240 Dr. E. Lonnberg on 



fore confident that, when the attention of ornithologists has 

 been drawn to Thunberg's name Tapera it will be generally 

 accepted. 



in the year 1821 Tim n berg described, in ' Kgl. Vetenskaps- 

 Akademiens Handlingar' (Stockholm, 1821), a bird which he 

 named Brachyurus gularis. The type-specimen is still in 

 this Museum, and is the same as Conopophaga melanops 

 (Vieill.*). (For other synonyms see Cat. B. Brit. Mus. xv. 

 p. 334.) 



In this case Thunberg's specific name is merely a synonym, 

 as it is antedated by the name given by Vieillot. 



In the year 1820 Thunberg contributed a paper, entitled 

 " Piprae novas species descriptse," to the ' Memoires de 

 PAcademie Imperiale des Sciences de St. Petersbourg/ 

 t. viii. This was not, however, printed until 1822. In 

 it he describes as new thirteen species of South-American 

 birds, all of which he refers to the genus Pipra. The 

 type-specimens of the majority are still in this Museum, 

 and a revision of them shews the following facts : — 



1. Pipra caudata Thunberg, 1822,= Pipra caudata Shaw, 

 1794. The accepted name is Chiroxiphia caudata (Shaw). 

 (For. other synonyms see Cat. B. Brit. Mus. xiv. p. 310.) 



2. Pipra forficata Thunberg, 1822, = P tubal ura fiavi- 

 rostris Vieillot, 1816. The latter is the correct name. (For 

 other synonyms see Cat. B. Brit. Mus. xiv. p. 372.) 



3. Pipra lineata Thunberg, 1822, = Pipra regulus Hahn 

 & Kiister, 1821. The correct name is Macharopterus regulus 

 (Halm & Kiister). (For other synonyms see Cat. B. Brit. 

 Mus. xiv. p. 304.) 



In this case Thunberg's name has been duly recognised 

 among the synonyms in literature. Unfortunately it was 

 not published until 1822, although bestowed in 1820, and 

 through this delay the specific name "regulus" obtained 

 priority. 



* Nouv. Diet. d'Hist. Nat. 1816-19. Platijrhynchus melanops. 



