42 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



have uo iuflueiice on those authors who start from 1758, because the 

 description of the Fauna is of later date, and it ujust have less influence 

 on those who date their specific appellations from 1700, because the said 

 description is older, and those ornithologists pay no attention to names 

 given before that date. It will be the less justifiable for them to use 

 the name of 1701, as this is opposite to the appellation of 1700. 



Mr. Saunders himself states (torn. cit. p. 051) that " these violent 

 transfers must always be productive of confusion even when justifiable." 

 Where the case is clear and allows no doubt, we will have, however, to 

 accept the oldest name, even if the restoration for a short time would 

 produce sojne confusion, but it should never be performed where the 

 case is doubtful, or, like the present, more than doubtful. 



In order to show the proper names of the two species, I give the fol- 

 lowing synonymy : 



1. Stercorariui parasiticus (Lin.) 



1758.— irt>-«s parasiticus LiN. Syst. Nat. ed. 10, I, p. 136 [tiec descr. Faun. 1761 (?), nee 



Less.). 

 1764. — Catharacta cepphus Brunx. Orn. Bor. p. 36 {nee Steph.). 

 1764. — Catharacta coprotheres Bruxx. op. cit. p. 38 (?). 



1773.— iams a-epidatus Banks in Hawkesw. Voy. II (p. 15) {nee Brm. & Schill.). 

 im\.—Lestris hoji Brm., Lehrb. Eur. Viig. II, p. 991. 

 1824. — Lestris schleepii Brm., torn. cit. p. 993. 

 1824. — Lestris henickii Brm., torn. cit. p. 996. 

 1811-31. — Catarractes parasita Pall., Zoogr. Ross. -As. II, \}. 310. 

 1831. — Lestris richardsoni Swaixs., Fauu. Bor.-Amer. p. 433. 

 1862. — Lestris thuliaca Preyer, Reise n. Isl. (p. 418). 

 ISQii.^Stercorarius tephras Malixgr., Jouiii. f. Orn., 1865, p. 392. 

 1873. — Sttrcorarius asiaticus Hume, Stray Feathers (p. 269). 



2. Stereorarius Jongicaudus Vieill. 



1819. — Stereorarius Jongicaudus Vieill., Nouv. Diet. d'Hist. Nat. xxxii. p. 157. 



1822.— "iesfns hujfonii H." Boie," F. Boie, Ms, 1822, pp. 562 and 874. 



1822. — Lestris crepidata Brm. and Schill., Britr. Vogelk. (p. 861) {nee Banks). 



1826. — Stereorarius cepphus Steph. in Shaw, Gen. Zoo!., XIII, I, p. 211. 



\S-2S.— Lestris parasitica Less., Man. d'Oru. II, p. 288 {nee Lixx. 1758). 



1831. — Lestris mierorynchus Brm., Handb. Vog. Deutsohl. p. 725. 



1838. — Lestris lessoni Degl., Mem. Acad. Roy. de Lille, 1838 (p. 108). 



1842. — Stereorarius longicaudatus De Selys, Fauue Belg. (p. 156). 



1855. — Lestris hachyrhynehus Brm., Vogelf. (p. 337). 



1867. — "Lestris irissoni Boie," Degl. and Gerbe, Ornitli. Europ. II, p. 400, 



PODICEPS and COLYMBUS. 



LiNNvEUS united the Grebes and the Loons or Divers in the same 

 genus, Colymhus, but in 1700 Beisson had already separated the Loons 

 from the Grebes, retaining the name Colymbus for the latter. In 1777 

 ScopoLi followed his example. Ten years later Latham applied the 

 name Podiceps to the same group, this consequently being a mere 

 synomym of Colymbus as restricted by Brisson. As the name given 

 by the latter author to the Loons was preoccupied, the next name, which 

 is Cuviek's Urinator, is to be used. The name Eudytes Illiger, 



