1870.] MR. P. L. SCLATER ON THE GENUS COCCYZUS. 165 
2. Further Notes on the Cuckoos of the Genus Coccyzus. 
By P. L. Scrarrr, M.A., Ph.D., F.R.S., Secretary to the 
Society. 
In an article “ On the Species of the American Genus Coccyzus,”’ 
published in this Society’s ‘ Proceedings for 1864 (p. 119 e¢ seqq.), I 
separated from Coceyzus americanus a Jamaican specimen, under the 
name of C. Gairdi, distinguishing it by the absence of rufous colour 
on the outer wing-margins, smaller size, purer white colour below, 
and other minor differences. Since that time Mr. W. T. March, so 
well known by his excellent notes on the birds of Jamaica *, has 
kindly sent me several skins of the Coceyzus americanus of that 
island for comparison, and I have also obtained other specimens of 
this bird from various localities. After carefully examining all these, 
I have come to the conclusion that C. dairdi is not tenable as a spe- 
cies, the skin on which it was founded being in fact merely an indi- 
vidual variety of C. americanus. 
I have also been lately able to compare together a larger series of 
the two ‘‘ Mangrove Cuckoos,”’ Coccyzus seniculus sive minor and 
C. nesiotes, than I had formerly been able to examine, and am now 
of opinion that the latter so-called species of Cabanis and Heine is 
not fairly separable from the former. 
This reduces the number of species of Coccyzus, as given in my 
list (P. Z. 8. 1864, p. 120), by two. On the other hand we must 
add Coccyzus cinereus of Vieillot, of which, as already stated in these 
Proceedings}, 1 have lately examined several specimens, and which 
proves to be a most distinct species, and Coceyzus ferrugineus of 
Gould, which was omitted in my former list. This raises the total 
number of valid species to eight again, which may be arranged as 
follows :— « 
A. Species cauda valde graduata ; mandibula ad basin flava. 
a. Supra pallide cinerei unicolores. 
dem ina, aus pe eens hu antes nc aeeeesonscapaccsse case 1. americanus. 
6’. Infra ochraceuss332 3. - Pee 2 eae! 2. minor. 
6. Supra rufus: pileo cinereo ...........cscceeeseeeeeees 3. ferrugineus. 
B. Species cauda valde graduata; rostro nigro. 
a. Supra fusci. 
a’, Pileo concolori: subttis albus................4. 4. erythrophthalmus. 
b’. Pileo cinereo : subtus ochraceus.........-..... 5. melanocoryphus, 
6, Supra subtusque rufus: pileo plumbeo ............ 6. landsbergi. 
C. Species cauda fere aquali: rostro nigro. 
@,Pectore pallide.cinore |<... .s...-c02s-4.0seasessn: osa00s 7. cinereus. 
ipa POLORE VEE LO RU Of saeiabaiv tec |s spate dee asels sche s> ae caceae 8. pumilus. 
1. CoccyzUs AMERICANUS. 
Cuculus americanus, Linn. 8. N. i. p. 170. 
Cuculus carolinensis, Wils. Am. Orn. iv. p. 13, pl. 28. f. 1. 
Coccyzus pyrrhopterus, Vieill. Enc. Méth. p. 1343. 
* Proc. Acad. Se. Phil. 1863, pp. 150 et 283. 
t P. Z.S. 1869, p. 633. 
