444 Mr. P. L. Sclater’s List of the Tyrant-birds of Mexico. 
(1) C. olivaceus, ex Brasil.; (2) C. sp. ? probably new, ex fl. Ama- 
zonmn sup.; (3) C. brevirostris, ex Mexico ; (4) C. sulphur escens, 
ex Brasil., fl. Amaz., et Nova Grenada; (5) C. schistaceiceps, ex 
Mexico; (6) C. flaviventris, ex Brasil., fl. Amaz., et Nov. Grenada; 
(7) C. ruficauda (Spix), ex Cayenna et fl. Amazon. 
The last-named bird is rather aberrant in form. 
38. Todirostrum cinereum (Linn.); P. Z. S. 1857, p. 203. 
Hab. S. Mexico, Santecomapam (Boucard), and southwards 
to Mexico and Guatemala. 
39. Todirostrum schistaceiceps, sp. nov. 
Olivaceo-viride, pileo toto cum nucha obscure schistaceis : ma¬ 
cula ante-oculari alba : alis nigris, flavicante extus limbatis; 
cauda nigra,' olivaeeo extus limbata : subtus cinerascenti- 
album, gutture albescentiore, ventre medio lactescenti-albo, 
lateribus flavescentibus : campterio flavo, tectricibus sub- 
alaribus pallide citrims; rostro nigro, tomiis pallidis; pedibus 
pallide corylinis: long, tota 3*5, alee 1*9, caudse 1*2, rostri 
a rictu 6*5, tarsi 0*75. 
Hab. In Statu Oaxaca, reipubl. Mexicanse (Boucard). 
Mus. P. L. S. 
This new Todirostrum is the only species that I have seen from 
the country north of Panama besides T. cinereum and the next 
aberrant bird, of which it will probably be necessary to form a 
separate division. I am now acquainted with more than twenty 
species of this group, but none of them much resemble the pre¬ 
sent bird in coloration. 
40. Todirostrum cinereigulare, Selater, P. Z. S. 1856, 
p. 295. 
Hab. S. Mexico, Cordova (Salle). 
Mus. P. L. S. 
41. Camptostoma imberbe, Selater, P. Z. S. 1857, p. 203. 
(Plate XIV. fig. 1.) 
S. Andres Tuxtla, Vera Cruz (Boucard). 
I here give a figure of this singular little bird from M. Sallees 
type specimen, which is in my cabinet. I have not yet met with 
a second example. I have pointed out its peculiar charac¬ 
teristics in my original description referred to above. Its short 
