On two small Collections of Butterflies madc by Mr. Richard Crawshay during 1898 in British East Africa
Published in Proceedings of The Zoological Society of London, in 1899, in volume 1899, pages 417-427
Date published:1899
Published in Proceedings of The Zoological Society of London, in 1899, in volume 1899, pages 417-427
Date published:1899