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

Abstract

Polystoma okomuensis is described as a new species of the Polystomatidae parasitic in the urinary bladder of Boulenger's striped frog Phlyctimantis boulengeri in 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 from Phlyctimantis. It is distinguished from other African Polystoma species 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 boulengeri was 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.

Nematode Parasites of Anurans from Three Cocoa Farms in Ondo State, Nigeria

“…Seven toads from genus Sclerophrys and thirtyone frogs belonging to 4 genera, Hemisus, Ptychadena, Rana and Xenopus were examined out of the several seen for conservation reasons. The prevalence of infection in the observed species when compared to earlier reports in tropical Nigeria [20,23], showed that the frogs in this study had low worm burden. Previous studies from Nigeria also recorded the presence of cestodes and trematodes but only nematodes were encountered in this study.…”

“…Paracosmocerca mucronata was gotten from the intestine of the only Sclerophrys pentoni encountered in the study, it was reported as a parasite of Xenopus muelleri [20], this is the second time this parasite will be reported in another part of the Country. Chenospirura asturi was recovered from Sclerophrys maculata in Iwoye farm, it was reported as a parasite of water Birds [36].…”

“…Cosmocerca ornata recovered from the gut of male Hemisus memoratus from the Idanre farm was also reported in Senegal from Petropedetes natator [31], in Nigeria from Xenopus spp [17], in South Africa from the native South African frogs [32], in Sudan from Hoplobatrachus occipitalis [33], and Sclerophrys regularis in Egypt, Zambia and Uganda [34,35]. It was also reported in Nigeria from Sclerophrys regularis, D. occipitalis, and Hemisus memoratus [20,23].…”

“…Some reports had been written about the parasites of Amphibians in Nigeria [15,16,17,18,19,20,21,22,23,24]. But not as extensive as in some parts of the world.…”

Parasitic infections of anurans from a freshwater creek community in Delta State, Niger Delta of Nigeria

“…Investigations of the parasites of amphibians in Nigeria have mostly been undertaken in the forest and savannah biotopes of the country (Thurston, 1967(Thurston, , 1970Avery, 1971;Aisien and Du Preez, 2009;Aisien et al, 2001Aisien et al, , 2003Aisien et al, , 2004aAisien et al, , 2011Aisien et al, , 2015Aisien, 2012, 2015;Imasuen et al, 2012a). Investigations have also been carried out on pipid anurans (Hymenochirus curtipes and Xenopus tropicalis) obtained from the Lagos (coastal) area of the country Tinsley, 1995, 1998a, b).…”