234 



Genus II. Myrmotherula. 



Cauda brevis ; seepe brevissima : rectricibus plerumque duodecim, 



interdum decern : rostrum tenue, subulatum, non magis altum 



quam latum : acrotarsiis et paratarsiis divisis. 



In M. pygmaa and the next following species of this genus the 



tail is very diminutive, and the tail-feathers are much narrowed. In 



the latter part of the series it is longer and more hroadly feathered, 



but never so elongated as in true Formicivora. The general facies 



of these two genera is otherwise nearly the same. 



1. Myrmotherula pygm^ea. 



Gobemouche a poitrine orangee de Cayenne, Buff. PI. Enl. 831. 

 fig. 2. 



Muscicapa pygmcea, Gm. S. N. i. p. 933. 



Myrmothera minuta, D'Orb. Voy. p. 184 ? 



Formicivora pygmcea, Cab. Orn. Not. p. 227 ; Bp. Consp. p. 200 ; 

 Sclater, P. Z. S. 1855, p. 147. 



<$ . Nigra : superciliis, striis in dorso medio, et tectricum apicibus 



albis : subtus sulphurea, gula alba : caudce rectricibus decern. 

 $. Capite rufo striato : gula fulvidu. 

 Long, tota 3'2, alas 1*8, caudse 0'8. 



Hob. Cayenne ; New Granada ; Bogota ; Rio Napo ; Bolivia 

 (D'Orb.). 



Mus. Brit., P. L. S. 



2. Myrmotherula surinamensis. (PI. CXLI. fig. 1 c?.) 



Sitta surinamensis, Gm. i. 442 ( $ ). 

 Surinam Nuthatch, Lath. G. H. iv. p. 72. pi. 62. 

 Formicivora quadrivittata, Cab. Orn. Not. p. 227 ; Bp. Consp. 

 p. 209. 



$ . Nigra, albo striata : alis caudaque nigris albo limbatis et ter- 

 minatis : subtus alba, pectore nigro striato. 



5 . Capite rufo, nigro striato : subtus rufo tincta et striis nullis. 

 Long, tota 3*5, alse 1*8, caudse l'O. 

 Hub. Cayenne ; Brit. Guiana ; Rio Napo. 

 Mus. Brit., P. L. S. 



3. Myrmotherula multostriata, sp. nov. (PI. CXLI. 

 %2d,3$.) 



S . Nigra, albo striata : alis caudaque nigris albo limbatis ct ter- 

 minals : subtus alba, lineis angustis nigris omnino striata. 

 2 ■ Capite ferrugineo, nigro striato : subtus pallide rufesccnti- 



albida, striis minus crebris nigris. 

 Long, tota 3*5, alse 1*9, caudse - 9. 

 Hob. Upper Amazon, r. Ucayali (Hauxwell). 

 Mus. Brit., P. L. S. 



