3. MICEOMONACHA. — 4. NONNTTLA. 199 



3. MICROMONACHA. 



Type. 

 Micromonaclia, Sd. P. Z. S. 18S1, p. 777 M. lanceolata. 



Under this name I proposed, in 1881, to isolate the little Buko 

 lanceolahis of Dcville from the Upi)er Amazons. Micromonaclui is 

 apparently more nearly allied to Malacoptila than to Bucco, and 

 seems to be best placed as an intermediate form between Malacoptila 

 and Nonnula, differing from the former by its short tail, and from 

 the latter by its shorter and stronger bill. In eoloratioa Micro- 

 monaclia is conspicuously different from all other Bucconidce. 



1. Mlcromonacha lanceolata. 



Bucco lanceolata, Derille, Rev. et Ma//, de Zool. 1849, p. 56 ; Sal. 



Ann. Nat. Hist. ser. 2, xiii. p. .36o ; id. Si/n. Bucc^p. 13, pi. 3; id. 



P. Z. S. 1855, p. 196 ; Scl. rt Salt: Nomencl. p. 106 ; Tacz. Oni. 



Per. iii. p. 127. 

 Capito lanceolatus, Bj). Consp. Vol. Zi/g. p. 13 ; Des 3Iurs, An. nouv. 



ou rares de FB.rp. do Castidnau, Oitt. p. 30. 

 Nystalus lanceolatus. Cab. et Ilein. Mus. Hein. iv. p. 142. 

 Micromonacha lanceolata, Scl. P. Z. S. 1881, p. 777 ; id. Monogr. 



Jac. and Puff-bds. p. 131, pi. xliv. 



Above rufescent brown ; rump-feathers slightly margined with 

 fulvous ; lores and frontal plumes white, separated from tlie cap by 

 a narrow black margin : beneath white, with conspicuous black 

 shat't-stripes ; crissum rufous ; tail above like the back, beneath 

 more cinereous, with a black submarginal band on tho lateral rec- 

 trices ; under wing-coverts buffy white : whole length 4 inches, wing 

 2-6, tail 1"8, bill 1. Female similar. 



Eab. Upper Amazonia and Western Ecuador. 



a, b. Ad. sk. Sarayacu, Ecuador {Btickley). Sclater Coll. 



c, d. Ad. sk. Sarayacu, Ecuador {Bucklei/). Salvin-Godman Coll. 



4. NONNULA. 



Type. 

 Nonnula, Scl. P. Z. S. 1853, p. 124 N. rubecula. 



This genus embraces the smallest and most feeble members of the 

 family. They are nearly allied to Malacoptila and MonacJia, but 

 distinguished by tlieir longer and less elevated bill, and from the 

 former by their longer tail and weaker feet. 



The five si)ecie8 of Nonnula are distributed over Colombia, Ama- 

 zonia, and Urazil. 



Key to the Species. 



A. Cap cinereous ; lores and eye-rim white : 



I breast darker, more rufous 1. rubecula, p. 200. 



) ))reast paler, less rufous 2. cineracea, p. 200. 



B. Cap clu-tnut 3. n/Jicapiila, p. 200. 



C. Cap brt)wn: 



I front more or less rufescent J. frontalis, p. 201. 



I front miiform with back 5. brunnea, p. 201. 



