42 



2. Myiodynastes luteiventris. 



Tyrannus audax, Sclater, P. Z. S. 1856, p. 297. 



Myiodynastes luteiventris, Bp. Compt. Rend, xxxviii. p. 657, et 

 Notes Orn. p. 87 (sine descript.). 



Similis M. audaci ex Amer. merid., sed alis longioribus, collo an- 

 tico prorsus albo, et abdomine toto cum subalaribus citrino-flavis 

 di versus. 



Long, tota 8*5, alae 4*5, caudse 3*4. 



Hab. In Mexico merid., Guatemala, et America centrali. 



Mus> P. L. S. 



This is the representative of M. audax in the northern province 

 of the Neotropical region. Examples of it first came under my 

 notice in M. Salle's first collection from Vera Cruz, when, although 

 referring it to audax, I noticed the probability of its being really 

 distinct. M. Botteri's series from Orizaba likewise contained spe- 

 cimens, some of which are now in my possession ; and Mr. Skinner- 

 has transmitted skins from Guatemala. Prince Bonaparte, in his 

 ' Notes Ornithologiques,' bestowed a couple of new names upon this 

 bird (at least we have no doubt it was this species), without assign- 

 ing any specific characters to it. The examples to which he alludes 

 were from Delattre's Nicaraguan collection. 



3. Myiodynastes nobilis, sp. nov. 



Supra ochracescenti-rufus, nigro variegatus ; plumis medialiter 

 nigris, ochracescenti-rufo undique marginatis : crista brevi ver- 

 ticali interne aurea : loris et macula post-oculari cum striga 

 rictali nigris : fronte et linea superciliari favicantibus : alis 

 nigricantibus ; tectricibus ochracescenti-rufo, secundariis albo, 

 primariis rufo extus limbatis : cauda ferruginea, rectricum om- 

 nium parte mediali, scapam marginante, nigra : subtus albus, 

 abdomine et crisso citrino indutis, pectore et lateribus nigro 

 fiammulatis : subalaribus citrino -flavis : rostro corneo, mandi- 

 hulce inferioris basi alba ; pedibus nigris. 



Long, tota 8'5, alse 4*5, caudse 3'7, rostri a rictu 1 '2, tarsi 0'74. 



Hab. In litt. reipublicae Nov. Grenadse in vicinitate urbis S. 

 Marthse. 



This fine Myiodynastes is a close ally of M. audax and M. lutei- 

 ventris, but is readily distinguishable by its stronger bill, longer tail, 

 which is slightly forked, and the lighter surface of the body below ; 

 this is nearly pure white on the throat and middle of the belly, 

 being rather sparingly flammulated on the breast and sides, which 

 latter parts, along with the crissum, are tinged with yellow. 



The example of this bird in my own collection was obtained from 

 MM. Verreaux of Paris, and was received from their collector at 

 Santa Martha. 



The true type of the genus Myiodynastes, Bp. (a generic term 

 published by the Prince, like many others, without characters, or 

 even the indication of any exact type), was intended, I believe, to 

 have been the Tyrannus audax, Auct. The name first appeared in 



