anterior portion of 

 nasal fcssa, tail less than two-thirds as long as wing-, and under parts 

 pale gray or grayish white, the upper grayish l)r()wn. 



Bill shorter than head, straight, eomjjressed ])eyond nostrils, its 

 depth at latero-frontal antite equal to much less than half the distance 

 from nostril to tip of maxilla, decidedly gi-eater than its width at same 

 point; exposed culmen much shorter than tarsus (sometimes a little 

 longer, sometimes a little shorter, than middle toe without claw), 

 straight, or nearly so, for basal half (more or h^ss) then gradually 

 decurved terminally; gonys much shoi"t(M' than distance from nostril 

 to tij) of maxilla, straight; maxillary tomium sti-aight for most of its 

 length l)ut faintly decurved both terminally and basally, distinctly 

 notched subterminally ; rictus distinctly Imt gradually detlexed. Nos- 

 tril small, longitudinally oval, nonoperculat(\ but with the naked 

 mem])rane of nasal fossa surrounding it except on lower side. Kictal 

 bristles obvious, two of th(MU (|uite distinct. Wing short, nuich 

 rounded; seventh, sixth, and tiftli primaries longest and about eifual; 

 eighth shorter than fourth; ninth shorter than first, dtH'idedly less 

 than twice as long as tenth. Tail short, slightly more than three-tifths 

 as long as wing, much rounded, the rectrices with l)roadly rounded tip. 

 Tarsus nuich longer than exposed culmen or middle toe and claw, 

 about two-tifths as long as wing, the acrotarsium distinctly scutellate, 

 the planta tarsi booted; outer toe (without claw) reaching to decidedly 

 beyond subterminal joint of middle toe, its claw falling very slightly 

 short of middle claw; itnier toe slightlj' shorter than outer but reach- 

 ing to a little beyond subterminal joint of middle toe; hallux (without 

 claw) eipial to outer toe (without claw), but nuich thicker, its claw 

 much shorter than the digit; ])asal phalanx of middle toe adherent to 

 outer toe for nearly or (luite its entire length, to imuM- toe for more 

 than half its length. 



Coloration. — Plain grayish brown al)ove, the remiges very faintly, 

 the rectrices more distinctly, barred with dusky; superciliary stripe 



« " Ovpoi, Cauda, et rpiXbi, tenuis." t^Exped. Castelnau, i, Mam., 1855, 101. 



''Entozooniiii IIi.«t. Xat., ii, 1809, i, .v8. '! Xaryoz. dwarf; d/jxi^-o?, a wren. 



