RHINOCHETUS. — RHINOPOMASTES. 
425 
RHINOCHETUS jubatus Hartlaub. = Mhinochaetus jubatus Verr. 
RHINCHAEA Bonaparte 1839. := Rhynchaea Cuv. 
RHINOCOCCYX Sharpe, Proc. Zool. Soc. 1873. 604. = Phoenicophaus curvi- 
rostris Gray. 
RHINOCRYPTA (Myiotherinae. — p(.v naris, xpUTTTV] cuniculus) Gray, List Genera 
Birds 1841. 25; Genera Birds I. 154. = Pteroptochus Kittl. 
Syno7i.: Rhinomyia Geo£fr. — Megalonyx Less. 
Bill moderate and strong, with the culmen gradually curved and the sides 
compressed to the tip, which is slightly emarginated; the lateral margins curved, 
and the gonys short and ascending; the nostrils lateral and placed in a short 
reather broad groove with the opening entirely covered by a horny scale. Wings 
short and rounded, with the fourth and fifth quills equal and longest. Tail long, 
broad and rounded. Tarsi moderate, longer than the middle toe, robust and cov- 
ered with broad scales. Toes long and robust, the outer toe longer than the 
inner one and slightly united at the base; the hind toe short. 
fusca ScLATER, Nomencl. Av. neotrop. 161. = Pteroptochus fuscus. 
lanceolata Gray, Genera Birds I. 154. = Pteroptochus lanceolatus. 
RHINOGRYPHUS (Vulturinae. — ptv naris, ypu^» vultur) Ridgeway, Birds NAme- 
rica 337. — Sharpe, Catal. Accip. brit. Mus. — Cathartes Illig. 
Si/non. : Oenops Sharpe. 
burrovianus Gurney, Ibis 1875. V. 94. = Cathartes aura Illig. 
pernigra Hume. — Sharpe, Catal. Accip. brit. Mus. = Cathartes urubitinga 
Natter. 
urubitinga Hume — Sharpe, Catal. Accip. brit. Mus. — Cathartes urubitinga 
Natter. 
RHINOMYA (Myiotherinae. — p(,v naris, [jlug) claudo) Geoffroy, Magaz. Zool. 1832. 
II. Ois. Tb. 3. — d'Orbigny, Voy. Amer, mérid. 193. = Pteroptochus Kittl. 
Bec médiocre, assez court, comprimé, arrondi et arqué en dessus légèrement 
denté, près de l'extrémité de la mandibule supérieure; mandibule inférieure droite, 
non échancrée a son extrémité. Narines placées dans une cavité profonde de la 
base du bec, formant une fente longitudinale, recouvert par un opercule ovale, forte- 
ment convexe. Tarses forts et longs; doigts très robustes a ongles assez longs 
et peu arqués. Ailes très courtes, la première rémige très courte, la quatrième 
la plus longue: toutes n'arrivant qu'à la base de la queue. Cette dernière partie 
assez longue et étagée, composée de douzes rectrices. Plumes coccygiennes lâches 
et longues. 
lanceolata Geoffroy, Mag. Zool. 1832. II. Ois.> Tb. 3. = Pteroptochus lan- 
ceolatus. 
RHINOPLAX Gloger, Handb. Natgesch. 1842. — Sundevall, Meth. Avium 96. 
= Buceros Lin. 
Cauda corpore longior, valde gradata; pennis 2 mediis longissimis. Rostrum 
capite parum longius, minus curvatum. 
galeatus Sundevall, Meth. Avium 96. = Buceros scutatus Bodd. 
scutatus Moore, Proc. Zool. Soc. 1859. 446. = Buceros scutatus Bodd. 
RHINOPOMASTES (Irrisorinae. — piv naris, 7CG){j.a operculum) Smith 1828. — 
Jardine, Zool. Journ. 1829. IV. 2. = Irrisor Less. 
Rostrum elongatum, incurvam, gracile, teretiusculum, basi trigonum. Nares 
basales, mediae, parviae, membrana semiclausae scutelloque incumbente tectae. 
Alae médiocres. Cauda gradata, elongata. Pedes insessores médiocres; tarsis 
brevissimis, acrotarsio scutulato, paratarsio integro; digito exteriore ad secundam 
phalangem connexo, interiore libero, acropodio scutulato; halluce robusto ; unguibus 
validis, compressis, hallucis validiore. 
Cabanisi Reichenbach, Handb. Ornith. I. 326. — Irrisor Cabanisi Fil. 
cyanoleucus Pz. Paul Würtbg. = Irrisor aterrimus Gray. 
cyanomelas Lesson, Traité Ornith. 239. = Irrisor cyanomelas Gray. 
ieterorhynchus v. Heuglin. 
Levaillanti Lesson. = Irrisor cyanomelas Gray. 
