Recently published Ornithological Works. 81 



the Grand Cape Mount District, some forty-five miles west 

 of Monrovia. In this splendid but unhealthy district, Mr. 

 Sala succumbed to the noxious climate in June 1881, and a 

 year later Mr. Biittikofer was obliged, on account of broken 

 health, to return to Europe. 



The fauna of Liberia, according to Mr. Biittikofer's inves- 

 tigations, has more similarity to that of Sierra Leone than to 

 that of the Gold Coast. Psittacus timneh is the Liberian 

 representative of Ps. erithacus, and Agapornis swinderniana 

 of A. puUaria. 



Mr. Biittikofer^s list of Liberian birds comprehends 162 

 species, concerning which many excellent notes are given. 

 Columba unicincta, Cassin, is figured. A map of the district 

 explored is appended, as should be done in all articles on the 

 animals of a particular locality. Altogether we consider 

 this paper a model of what such a memoir ought to be. 



6. Biittikofer on Glareola megapoda. 



[A Supplementary Note on Glareola megapoda. By J. Biittikofer. 

 Notes Leyden Mus. vii. p. 256.] 



A note received from Dr. Guillemard tends to confirm the 

 distinctness of this species, which was called by Schlegel 

 Glareola nuchalis liberia. 



7. Cazin on Plotus melanogaster. 



[Note sur la Structure de I'estomac du Plotus melanogaster. Par M. M. 

 Cazin. Ann. d. Sci. Nat. xviii. art. 3.] 



The author, in a brief note, records the structure of the 

 stomach in Plotus melanogaster. His account is confirmatory 

 of that of the late W. A. Forbes, who has described this 

 species (P. Z. S. 1882, p. 208), and whose memoir has ap- 

 parently escaped the attention of M. Cazin. 



8. Dixon on Evolution without Natural Selection. 



[Evolution without Natural Selection ; or, the Segregation of Species 

 without the Aid of the Darwinian Hypothesis. By Charles Dixon. 

 London: 1885. 12mo. 80 pp.] 



Although Mr. Dixon claims, in his little volume, not to have 



SER. V. VOL. IV. G 



