157 
1921 .] Recently published Ornithological Works . 
We have found descriptions of about seven new species and 
subspecies in the text, and it would be a great convenience 
to workers if a list of these were printed in the introduction. 
They are as follows :—Coccyzus minor caymanensis Cayman 
Ts.,W.I., Nystatus maculatus nuchalis Ceara, Brazil, Soroplex 
campestris cearce Ceara, Brazil, Chrysoptilus melanochlorus 
jure Ceara, Brazil, C. punctigula notata Colombia, Celeus 
elegans approximans Brazil, Crocomorphus jlavus peruvianus 
N. Peru. A coloured plate of the three subspecies of Celeus 
elegans forms a frontispiece to the volume. 
Cory on the genus Rhynchocyclus. 
[The relationships and geographical distribution of the species and 
races belonging to the genus Rhynchocyclus. By C. B. Cory. Proc. Biol. 
Soc. Washington, vol. 32, 1919, pp. 217-224.] 
A useful revision of this complicated and extensive genus 
of South American Tyrant-birds. No new forms are 
described, twenty are included in the list. 
Hellmayr' 9 s recent papers. 
1. Neue Vogel aus dem tropischen Amerika. Yon E. C. Hellmayr und 
Josef Graf von Seilern. Verhandl. Orn. Ges. Bayern, xii. 1914, 
pp. 87-92. 
2. Weitere neue Formen aus Westindien und Venezuela. Id., ibid. 
pp. 201-205. 
3. Ueber einen neuen Kernbeisser aus Venezuela. Id., ibid. pp. 160-161. 
4. Ein kleiner Beitrag zur Ornithologie des Staates Espirito Santo, 
Sudostbrasilien. Von C. E. Hellmayr. Ibid. pp. 119-159. 
5. Neue Formen aus dem neotropischen Gebiet. Id., ibid. pp. 206-214. 
6. Beschreibung von sechs neuen neotropischen Vogelformen, nebst 
einer Bemerkung liber Ampelion cinctus (Tscli.). Id., ibid. xiii. 
1917, pp. 106-119. 
7. Miscellanea Ornithologica, II., III., IV. Id., ibid. xiii. 1917 & 1918, 
pp. 188-200, 302-317 : xiv. 1919, pp. 126-133. 
8. Bibliographisches und Kritisehes liber R. Scliomburgk’s Vogel von 
Britisch-Guiana. Id., ibid. xiv. 1920, pp. 270-274. 
9. Drei Beitrage zur Nomenklatur der Vogel Furopas. Id., ibid. xiii. 
1917, pp. 87-104. 
10. Zur Nomenklatur zweier palaarktisclien Krahen. Id., ibid. xiii. 
1917, pp. 181-187. 
