352 
HYDROBAÏES. — HYDROCHELIDON. 
albicollis Vieillot, Encycl. méth. 686. == Cinclus albicollis Salv. 
albicollis Vieillot, Galerie Oiseaux ïb. 152. = Cinclus aquaticus Bechst. 
ardesiaca Gray, Handl. Birds I. 267. = Cinclus ardesiacus Salv. 
asiatica Gray, Genera Birds I. 215. = Cinclus asiaticus Swains. 
bicolor Vieillot, Encycl. méth. 686. = Cinclus albicollis Salv. 
cashmiriensis Jerrdon, Ibis 1872. II. 133. = Cinclus cashmiriensis Gould. 
cinclus Gray, Genera Birds I. 215. = Cinclus aquaticus Bechst. 
leucocephala Gray, Genera Birds I. 215. = Cinclus leucocephalus Tschud. 
leucogaster Gray, Handl. Birds I. 267. == Cinclus aquaticus Bechst. 
leuconota Gray, Handl. Birds I. 267. = Cinclus leuconotus Sclat. 
marila Swinhoe, Journ. China Soc. Shangai 1860. = Cinclus marila Swinh. 
melanogaster Gray, Handl. Birds L 266. = Cinclus aquaticus Bechst. 
mexicana Baird, Birds NAmerica 229. = Cinclus mexicanus Swains. 
Pallasi Gray, Genera Birds I. 215. sa Cinclus Pallasi Tem. 
sordida Gray, Handl. Birds I. 267. = Cinclus sordidus Gould. 
unicolor Gray, Genera Birds I. 215. Cinclus mexicanus Swains. 
HYDROBATES lobatus Temminck, PI. color. 406. = Biziura lobata Leach. 
HYDROBATES Leachi Boie, Oken's Isis 1822. = Procellaria leucorrhoa Vietll. 
oceanica Boie, Oken's Isis 1826. 980. = Procellaria oceanica Forst. 
HYDROCECROPIS (Sternidàe. — vhuç aqua, cecropis nom. propr.) Boie, Oken's 
Isis 1844. 178. == Sterna Lin. 
Ptilosis Candida, stragulo cinereo, pileo aterrimo. Longitudo 12 — 16"'. 
Rostrum et pedes cinnabarina. Palama parvulum excisa. Caudae forficatae rectrices 
extimae longissimae. 
albigena Boie, Oken's Isis 1844. 178. — Sterna albigena Lichtst. 
antarctica Boie, Oken's Isis 1844. 178. — Sterna antarctica Forst. 
aurantia Boie, Oken's Isis 1844. 178. =s= Sterna aurantia Gray. 
brachypus Boie, Oken's Isis 1844. 178. = Sterna brachypus Swains. 
camtschatica Boie, Oken's Isis 1844. 178. = Sterna longipennis Erm. 
coronata Boie, Oken's Isis 1844. 178. — 
Delamottei Boie, Oken's Isis 1844. 178. = Sterna hybrida Pall. 
Dougalli Boie, Oken's Isis 1844. 178. == Sterna Dougalli Tem. 
hirundinacea Boie, Oken's Isis 1844. 178. = Sterna hirundinacea Cuv. 
hirundo Boie, Oken's Isis 1844. 178. — Sterna hirundo Lin. 
leucogenys Boie, Oken's Isis 1844. 178. = Sterna hybrida Pall. 
longipennis Boie, Oken's Isis 1844. 178. = Sterna longipennis Erm. 
macrura Boie, Oken's Isis 1844. 178. == Sterna macrura Naum. 
melanoptera Boie, Oken's Isis 1844. 178. = Sterna fuliginosa Gmel. 
Nuttalli Boie, Oken's Isis 1844. 178. = Sterna Nuttalli Aud. 
panayensis Boie, Oken's Isis 1844. 178. = Sterna panayensis Gmel. 
senegalensis Boie, Oken's Isis 1844. 178. == Sterna senegalensis Swains. 
similis Boie, Oken's Isis 1844. 178. = Sterna similis Gray. 
tenuirostris Boie, Oken's Isis 1844. 178. = Sterna tenuirostris Tem. 
vittata Boie, Oken's Isis 1844. 178. = Sterna vittata Gmel. 
Wilsoni Boie, Oken's Isis 1844. 178. = Sterna Wilsoni Bonap. 
HYDROCHELIDON (Sternidae. — u5wp aqua, y/AiSov hirundo) Boie, Oken's Isis 
1822. 563; 1826. 980; 1844. 183. = Sterna Lin. 
Synon.: Viralva Leach. — Pelodes Kaup. 
Ptilosis atrocoerulescens, albo et cinereovaria, juniorum sicut adultorum tem- 
pore hiemali magis albescens. Longitudo 8 — 12". Cauda subaequalis, digiti 
semipalmati; digitus intermedius tarso longior. 
albistriata Gray, Voy. Erebus Terror Birds Tb. 21. = Sterna hybrida Pall. 
fissipes Boie, Oken's Isis 1844. 183. = Sterna fissipes Lin. 
fluviatilis Gould, Proc. Zool. Soc. 1842. X. 140. = Sterna hybrida Pall. 
grisea Boie, Oken's Isis 1844. 183. = Sterna hybrida Pall. 
hybrida Gray, Genera Birds III. 660. = Sterna hybrida Pall. 
indica Gray, Genera Birds III. 660. — Sterna hybrida Pall. 
