( in 



clatorial purposes names proposed generically luul subgenerically are of eiiiuil 

 value; therefore Nasiterna mnst be replaced by Micropsitta. 

 Page 47 : Genus C'LXXXV. Cacatois Domeril, Zool. Anah/tique p. 50 (1800) 

 replaces Cucatua Vicillot. 

 Genus ( 'LXXXVII. Lqitulophm Swainson, Xool. IlbiMr. Ilud Ser, i)l. 112 

 (18:i2-3) 

 rei)lace8 Calopsitta Lesson, Illustr. Zool. pi. xlix. 1835. 

 In the Cat. Birds xx. p. 135, Calopsitta is jjreferred as of date May 183'» ; 

 the month of Swainson's genus not being given. 



A casual examination of Lesson's work showed that Mai 1832 was only the 

 date of the text to i)ls. xlix. and 1., and had nothing to do with publication. 

 The text to pis. xlv. and xlvi. is dated Juillet ls33. 



Upon reference to the Bibliotheque Frauraise I obtained the following dates. 

 The prospectus, noticed February 4, 1832, gave the information that the volume 

 would consist of 20 livrs., eacli livraison to contain 3 pis. with text, not paged, and 

 the first No. to be issued March 1, and thence monthly. 

 The dates show that this was not carried out : 



ilates. In 8" de % sheet. Julv 14, 1832. 

 „ i „ Sept. 1,1832. 

 „ I „ Oct. 13, 1832. 

 „ J „ Nov. 3,1832. 

 „ I „ Dec.1,1832. 

 „ f „ Feb. 23, 1833. 

 „ . i „ April 13, 1833. 

 „ i „ Aug. 10, 1833. 

 „ f „ Aug. 24, 1833. 

 „ J „ Oct. 19, 1833. 

 „ i „ Dec. 21, 1833. 

 „ 5 „ March 22, 1834. 

 „ i „ May IT, 1834. 

 „ f „ Aug. 2, 1834. 

 „ 3 „ .Jan. 17, 1835. 



No further notices appear in this journal, but in the Comptes Rendiis, December 

 1835, p. 517, livr. 18 and 20 are noticed. 



As corroboratory evidence it may be noted that the text to pi. Ix. contains a 

 reference to Journal cle I'lnstitut, No. 72, 27 Septembre, 1834. 



These dates, therefore, place J;he publication of Calopsitta in 1835. 



The 1st Series of Swainson's Zool. //to^r. were published monthly, and tlie 

 2nd Series was commenced on the same plan. They were announced on February 29, 

 1829, to appear monthly. In the Mag. Nat. Hist. vol. iv. p. 272, June 1831, 

 Swaiuson himself wrote, "In each regular number (12 out of 13) there are five 

 plates,"' and in the same volume, p. 555, wrote in a letter dated September 1831, 

 " The 17th and istli came out bnt a month ago." He there threatened to publish 

 only two more parts. Apparently this was done, and constitutes the first two 

 volumes. Then under pressure a third volume was undertaken some time later, 

 and it was completed early in 1833, the preface being dated March 4, 1833. I have 

 been so far unable to fix tlie absolute date of the parts comprising this last volume, 

 but there can be no doubt that the date given on the title-page, 1832-3, is correct. 



