ORNITHOLOGICAL EXPLORATIONS. 79 



only revised his former list, availiug himself of additional material and 

 critical notes of his friends, especially of Bonaparte's. 



This is also evident from an inspection of the subgenus Rissa, which 

 in the "Eevision" has the following aspect: 



35. Iridactylus Liu. The liigli North. 



36. nivetis Pall., brachyrhynchus Goukl. Northwest coast ot America. The hind toe 



better developed. 



37. breviroslris Brandt. Northwest coast of America. Also with better developed 



hind toe ; bill, yellow ; feet, coral-red. 



The only changes are evidently caused by Bonaparte's criticism, and 

 amount to — 



(1) The adoption of Bonaparte's ^'■niveus Pall.," and the reduction 

 of ^'■brachyrhynchus Gould" Bruch (No. 31 of the first list) to a synonym 

 of the latter ; and 



(2) The designation of Northwest America as the habitat of this 

 species. 



But he does not deem it necessary to provide " hrevirostris Brandt," 

 with the new name liotzehuii. 

 We are now justilied in concluding [a) that No. 30, Bruch, 1853 ; No. 



40, Bonaparte, 1854, and No. 35, Bruch, 1855, are unquestionable syn- 

 onyms ; (6) that the same is the case with No. 31, Bruch, 1853 ; No. 



41, Bonaparte, 1854, and No. 36, Bruch, 1855; and with (c) No. 32, 

 Bruch, 1853; No. 42, Bonaparte, 1854, and No. 37, Bruch, 1855. 



We are, in my opinion, further justified in concluding [d) that Bruch's 

 '' brachyrhynchus Gould," and Bonaparte's '^niveus Pall." is the Pacific 

 representative of the Atlantic tridactyla with a somewhat better de- 

 veloped hind toe. 



It will be seen that " brevirostris Brandt " Bruch, with yellow bill and 

 coral-red feet is the one upon which Bonaparte originally bestowed 

 the name hotzebuii. That this view is absolutely correct is proved by 

 Bonaparte's own words on p. 217 of the same article (Naum. 1854*), 

 where he says : " * * * ^e vaudrait-il pas mieux aj)peler Kotzcbui 

 * * * la bonne espece des cotes Nord-ouest de I'Amerique a laquelle 

 on applique le nom i)lus que douteux de brevirostris^ Brandt;" that is: 

 " Would it not be better to give the name hotzebui to that good species 

 from the northwest coast of America, to w^hich has been applied the 

 more than doubtful name brevirostris Brandt." That Bonaparte by 

 "on" means Bruch cannot be doubted. 



* Reprinted in his paper entitled "Notes sur les Larides," in Rev. et Mag. de Zool., 

 1854, p. 10. 



