OMMATORNIS. — OPETIOPTILA. 
745 
virens Bonaparte, Conspect. Avium II. 27. = Ptilonopus viridis Gray. 
OMMATORNIS Sclater, teste Gray. = Acropternis Cab. 
ONCOSTOMA cinereigulare Sclater, Catal. Coll. amer. Birds Tb. 18. == Todi- 
rostrum cinereogulare. 
olivaceum Sclater, Proc. Zool. Soc. 1864. 358. = Todirostrum oliv acewn L av m. 
ONICHOAETUS Bonaparte. = Onychoaetus Kaup. 
ONOCHRTJS Bonaparte, Naumannia 1856. = Oenochrus Bonap. 
ONOCRALUS Rafinesque 1815. — Pelecanoides Lacep. 
ONOCROTALUS Möhring, Genera Avium 1752. = Pelecanus Lin. 
ONYCHAETUS Kaup, Classif. Säugeth. Vögel 1844. 120. = Aquila Moehr. 
ONYCHOGNATHUS (Sturnidae. — ovu£ unguis, yva^Toç maxilla) Hartlaub, Revue 
Mag. Zool. 1849. I. 494; Journ. Ornith. 1859. VII. 35. = Lamprotornis Teh. 
Synon.: Onyohorhamphus Hartl. 
Rostrum capite longius, a:obustum, valde compressum, grypanium, culmine 
arcuato, basi complanato rotundato, apice acuto, elongato, uncinato; naribus 
apertis. Alae breviusculae, caudae basin vix superantes, rotundatae; remige prima 
spuria, tertia quarta et quinta caeteris longioribus, subaequalibus; remigum tertia- 
riaium et tectricum majorum pogoniis externis fascia mediana longitudinali holo- 
sericea ornatis, margine subdecompositis, laxis, fimbriato-dependentibus. Cauda 
longa, valde gradata, rectricibus angustatis, debilibus, apice acuminato rotundatis. 
Pedes breviusculi, robustissimi , digito interno et externo subaequalibus, illo par urn 
breviore, unguibus magnis, validis, postico validissimo. Ptilosis sericea. 
fulgidus Hartlaub, Revue Mag. Zool. 1849. 495. Tb. 14. — Lamprotornis 
fulgida. 
Hartlaubi Gray, Proc. Zool. Soc. 1858. 291. =. Lamprotornis Hartlaubi. 
0NYCH0PRI0N (Laridae) Wagler, Oken's Isis 1832. == Sterna Lin. 
anasthaetus Blyth, Cat. Birds as. Soc. 293. — Sterna panayensis Gmel. 
fuliginosa Gould, Birds Australia VII. Tb. 32. — Sterna fuliginosa Gmel. 
panaya Gould, Birds Australia VII. Tb. 33. — Sterna panayensis Gmel. 
serrata Wagler, Oken's Isis 1832. = Sterna fuliginosa Gmel. 
0NYCH0PTERUS tuberculifer Reichenbach, natürl. Syst. Tf. 65. == Mißarchus 
tuberculifer Cab. 
ONYOHORHAMPHUS Hartlaub, teste Gray. = Onychognathus Hartl. 
ONYCHORHYJSTCHUS Fischer 1814. = Muscivora Cuv. 
Castelnaui Deville, Rev. Mag. Zool. 1849. 56. = Muscivora Castelnaudi Sclat. 
OlfYCHOSPINA Bonaparte, Revue Mag. Zool. 1857. IX. 162; Compt. rend. 
1853. XXXVII. 919. = Emberiza Lin. 
Aux ailes et aux pieds d'Alouette. 
Typus: Emberiza fucata Pali. 
0NYCH0TES (Buteonidae) Ridgway, Proc. acad. Philadelphia 1870. 142. -= 
Buteo Cuv. 
Nostril nearly circular, with a conspicuous (not central) tubercle. Tarsus 
very long and slender; toes moderate; claws very long, strong and sharp, but 
only slightly curved. Tibial feathers short, close, not reaching below the joint. 
Wing very short, much rounded and very concave beneath; 4. quill longest, 1. 
shorter than the 9. Tail moderate, rounded. 
Gruben Ridgway, Proceed, acad. Philad. 1870. 149. — California. 
OPAETHUS (Musophagidae. — OTuafàoç cujus oculi colore igneo ardent) Vieillot, 
Analyse 1816. 29; Encycl. méth. 1296. — Musophaga Isert. 
Bec emplumé à la base, convexe en dessus, un peu fléchi en arc, comprimé 
latéralement, dentelé du milieu à la pointe. 
Buffoni Vieillot, Encycl. méth, 1297. = Musophaga persa Schleg. 
erythrolophus Vieillot, Encycl. méth. 1298. = Musophaga erythrolopha Schleg. 
persa Vieillot, Encycl. méth. 1297. = Musophaga albicristata Schleg. 
OPETIOPTILA (Penelopinae. — otuyjtiov subula) Sundevall, Methodus Avium 
1872. 118. = Penelope Merr. 
Synon.: Aburria Reichb. 
