PACHYRHAMPHUS. 125 
exceptions in the latter respect, the sexes being alike, and only to be distinguished by 
the form of the second primary in the male. 
Mr. Ridgway gives us a character whereby to distinguish Platypsaris (= Hadro- 
stomus) from Pachyrhamphus, by the covering inner surface of the posterior half of the 
tarsus, which in the former, he says, is covered with a series of large scales, but in the 
latter is naked; this seems to hold good when Z. aglaie and P. major are compared, 
but nearly all the other species of Pachyrhamphus agree in this respect with Hadro- 
stomus, so that this character does not seem to be trustworthy for diagnostic purposes. 
A. Sexes dissimiles, marium rectricibus stricte albo marginatis. 
1. Pachyrhamphus versicolor. 
Vireo versicolor, Hartl. Rev. Zool. 1843, p. 289°. 
Callopsaris versicolor, Cab. & Heine, Mus. Hein. ii. p. 89. 
Pachyrhamphus versicolor, Boucard, P. Z. 8. 1878, p. 65°; Scl. Cat. Birds Brit. Mus. xiv. p. 339+. 
Supra niger ; dorso imo cinereo ; alis nigris ; secundariis internis et tectricibus albo marginatis; cauda cinerea 
albido stricte terminata: subtus albus nigro indistincte fasciatus; loris, gula et cervicis lateribus viridi- 
flavo lavatis; subalaribus albis: rostro et pedibus nigricantibus. Long. tota 4°7, alse 2°7, caude 1:9, rostri 
a rictu 0°55, tarsi 0°6. 
2 supra viridi-olivacea, capite summo griseo; alis castaneo marginatis: subtus mari similis, sed undique 
viridi-flavo lavatus. (Descr. maris et feminee ex Intac, Ecuador. Mus. nostr.) 
Hab. Costa Rica, Candelaria (Boucard *).—Cotomsia 12; Ecuapor. 
This species is included here on the authority of M. Boucard, who obtained a single 
specimen at Candelaria in Costa Rica during his visit to that country in 1877. It 
occurs in the Colombian State of Antioquia, is commonly seen in the trade collections 
made in the vicinity of Bogota, and is also found in the northern districts of Ecuador. 
P. versicolor stands alone in the genus, no other species having the under surface 
barred in a similar manner. 
Nothing as to its habits is on record. 
2. Pachyrhamphus cinereus. 
Pipra cinerea, Bodd. Tabl. Pl. Enl. p. 43', ex Daub. Pl. Enl. 687, p. 1”. 
Pachyrhamphus cinereus, Lawr. Ann. Lyc. N. Y. vii. p. 320°; Scl. & Salv. P.Z. S. 1864, p. 361‘; 
Scl. Cat. Birds Brit. Mus. xiv. p. 841° 
Supra cinereus ; dorso medio olivaceo lavato; capite summo nigro; loris et fronte stricte albis; alis nigris, 
tectricibus et secundariis intimis griseis albo marginatis; cauda grisea, plumis omnibus medialiter nigris 
albido stricte marginatis : subtus albidus, pectore et hypochondriis cinereis, illo quoque olivaceo vix tincto: 
rostro et pedibus nigricantibus. Long. tota 5-0, ale 2°75, caudex 2:0, rostri a rictu 0°65, tarsi 0°7. 
Q cinnamomea, capite paulo obscuriore ; alis nigricantibus extus et intus cinnamomeo marginatis. (Deser. 
maris et femine ex Lion Hill, Panama. Mus. nostr.) 
Hab. Panama, Lion Hill (M/*‘Zeannan‘), Paraiso (Hughes), Chepo (Arcé).—Soutu 
America from Colombia to Guiana. 
