64 THE AUSTRAL AVIAN RECORD [Vol. II. 



diagnosis, at others a detailed account — in the Bull. 

 Sci. Nat., sometime previous to the issue of the plates. 

 Some others were included in Lesson's Manuel d'Ornith- 

 ologie, wliich appeared prior to the plates dealing with 

 them. In every case sufficient data is now available to 

 fix the exact date of every name commonly ascribed to 

 the Voy. la " Coquille," and exactly settle all matters 

 regarding priority. 



In the Table des Planches, pubhshed after the text to 

 the plates had been completed, the references to the 

 text being given, the names are sometimes different 

 from those that appear on the plates, and the authorities 

 are given. As example, Lanius karu N. of the plates 

 (No. 12) appears as Ceblepyris karu Lesson, and for 

 pi. 17 {Muscicapa pomarea Less.) the alternative 

 Muscicapa maupitiensis Garnot is added. 



In no case however does the specific-name differ, 

 though I see that in the Bull. Sci. Nat. Ferussac, Vol. X., 

 p. 291, 1827, Lesson and Garnot described Corvus tristis 

 (Atlas Zool., pi. 24). The plate appeared with the 

 name Corvus senex, and this name is used in the text 

 of the "Coquille." In the Cat. Birds Brit. Mus., this 

 species appears as a monotypic generic form, under 

 the name Gymnocorax senex. I do not see that Corvus 

 tristis is preoccupied, so that the species-name should 

 be tristis. It is also necessary to revert to the genus 

 Gymnocorvus, as Gymnocorax is simply a classical emen- 

 dation. The species should therefore be known as 

 Gymnocorvus tristis. 



