MIONECTES. 23 
Mionectes assimilis, Scl. P. Z. 8. 1859, pp. 46 '*, 366; Scl. & Salv. Ibis, 1859, p. 124"; P.Z.S. 
1870, p. 837"; Lawr. Ann. Lyc. N. Y. vii. p. 328%, ix. p. 111"; Sumichrast, Mem. 
Bost. Soc. N. H.i. p. 556. 
Olivaceus ; alis et cauda fusco-nigricantibus, pallide fulvescenti-viridi extrorsum limbatis; abdomine et 
subalaribus fulvis: subtus gutture et pectore cinerascenti-olivaceis: rostro nigro, mandibule basi rufe- 
scente; pedibus corylinis. Long. tota 4:8, ale 2°7, caudse 2:0, rostri a rictu 0°65, tarsi 0-6. (Deser. 
maris ex Volcan de Agua, Guatemala. Mus. nostr.) 
@ mari similis. 
Hab. Mexico, Cordova (Sallé*), Jalapa (de Oca, M. Trujillo), hot region of the 
State of Vera Cruz (Sumichrast +"), Hacienda de los Atlixcos (Ff. D. G.), ‘Teapa 
(ZH. H. Smith); British Honpuras, Vicinity of Belize (Blancaneauxr) ; GUATEMALA 
(Skinner 1%), Choctum, Coban, Lanquin, Volcan de Agua above San Diego, Retal- 
huleu (0. 8. & £. D. G.); Honpuras, San Pedro (G. MZ, Whitely*); Nicaraaua, 
Los Sabalos (Nutting ®); Costa Rica, Angostura, Guaitil, Pacuar (Carmiol 1%), 
Turrialba (Arcé) ; Panama, Chiriqui, Bugaba’, Boquete de Chitra 8, Calovevora 8, 
Santa Fé? (Arcé), Lion Hill (MM Leannan > }°).—Sourn America, from Colombia ® 
to Bolivia 4, Amazons valley 4, Eastern Brazil +, and Guiana 4. 
Mr. Sclater separated the Mexican and Guatemalan form of this species under the 
name of J. assimilis, defining it as of larger size, as having a longer bill, and with the 
throat and neck more tinged with ash-colour. The difference of dimensions between 
the northern and southern forms is slight and not more than can be found in a series 
of either of them. The difference in the colour of the throat is not very pronounced, 
and though more apparent in northern examples seems to be less evident in those from 
Costa Rica and the State of Panama, so that the two forms blend so gradually the one 
into the other that we think they should both pass under the title MW. oleagineus. In 
South America WV. oleagineus enjoys a wide range over nearly the whole of the tropical 
portion of the continent, for it is not until we come to Southern Brazil that we find a 
race that is perhaps distinct, having a dark grey head and darker fulvous abdomen; 
this is the W/. rufiventris of Cabanis. 
Little has been recorded of this species. In Guatemala we found it only in the 
heavily forested country of Vera Paz, where it occurs from near the sea-level to an 
elevation of upwards of 4000 feet, and on the mountain-slopes stretching towards the 
Pacific Ocean. In Mexico its range does not extend beyond the forests of the hotter 
portions of the State of Vera Cruz, and it has not been noticed on the Isthmus of 
Tehuantepec, though a little further south it occurs at Retalhuleu. 
In British Guiana Mr. H Whitely obtained specimens near the sea-level at Bartica 
Grove and at an altitude of 3500 feet in the mountains of Roraima. 
