libus uitide purpureo-cyaneis ; cauda omuino viridi- 

 nigra ; rostro nigro. Long, tota circa 4' 5, alee 2-7 o, 

 caudcC rectr. med. I'S, i-ectr. lat. IvS. 

 ? mari simili.?, gutturis plumis ad basin albis plaga terminali 

 magna viridi. 



Hab. Leimebamba, E. Peru, July 1894 (0. T. Baron). 



Ohs. E. luciani similis, sed uropygio et abdomine medio 

 cyanescentioribuS; cauda multo minus furcata facile distin- 

 guenda. 



!Mr. Erx?t Hartert stated tbat the names of the two 

 Nudfrayce Lad been reversed in the note published in the last 

 number of the ''Bulletin/ and that to avoid further mis- 

 understanding he vrished his full statement to be inserted 

 verbatim : — 



" Long ago C. L. Brehm had separated the Nucifraga 

 caryocatactes of Linnaeus into two forms, which he called 

 N. brachyrhynchus and N. macrorhynchus, his N. brachy- 

 rhynchuSy howevei', being the typical N. caryocatactes of 

 Linnaius. British ornithologists generally, almost with the 

 sole exception of Seebohm, who had acknowledged the two 

 formS; had never believed in them. Prof. Newton, for ex- 

 ample (Diet. B. p. 647). had declared that, ' as in the case of 

 the Huia, this was now supposed'"to depend on the sex,^ a 

 statement which was certainly not right. Dr. Sharpe (Brit. 

 B. i. p. 17) had said he had ' never been able to appreciate 

 the supposed differences.'' Mr. Hartert had frequently met 

 with the thick-billed form in North-east Prussia, where he 

 found their nests and eggs, and had collected a large series 

 and they were all thick-billed. This was N. caryocatactes, 

 L. The same was the case with birds from- Scandinavia, the 

 Alps, and the Hungarian mountains. All these birds were 

 resident throughout the year and did not wander, while the 

 thin-billed form, N. macrorhynchus, C. L. Brehm, which 

 alone inhabited Siberia, frequently wandered in a south- 

 westerly direction, and sometimes occurred all over Germany 

 in great numbers. The differences of the beaks alone were 

 sufficient to separate the two forms, but there were some 

 other differences between them.''^ 



