744 
OLIGOMYDRUS. — OMEOTRERON. 
Drymoica rufescens Gray, Genera Birds Suppl. App. 30. 
Sylviella rufescens Sundev. 
OLIGOMYDRUS (Lamprotornithinae. — oXiyoç paullum, u.uopoç ardor) Hartlaub, 
Journ. Ornith. 1859. VII. 34. — Lamprotomis Tem. 
Rostrum mediocre, gracillimum, rectum, compressum, emarginatum, culmine 
recto, dertro subdeflexo. Alae médiocres, caudae medium non attingentes, remige prima 
spuria, tertia omnium longissima, secunda parum breviore. Cauda longa cuneata; 
rectricibus duabus intermediis elongatis, apicem versus valde august atis. Pedes 
robusti, longiusculi. Ptilosis sericea, nitore metallico satis conspicuo. Pilei et 
nuchae plumae apice truncatae. 
tenuirostris Hartlaüb, Journ. Ornith. 1859. VII. 35. = Lamprotomis tenui- 
rostris Rüpp. 
sturninus v. IIeuglin, Journ. Ornith. 1863. XI. 15. = Lamprotomis tenui- 
rostris Rüpp. 
OLIGURA (Troglodytinae. — oXiyoc parvus, oupa caudu) Hodgson, Proc. Zool. 
Soc. 1845. XIII. 25. = Tesia Hodgs. 
General structure of Pnoepyga, but the tail more developed and furnished 
with twelve plumes, the bill more depressed; rictus less entirely smooth; nareal 
tect less developed and nares consequently ovoid; lateral toes unequal, hind large, 
and nails more acute. 
cyaniventer Hodgson, Proc. Zool. Soc. 1845. XIII. 25. = Tesia cyaniven- 
tris Hodgs. 
flaviventer Hodgson, Proc. Zool. Soc. 1845. XIII. 25. — Tesia castaneocoro- 
nata Blyth. 
OLIGURA (Malurinae. — oXtyoç parvus, oupa cauda) Rüppell, syst. Uebers. 
Vögel NOAfr. 1845. 29. = Oligocercus Cab. 
Rostrum capite brevius, gracile, acuminatum, subcurvum, antice compressum, 
tomiis integerrimis; nares in basi maxillae, patulae, ovales, supra membrana 
semiclausae. Lingua mediocris, cartilaginea , intégra; fibrissae nullae. Alae mé- 
diocres, attamen apicem caudae attingentes. Remigum prima dimidio brevior 3. 
et 4., quae aequales. Remiges secundariae elongatae. Cauda brevissima, aequalis. 
Tarsi modici, scutulati; hallux digito externo longitudine aequali; digiti externi 
basi connexi, medius externo, externus interno longior. Unguis posticus anticis 
duplo major- 
brachyptera Bonaparte, Conspect. Avium I. 257. = Oligocercus microurus Cab. 
brachyura Sundevall. = Oligocercus microurus Cab. 
meridionalis Bonaparte, Conspect. Avium I. 237- — Spec, delend. 
micrurus Rüppell, syst. Uebers. NOAfr. 29. = Oligocercus microurus Cab. 
0L0LYG0N Cabanis 1863. = Cuculus Lin. 
OL0R Wagler, Okeu's Isis 1832. == Cygnus Lin. 
OMBRIA (Phaleridae. — ofJißpia pluvia) Eschscholtz, Zool. Atlas 1829. III. Tf. 17. 
— Brandt, Bullet, acad. St. Petersburg 1837. II. 347 ; 1869. VII. 236. = 
Phaleris Tem. 
Rostrum valde compressum et altum a latere inspectum fere ovale. Maxilla 
sub apice emarginata scalpello, mandibula apice suo acutissimo sursum directo 
falci similis. 
psittacula Eschscholtz, Zool. Atlas III. Tf. 17. = Phaleris psittacula Tem. 
OMEOTRERON (Columbidae) Bonaparte, Compt. rend. 1859. XXXIX. 878; Con- 
spect. Avium II. 27. = Ptilonopus Swains. 
Rostrum robustum; pedes fortes; alae elongatae, remigibus omnibus castiga- 
tis, acutis, prima longiore quam 5., 2. 3. omnium longissimis; cauda elongata, sub- 
truncata, rectricibus 12 strictis. Colores virides uniformes, pileoconcolore. 
batilda Bonaparte, Conspect. Avium II. 27. == Ptilonopus porphyreus. 
bicincta Holdworth, Proc. Zool. Soc. 1872. 465.— Treron bicincta Blyth. 
Feliciae Bonaparte, Conspect. Avium II. 27. — Ptilonopus luteovirens Puch. 
pompadura Holdsworth, Proc. Zool. Soc. 1872. 465. = Treron malabarica 
Blyth. 
