THAL ASSI AETUS. — THALASSOICA. 
G15 
pelicanoides, poliocercus Gould, Birds Austr. VIII. Tb. 23. 24. = Sterna 
Bergi Lichtst. 
THALASSIAETUS. = Thalassaetus. 
THALASSIDROMA (Procellariadae) Vigors, Zool. Journ. 1826. II. 405. = Pro- 
cellaria L. 
Rostrum subbreve attenuatum, compressissimuni, apice subito deorsum curvato; 
iiaribus prominentibus in tubum unum conjunctis. Alae longae acurnitiatae, remige 
prima tertia breviori, quarta longiori, secunda longissima. Pedes subgraciles, tarsis 
elevatis, acrotarsiis paratarsiis integris. 
albofasciata Brehm, Naumannia 1855. = Procellaria pelagica L. 
Bullocki Selb Y , brit. Ornith. II. 573. = Procellaria leucorrhoa Vig. 
Bulweri Gray, Genera Birds III. 648. = Procellaria Bulweri. 
cinerea Gould, Voy. Sulphur. 50. = Procellaria furcata Gmel. 
fasciolata v. Tschudi, Journ. ornith. 1856. 180. = Procellaria fasciolata Coues. 
ferroensis Brehm, Naumannia 1855. = Procellaria pelagica L. 
fregatta Gray, Genera Birds III. 648. = Procellaria /regatta L. 
fregatta Lawrence, Ann. Lyc. New York 1851. 117. = Procellaria Lawrencei. 
fuliginosa Gray, Genera Birds III. 648. = Procellaria fuliginosa Bks. 
furcata Gray, Genera Birds III. 648. — Procellaria furcata Gmel. 
gracilis Elliot, Ibis 1859. 391. = Procellaria gracilis, 
grallaria Gray, Genera Birds III. 648. = Procellaria melanogastra Schleg. 
Hornbyi Gray, Proc. Zool. Soc. 1863. 62. = Procellaria Hornbyi. 
Leachi Bonaparte, Journ. acad. Philad. IX. Tb. 8. Fig. 2. — Procellaria 
leucorrhoa V. 
leucogaster Gould, Ann. mag. nat. hist. 1844. XIII. 367. = Procellaria 
grallaria V. 
lineata Peale, Un. St. Expl. Exp. 293. = Procellaria lineata. 
Macgillivrayi Gould, Birds trop. isl. 56. = Procellaria Macgillivrayi. 
marina Gould, Birds Austr. VII. Tb. 61. = Procellaria fregatta L. 
melania Bonaparte, Consp. Av. II. 196. — Procellaria scapulata Brdt. 
melanogaster Gould, Birds Austr. VII. Tb. 62. = Procellaria melanogastra Schl. 
melitensis Schamb , Catal. ornith. Malta 118. = Procellaria pelagica L. 
minor Brehm, Naumannia 1855. = Procellaria pelagica L. 
monorhis Swinhoe, Ibis 1867. 386. = Procellaria monorhis. 
nereis Gould, Proc. Zool. Soc. 1840. 178. = Procellaria nereis Bp. 
nivea Reichenbach, nat. Syst. Tf. 22. = Procellaria nivea Gmel. 
oceanica Kühl, Monogr. Proc. Tb. 10. Fig. 1. = Procellaria grallaria V. 
oceanica Gray, Genera Birds III. 648. = Procellaria oceanica. 
pelagica Vigors, Zool. Journ. 1826. II. 405. = Procellaria pelagica L. 
Segethi Philippi, Wiegm. Arch. 1860. 262. Procellaria Segethi. 
tenuirostris Brehm, Naumannia 1855. = Procellaria pelagica L. 
tropica Gould, Proc. Zool. Soc. 1837. 366. = Procellaria tropica Schl. 
Wilson! Bonaparte, Ann. Lyc. New York 1826. 367. == Procellaria oceanica. 
THALASSORNIS leuconotus Eyton, Mon. Anat. 166. — Biziura leuconota Smith. 
Pedes digitis posterioribus lobatis, externis intermediis vix aequantibus. Tibiae 
plumosae. Rostrum validum latum; lateribus parallelibus; et ungue magna ar- 
matum. Nares parvae, ovales; in medio rostri culmen versus positae. Cauda 
rotundata rectricibus brevibus et subrigidis instructa. Alae breves, remigibus ad 
apices incurvatis. 
THALASSIPORA Boie. — Sterna fuliginosa Gmel. 
THALASSITES magnirostris Swainson, Class. Birds 1837. II. 372. = Sterna 
magnirostris Lichtst. 
Bill strong; the culmen curved from the base; the gonys short and hardly 
angulated; the commissure curved. Nostrils towards the middle of the bill, oval. 
Feet strong. Tarsus longer than the middle toe. The binder claw straight. 
THALASSOICA Bonaparte, Compt. rend. 1856. XLIII. 996. — Coues, Proc. 
acad. Philad. 1866. 29. = Procellaria SmitM Schleg. 
