688 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
Hilarocichla Oates, Fauna British India (Birds), 1, Dec, 1889, p. 243. 
Type, Pteruthius rufiventris Blyth {Muscicajyidce.^ 
'IXapoz, cheerful, gay; Kixkr}^ a thrush. 
'"'' Hirundolanvus Clarke." This name is referred to b}^ Count Sal- 
vadori as having been omitted from Waterhouse's " Index." It, 
however, appears to have no standing; it was not printed in the 
Trans. N. Z. Inst., XIII, 1881, p. 454, and was quoted by Buller 
(Birds New Zealand, ed. 2, I, 1888, p. 119) only to be discredited. 
Histriophaps Salvadori, Catal. Birds Brit. Mus., XXI, 1893, p. 529. 
Type, Columba histrionica Gould [jPerist^idce.] 
Ilistrio, an actor; + Phaps {(poctp, a pigeon). 
Homopelia Salvadori, Catal. Birds Brit. Mus., XXI, 1893, p. 409. 
Type, Columba jo^'c^w^'ai^^ Temminck \Peristerid(B.'\ 
(A subgenus of Turtnr.) 
0/x6g^ the same, like; vtEXeia^ a dove. 
Horizocerus Oberholser, Proc. U. S. Nat. Mus., XXII, Oct. 9, 1899, 
p. 28. 
Type, Toccus hartlauh! Gould . . [^Buctrotidce.^ 
' OpiZoo, 1 limit; Kspag^ a horn. 
Horizopus Oberholser, Auk, XVI, Oct., 1899, p. 331, 
New name for Gontopus Cabanis, 1855, not Contipus de Mar- 
seul, 1853 [Ti/rannidcB.] 
' OpiZoo^ I limit; novg, foot. 
Horizorhinus Oberholser, Proc. Acad. Nat. Sci. Phila., June 2, 1899, 
p. 216. 
New name for Cuphopterus Hartlaub, preoccupied. -[7^<r<^^'<^fle.] 
' OpiCcD^ I limit; p/?, nose. 
Houbaropsis Sharpe, Bull. Brit. Orn. Club, I, June 1, 1893, p. 1. 
Type, Otis hengalensis Gmelin [ Otididce.^ 
Ilonhara., native name of a bustard; + o^z?, aspect. 
Houppifer Guerin-Meneville, Icon. Regne Anim. Ois., 1829-1838, 
p. 26. 
Type, Phasianus efrythrophthalmus Raffles \Phasianid(k\\ 
Houppe., tuft, topknot; fero., to bear. 
Hydranassa Heine, in Heine and Reichenow, Nomencl. Mus. Hein. 
Orn., 1890, p. 306. 
Type, Ardea rufa Boddaert [^Ardeidce.^ 
"Tdojp [vdp-)^ water; avaaaa^ queen. 
Hydrobates Temminck, Planches Coloriees, V (livr. 68), 1826, pi. 406. 
Type, Anas lohata Shaw [A7iatidce.] 
Hydrocorax Vieillot, Analyse, Apr., 1816, p. 63. 
Type, '''' Cormoran Butf." { — Pelecanns Garl)o\Aww?^\x^. 
[ PhalacrocoracidcB. ] 
" Tdcop [vdp-), water; Kopa^^ a raven. 
