Since Cobbold‘s admirable work on the parasites of the India elephant in 1882, our knowledge of the Helminths harbour (I by this species of elephant has been considerably enlargc by Lieut.-Col. C. Lsne, Railliet & Henry, and others. Litt I advance has been made regarding the parasites of the African elephant. The new species recorded here, with one exception, are parasites of the latter animal. The material upon which this study is based was collected by Prof. Leiper in Uganda as far back as 1909 from two elephants shot by him. In addition, specimens received from Dr. JJ Simpson, West Africa, the Raymond Laboratories in India, and from Lieut.-Col. C. Lme, the latter’s representing most of his typespecies from the Indian elephant, were available for study and comparison. Leiperenia grclebi was collected by Prof. Leiper from an Indian elephant that died in the London Zoological Society’s Gardens.

Besides all this unique material, Prof. Leiper placed at my disposal his extremely valuable notes on the type-species in the Vienna and Berlin Natural History Museums. These proved to be of great tissistnnce with regard to Belascaris Zonchoptera Diesing, and Murshidia linstowi, sp. n. I feel deeply indebted to Prof. Leiper for his unrestricted generosity and ever-ready help both HS regards material and information, without either of which this work could not have been done.