MTEMELASTBS. 227 



and place in Mynnelastes. This involves a change of name, and we propose to call 

 Mr. Lawrence's bird M. lawrencii. 



3. Myrmelastes intermedius. {Mymiedza immaculata, Tab. LI. figg. 2 6 , 

 3 $.) 



Myrmeciza exsul, Cassin, Pr. Ac. Phil. 1860, p. 191 (?) (neo Sclater) ^ ; Lawr. Ann. Lye. N. Y. 



vii. p. 325 \ 

 Myrmeciza immaculata, Scl. & Salv. P. Z. S. 1864, p. 357'; Salv. P.Z. S. 1870, p. 195 %• Lawr. 



Ann. Lye. N. Y. ix. p. 109 ' ; Boueard, P. Z. S. 1878, p. 61 " ; Nutting, Pr. tJ. S. Nat. Mus. 



vi. p. 405^; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 115 (partim) " ; Scl. Cat. Birds 



Brit. Mus. XV. p. 279 '. 

 Myrmeciza intermedia, Cherrie, Pr. U. S. Nat. Mus. xiv. p. 345 " ? 



Supra obscure badius ; capite toto et corpore subtus usque ad medium ventrem nigricanti-plumbeis, pileo et gula 

 obscurioribus, ventre imo dorso concolore, campterio alari albo : rostro nigro, pedibus obscure corylinis. 

 Long, tota 5-5, alse 2*6, caudse 1'75, rostri a rictu 0'9, tarsi 1"15. 



5 mari similis, sed pileo obscure badio tincto, gula tantum plumbea, abdomine et pectore dorso concoloribus. 

 (Descr. maris et feminse exempl. typ. ex Panama. Mus. nostr.) 



ffab. NiCAEAGUA, Los Sahalos {Plotting ''); Costa Kica, Pacuare ^, Angostura ^, La Balsa 

 (Carmiol), San Carlos, San Mateo (Boueard^), Jimenez (Zeledon^), Carillo (C. F. 

 Underwood) ; Panama, Bugaba [Arce ^), Lion Hill Station (M'Leannan ^ ^), Chepo 

 (Arce), Turbo (Wood^). 



This species is closely allied to Myrmeciza exsul of Colombia *, from which it differs 

 in having the wing-coverts unspotted. Panama specimens were at first referred to the 

 southern form ^ ^, but were separated therefrom by Sclater and Salvin in 1864, under 

 the name of Myrmeciza immaculata ^, which name must again give way, as there is 

 already a species called immaculatus in the a;enus now used. 



The range of this bird has now been traced through the State of Panama and Costa 

 Kica to Eastern Nicaragua f, Mr. Nutting having met with it at Los Sabalos ^ on the 

 Eio San Juan del Norte which drains the great lake. Here he states that M. intermedius 

 is common, and lives upon the ground in the dense forest. Mr. Wood ^ noticed this 

 bird in the thick and dry parts of the forest at Turbo on the Isthmus of Darien in some 



* In Mr. Sclater's original description (P. Z. 8. 1858, p. 540) this species is assigned to Panama (Belattre) 

 and Nicaragua, but it almost certainly lives further south. 



t If Mr. Oherrie's Myrmeciza intermedia " is distinct from M. immaculata, •which, seems to us very doubtful, 

 the range of M. im,maculata must be further curtailed, and it must have a new name. Mr. Cherrie gives it as 

 extending from Panama to Talamanca (S.E. Costa Rica), that of M. intermedia from Panama and the Atlantic 

 lowlands of Costa Rica (i.e. inclusive of Talamanca) to Nicaragua. Thus these two supposed forms are found 

 together over a considerable area. We have not seen authentic specimens of M. intermedia, but our single 

 adult male from Costa Rica, which ought to be of this form, seems absolutely undistinguishable from the 

 Panama types. The first primary is not edged with white in any of our Panama birds, nor can the under 

 wing-coverts be described as white — both characters, according to Mr. Cherrie, of M. immaculata. 



29* 



