30 GENERA AND SPECIES OF BIRDS. 
XX. MYRMOCHANES, Allen. 
(Allen, Bull. Amer. Mus. Nat. Hist. ii. p. 95, 1887.) 
1. hypoleucus, Alen. (p. 228, note.) Upper Bolivia 
(Reyes). 
XXI. RHOPOCICHLA, Allen. 
(Allen, Bull. Amer. Mus. Nat. Hist. iil. p. 199, 1891.) 
1. ardesiaca (Wied)*, Allen, . c. Brazil. 
Group TERRESTRES. 
XXII. PITHYS, Vieiil.t 
(Sclater, Cat. B. Brit. Mus. xv. p. 294, 1890.) 
1. albifrons (Gm.). (p. 294.) Guiana. 
Amazonia. 
Colombia. 
2. cristata, Pelz. (p. 294, note.) C. Brazil. 
3. peruviana, Tacz., Orn. Pérou, ii. p.73 (1884). Peru. 
(p. 294, pt.) Ecuador. 
XXIII. GYMNOPITHYS, Bp. 
(Sclater, t. c. p. 296. Cf. Salvin & Godman, B. C.-A., 
Aves, ii. p. 221, 1892.) 
1. bicolor (Lawr.). (p. 296.) C. America 
(Nicaragua to 
Panama). 
2. olivascens, Ridgw., P. U.S, Nat. Mus. xiv. p.469 Honduras. 
(1891). 
* This species, Myiothera ardesiaca of Prince Maximilian, is not included by 
Dr. Sclater in his ‘Catalogue.’ 
+ Mr. Richmond shows that “ Manikup” of Desmareat is older than Pithys (Auk, 
1900, p. 179), but I cannot imagine that this barbarous name can be seriously adopted. 
