Polystoma okomuensisn. sp. (Monogenea: Polystomatidae) from Boulenger's striped frog,Phlyctimantis boulengeri(Perret, 1986) in Nigeria

Abstract

AbstractPolystoma okomuensisis described as a new species of the Polystomatidae parasitic in the urinary bladder of Boulenger's striped frogPhlyctimantis boulengeriin the Okomu National Park, Edo State, Nigeria. Although other African polystomes have been reported from Nigeria, this is the first to be described from the country and the first fromPhlyctimantis. It is distinguished from other AfricanPolystomaspecies by a combination of characters, including the body size, size and shape of the hamuli, size and shape of marginal hooklets and intestinal location.Phlyctimantis boulengeriwas found to be infected in two of four seasonal lakes where specimens were caught with prevalences and mean intensities ranging from 14.3 to 22% and 1.0 to 1.5, respectively. Of the total number of 45 frogs examined, the prevalence was 15.6% and mean intensity 1.4.