398 APPENDIX. 



Genus (ESTRELATA. Type by subsequent designation o£ 

 Coues (Proo. Acad. Nat. Sci. Philad. 1866, p. 137) : 

 (E. Jiasitata (Kubl). This genus, whicb was wrongly 

 spelled ^strelata by Bonaparte, was proposed by liim 

 ((yomptes Eendus, xlii. 1856, p. 768) for the Capped 

 Petrel, Procellaria Jiasitata Kubl. On the same 

 page o£ the same journal, but a few lines previously, 

 Bonaparte iiitrodnced Pterodroma [or Procellaria macro- 

 ptera of Siuilli. These two birds are undoubtedly 

 coneeneric, and it has recently been argued that Ptero- 

 drotna, which has been generally ignored, should stand. 



The mistake has probably arisen because these names 

 have generally been quoted as first described in the 

 ' Conspectus Genera Aviu-m,' vol. ii., and in that work 

 ^strelata comes first on p. 18B, Pterodroma on p. 191. 

 The sheet containing these descriptions is dated 1856, 

 but there is internal evidence to show that it could 

 not have been issued till a subsequent year. The 

 names, therefore, must first have been introduced in 

 the Comptes Rendus for 1856. 



The Committee have not considered it advisable to 

 substitute Pterodroma for (Estrelata, as there is not 

 even a question of page priority. 



Genus BULWEEIA. Type by monotypy : B. hidweri 

 (J. & S.). 



Biilweria bulweri. Jardine and Selby's name for this Petrel, 

 proposed in 1828, is older than that of Moquin-Tandon, 

 which dates from 1841 and is used in the 1st edition of 

 the List. 



Genus DIOMEDEA. Type by subsequent designation of 

 Gray (List Gen. Bds. 1st ed. 1840, p. 78) : V. exulans 

 Linn. 



Genus COLTMBUS. Type by subsequent designation of 

 Gray (Cat. Gen. Subgen. Bds. 1855, p. 125) : C. arc- 

 tinis Linn. The question of the type of this Linnean 

 genus is a serious one, and has caused a considerable 



