325 
1921 .] Recently published Ornithological Works . 
They contained about ] 2,000 skins, representing 250 species. 
Some of the new forms have been already described, while 
four additional ones are here introduced for the first time, 
viz. :—Cyanerpes ccerulea chocoana from Colombia, Rham- 
phocelus car bo centralis from Brazil, Spizitornis parulus 
patagonicus from Argentina, and Lepidocolaptes lacrymiger 
carabayce from S.E. Peru. Very valuable comments on 
nomenclature and geographical distribution, together with 
revisions of various groups of subspecific forms, make up the 
rest of the paper, which is one of the most important con¬ 
tributions to our knowledge of the avifauna of the eastern 
slopes of the Peruvian Andes which has appeared for some 
time. 
The second paper, which also deals solely with neotropical 
forms, contains revisions of nomenclature and synonymy. 
A note on the first record of Hehninthophila leucobronchialis 
in South America is of considerable interest, as this rare 
little Warbler is believed by Mr. Faxon and other North 
American naturalists to be a natural hybrid between 
H. pinus and H. chrysoptera. The South American example 
was obtained near Merida in Venezuela, and is now in the 
Tring Museum. 
Laubmann on Lesson s Types. 
[Kritische Untersuchungen iiber die Genotypfixierungen in Lesson’s 
‘Manuel d’Ornithologie,’ 1828. Von Dr. A. Laubmann. Arch. Natur- 
gesch. Jahrg. 85, Abt. A, 1920, pp. 137-168.] 
In this laborious but useful work Dr. Laubmann has 
carefully reviewed all the genera in Lesson’s ‘ Manuel 
d’Ornithologie,’ and has shown that in many cases Lesson, 
quite in accordance with the modern rules of Zoological 
nomenclature, fixed the types of a good many genera where 
the fixation has generally been attributed to Gray, whose 
work was published later. This paper should be carefully 
consulted by all who are interested in nomenclatural 
work. 
