Published online by Cambridge University Press: 15 May 2009
In the light of the controversy which is beginning to be waged in connection with Schaudinn's researches into the life-history of Halteridium noctuae, and especially in view of the papers by Prof. Ross which have been appearing in this Journal, the accompanying illustrations are likely to be of interest. They represent forms of parasite which I have found in the alimentary tract of the flea, Pulex cleopatrae Roths. and possibly other species, when searching for a cycle of development for Haemogregarina balfouri Laveran in that insect which, along with mites, infests the Sudan jerboa (Jaculus gordoni). The illustrations were prepared by Mr Richard Muir from drawings which I made in Khartoum.