1864.] DR. P. L. SCLATER ON THE GENUS NEOMORPHUS. 249 
3. Notre on THE Species oF Cuckoos OF THE GeNuS NEOMOR- 
pous. By P. L. Scuatrer, M.A., Pa.D., F.R.S., erc. 
In a series of bird-skins from Demerara, which Mr. J. R. Army- 
tage has kindly allowed me to examine, is an example of a species of 
Cuckoo, of the genus Neomorphus of Gloger* (subsequently termed 
Cultrides+ by Pucheran), which has much interested me. It is the 
only specimen I have yet seen, besides the type in the British Museum, 
of the bird described and figured in these ‘ Proceedings,’ by Mr. 
George Gray, as Cultrides rufipennist. Mr. Gray supposed the loca- 
lity of his specimen to be ‘‘ Mexico;” but Mr. Armytage’s speci- 
men having been obtained by his late brother, Mr. James Armytage, 
on the Lower Demerara River, in British Guiana, leaves no doubt of 
the latter patria being correct§. Moreover the same species was 
met with upon the Ucayali by MM. Castelnau and Deville during 
their voyage, and is described by the latter in the ‘ Revue Zoologi- 
que’ under the name Cultrides pucherani\|. At least I have very 
little doubt that the species is the same, although I can say but little 
in praise of the figures of Cultrides pucherani given in the Zoology 
of Castelnau’s Voyage§. I may observe, however, that M. O. Des 
Murs’s supposition there expressed, that this species is the young of 
Neomorphus geoffroyii, appears to have very little foundation. On 
_ the contrary, the two species are very readily distinguishable by 
marked characters, as will be seen by the following diagnoses :— 
1. NEOMORPHUS GEOFFROYII. 
Supra lete virescens, cupreo nitens ; occipite cristato chalybeo, 
cyaneo micante ; sincipite, genis, collo, gutture et pectore fusco- 
brunneis, pallide cineraceo-brunnescente squamulatis ; subtus 
vitta infrapectorali angusta nigra; epigastrio ventreque supe- 
riore pallescentibus ; hypochondriis, tibiis, ventre inferiore cris- 
soque rufo-ferruginescentibus ; rectricum splendide virescentium 
illis que summe ceteras plerumque obtegunt pulchre viola- 
scenti-cupreo nitentibus; rostro flavido, basi pallide cerule- 
scente ; pedibus plumbeo-corneis**. 
Hab. In Brasil. merid.-or. in vic. urbis Bahia et in ripis fl. Bel- 
monte. 
2. NEOMORPHUS RUFIPENNIS. 
Supra lete virescens, occipite cristato et dorso summo purpura- 
scentibus ; alis extus lete rufis; tectricibus minoribus dorso 
concoloribus : subtus ochracescenti-cinereus ; torque collari lato 
bipollicart purpurascenti-nigro; gule plumis cinereis, illo colore 
* Froriep’s Not. 1827, p. 278. 
T Rev. Zool. 1845, p. 51. 
t P. Z. S. 1849, p. 63, pl. 10. 
§ I have never seen any Cuckoo of this form in the many collections of Mexican 
birds that have passed through my hands. 
|| Rev. Zool. 1851, p. 211. 
{| ‘ Expédition de Castelnau,’ Zoologie, Ois. p. 18, pls. 6, 7. 
** Cab. et Hein. Mus. Hein. iv. p. 92. 
