OREONYMPHA. — OREOPHILUS 
749 
tàjpa aequat. Cauda quadrata paulo brevior quam in hoc genere. Pedes fortiores, 
tarsi crassiores et breviores , acrotarsiis vix conspicue divisis. 
Fraseri Sclater, Proc. Zool. Soc. 1860. 75. Tb. 159. — Conirostrum Fraseri 
Sclat. 
OREONYMPHA nobilis Gould, Proc. Zool. Soc. 1869. 295. = Trochilus nobilis. 
Bill longer than the head, stout and white a somewhat downward curvature; 
wings large and sickle shaped; tail ample and forked; tarsi clothed nearly to the 
toes, which are of moderate size; the hinder toe and nail rather shorter than the 
middle toe and nail. Nearly allied both to Oxypogon and Ramphomicron. 
OREOPELEIA (Columbidae. — opoç mons, tcsasioc columba) Reichenbach, Tauben 
(1853) 31. = Geotrygon Gosse. 
Synon. : Oropeleia Bonap. 
Schnabel dünn und sehr schmal zusammengedrückt; Kopf klein; Schwinge 2. 
3. 4. am Aussenrande spitzwärts ausgeschweift und verschmälert, 2. und 3. gleich 
und längste; Schwanz kurz, zwölf federig; Lauf und Zehen sehr gestreckt. 
albiventer Gray, Handl. Birds II. 242. = Geotrygon albiventer Lawr. 
caniceps Reichenbach, Tauben 32. = Geotrygon caniceps Gundl. 
coerulea Reichenbach, Tauben 32. = Geotrygon coerulea. 
frenata Reichenbach, Tauben 32. = Geotrygon frenata Bonap. 
linearis Reichenbach, Tauben 32. = Geotrygon linearis Bonap. 
martinica Reichenbach, Tauben 31. = Geotrygon martinica Bonap. 
melancholica Reichenbach, Tauben 33. = Leptoptila melancholica Bonap. 
montana Reichenbach, Tauben 31. == Geotrygon montana Bonap. 
mystacea Reichenbach, Tauben 32. = Geotrygon mystacea Bonap. 
violacea Reichenbach, Tauben 33. = Geotrygon violacea Bonap. 
OREOPERDIX (Perdicidae. — opoç mons, 7üsp5e.§ perdix) Swinhoe, Ibis 1864. VI. 
425. = Perdix Briss. 
Bill thick and heavy, tending to that of Numida, nostrils covered in most 
part by a bulging opercular skin. Legs large; tarse longer than middle toe; 
claws long, straightish and blunt; outer toe longer than inner, both attached by a mem- 
brane to the middle toe as far a second joint and extending in a narrow fringe 
up greater part of the toe; hind toe on a level with the rest and attached to 
the inner toe by a basal web. Wing concave of moderate length; 4. 5. remiges 
longest. Tail soft and very short of 14 rectrices. Throat in typical species in- 
flamed and much denuded. 
crudigularis Swinhoe, Ibis 1864. VI. 426. = Perdix crudigularis. 
OREOPMASIS (Penelopidae. — opoç mons, cpaaiç nom. propr.). — Gray, Genera 
Birds 1844. III. 485. 
Bill lengthened, compressed on the sides; the base of both mandibles covered 
with soft velvety down, forming a short but lengthened crest along the basal portion 
of the culmen to the front of the nostrils; the anterior part of the culmen vaulted 
an arched to the tip; nostrils concealed by the velvety down, except the opening 
which is rather ovate. Wings rather short and much rounded with the sixth and 
seventh quills the longest. Tail lengthened, very broad and much rounded at its 
end. Tarsi rather shorter than the middle toe , robust. Toes long and the lateral 
ones equal; the claws moderate, compressed and slightly curved. The space above 
the eye naked; with a broad rounded and elevated knob, truncated at its end. — 
1 Spec. 
derbyaua Gray, Genera Birds III. 485. Tb. 121. [Guatemala. 
Oreophasis fronticornis van der Hoeven, Unterg. Wirbeith; II. 435. 
OREOPHILUS (Charadriidae. — opoç mons, (piXso amare) Jardine et Selby, Illustr. 
Ornith. Tb. 151. — Gray, Genera Birds 1844. III. 537. = Charadrius Lin. 
Synon.: Dromicus Less. — Oreopholus Jerd. 
Bill lengthened, straight, slender, laterally compressed troughout, the culmen 
straight to the front of the nasal groove, and then slightly arched to the tip, the 
lateral margins nearly straight; the nostrils placed in a lengthened membranous 
groove, the opening basal, longitudinal and exposed. Wings lengthened, with the 
