262 TANAGRID. 
Euphonia hirundinacea is an inhabitant of the low-lying hot districts wherever it is 
found, and seldom appears to ascend the mountains higher than about 2000 or 3000 
feet. In such hot situations Sumichrast met with it 1011; and in Guatemala its range 
seems thus restricted, though we have noted its occurrence near Coban, the elevation 
of which is over 4000 feet. 
7. Euphonia gnatho. 
Phonasca gnatho, Cab. J. f. Orn. 1860, p. 335°. 
Euphonia gnatho, Lawr. Ann. Lyc. N. Y. ix. p. 98°. 
E. hirundinacee persimilis sed rostro multo robustiore forsan distinguenda. (Descr. exampl. ex Tempate, 
Costa Rica. Mus. nostr.) 
Hab. Costa Rica (v. Frantzius 1), Tempate, Nicoya (Arcé). 
Dr. Cabanis described this species from a single specimen sent in Dr. von Frantzius’s 
first collection from Costa Rica, comparing it with LE. chalybea of Brazil, especially as 
regards the size of the bill, which he characterized as “ rostro nigro, crasso, culmine 
valde incurvato.” | 
We possess a specimen having a bill of this description, but we much doubt it really 
signifies that a third species distinct from E. hirundinacea and LE. laniirostris exists in 
Costa Rica. With the former of these birds, the example alluded to agrees in every 
respect except in the greater development of the bill; and we doubt if this difference, 
taken alone, is of specific value, especially as the true L. hirundinacea also undoubtedly 
occurs in Costa Rica. . 
The peculiarity of the bill may be produced by the harder nature of the food upon 
which the bird feeds in the districts where it is found. Some of the Costa-Rica speci- 
mens of EF. hirundinacea vary to a slight extent in the size of their bills, showing that 
it is not at all improbable that the extreme form of LH. gnatho may be reached by 
gradual steps. 
On the whole we think it best to allow E. gnatho to stand as distinct from E. hirun- 
dinacea until a better series of specimens confirms it in this position, or shows the 
name to be a synonym of LH. hirundinacea. 
8. Euphonia laniirostris. 
Euphonia laniirostris, @ Orb. & Lafr. Syn. Av. i. p. 80*; d’Orb. Voy. Am. mér., Ois. p. 266, t. 22. 
f. 1°; Salv. & Godm. Ibis, 1879, p. 199°; Scl. & Salv. P. Z. 8. 1879, p. 598*; Salv. Cat. 
Strickl. Coll. p. 180’. 
Euphonia crassirostris, Scl. P. Z. 8. 1856, p. 277°; Scl. & Salv. P.Z.S. 1864, p. 349"; Lawr. 
Ann. Lye. N. Y. viii. p. 174°; Salv. P. Z.S8. 1870, p. 186°; Tacz. P. Z.8. 1877, p. 8320”. 
Euphonia hirundinacea, Lawr. Ann. Lye. N. Y. vu. p. 298”. 
Euphonia, sp.?, Salv. P. Z. 8. 1867, p. 188”. | 
FE. hirundinacee similis sed macula pilei flava majore et postice rotundata, maculis quoque caude rectricum 
