Note on a Schistosoma Cercaria with Four Pairs of Flame Cells in the Body

Abstract

1. A brief account is given of a schistosoma cercaria obtained from Bulinus truncatus possessing four pairs of flame cells in the body.A monkey, Cercopithecus sebaeus, was experimentally infected with this cercaria, adult male and female S. haematobium being formed in the mesenteric veins, and terminal spined ova in the sub-mucosa of the colon.The view is expressed that this cercaria was probably an aberrant form of the cercaria of S. haematobium.