752 Recently published Ornithological Works. 
together with measurements; while the conclusion arrived at 
by Professor Lonnberg is that the bones are those of Anser 
negledus Sushkin, a form which differs but little from Anser 
brachyrhynchus. 
96. Muir and Wershaw on a new Pitta. 
[A new Bird from the Island of Ceram, Moluccas. By F. Muir and 
J. C. Wershaw. Proc. Biol. Soc. Washington, xxiii. p. 65.] 
Pitta piroensis, sp. nov., from Ceram, is nearly allied to 
P. rubrinucha of Bourou. 
97. Nehrkorn' 1 s Catalogue of Eggs. 
[Katalog der Eiersammlung, nebst Beschreibungen der aussereuro- 
paischen Eier. Yon Adolph Nehrkorn. Zweite Aufl. Hit 4 Eiertafel n 
infarbigem Steindruck. Berlin : Friedlander, 1900. 1 vol., 8vo, 449 pp.] 
This is a second edition of the Catalogue of the great 
collection of birds' eggs formed bv Herr Adolph Nehrkorn 
of Riddagshausen, near Brunswick, and now in the Museum 
of Berlin (or on its way there), the owner having liberally 
presented it to that Institution. It is without doubt one of 
the largest and most complete collections of these beautiful 
objects ever made, no trouble or expense having been spared 
in amassing it. The Catalogue follows Sharpe’s ‘ Hand-list ? 
of Birds in arrangement and nomenclature. It enumerates 
the names of 5440 species, the eggs of which are represented 
in the Collection. Short characters are given of the eggs of 
npn-European species, and the patria is stated, but un¬ 
fortunately no authorities for the identification are added. 
Many rarities are represented in the series, such as examples 
of the eggs of eleven species of Galapagoan Finches, of six 
species of Paradise-birds, of Calyptomena viridis, Nasiterna 
pusio , and Chung a burmeisteri. There is an excellent alpha¬ 
betical index, and four good coloured plates of thirty-seven 
special rarities. 
98. Nelson on a neiv Mexican Thrush. 
[A new Thrush from Mexico. By j$. W. Nelson. Proc. Biol. Soc. 
Washington, xxii. p. 49.] 
A new subspecies of Catharus , from Tamaulipas, is named 
C. mexicanus smithi. 
