No. 6.] THE AUSTRAL AVIAN RECORD 157 



As it is accepted that the Fauna Bor. Am. was not 

 published until February 1832, while the Isis, col. 515 was in 

 heft 5, the May 1831 number, the latter name has priority. 



Again, in Die Vogel der Palaarktischen Fauna, hefte xiii. 

 and XIV., just published, on p. 1738, Larus gelastes Keys, and 

 Bias, is used, with the following synonymy : — 



Larus gelastes Keyserling and Blasius, Wirbelt Eur., 

 p. xcv., 242, 1840. 



Larus leucocephalus, id., ih. 



Larus genei Breme, Rev. Zool., annee 1839, p. 321, 1840. 



Larus tenuirostris Temminck, Man. d'Orn., 2 ed. , tv., 



p. 478, 1840. 

 Xema lamhruschinii Bonaparte, Icpnogr. Faun. Ital., 



fol. 135, 135*, 1840. 



Such a chronology needs revision, as the exact dates of 

 pubhcation are generally now ascertainable with a Uttle 

 trouble, many of them having been published recently. 



Thus we know that the fourth volume of Temminck's 

 Manuel was acknowledged in the B.F. for Dec. 7, 1839, and 

 moreover reviewed in the Revue Zool., 1839, for December, 

 and Larus tenuirostris is mentioned in that review. Larus 

 genei was published in the November number of the same 

 Revue, and Hartert's contention that the Revue was published 

 yearly is easily disproved by the acknowledgment of the 

 receipt of the numbers as they appeared in the Comptes 

 Rendus Acad. Sci. Paris, where in the Bulletin bibliographique 

 of the seance of Dec. 2, 1839, the part (No. 11) containing 

 Larus genei is recorded. As the preface date of Keyserling 

 and Blasius's work is October 1839, and the only review so 

 far noted is April 1840, and also the title-page is dated 1840, 

 priority seems to belong to L. genei. 



It is possible also that Bonaparte's name appeared in 1839 

 as it is quoted by Durazzo in the Uccelli Liguri, published 

 in 1840. 



In the same heft Hartert, p. 1732, recognises Larus canus 

 major Midd. 1853, based on L. canus var. major, but on p. 1723 

 had cited Laroides major Brehm 1831 as a synonym of 



