Helminth fauna of anurans from the Guinea savanna at New Bussa, Nigeria

As part of broader study on the helminth parasites of amphibians in the different bioclimatic zones of Nigeria, a study of the the helminth parasites of amphibians at New Bussa in the Guinea savanna zone of Nigeria was undertaken. Amphibian hosts examined included Bufo regularis, B. maculatus, Dicroglossus occipitalisl/Ig and Rana galamensis . The cestode lIgCylindrotaenial/Ig sp. was recovered from Bufo regularisl/Ig and B. maculatus . Monogeneans were represented by Eupolystoma alluaudil/Ig and Polystoma galamensisl/Ig and trematodes by Haematoloechus exoterorchis, H. micrurus, Mesocoelium monodil/Ig and Diplodiscus fischthalicus . Nematode parasites included Rhabdias bufonis, Amplicaecum africanum, Camallanus dimitrovi, Cosmocerca ornatal/Ig and the larvae of an ascaridoid nematode. Eupolystoma alluaudi , which has been shown to have low prevalence rates in other savanna locations, had high prevalence rates in B. regularisl/Ig (68.4%) and B. maculatusl/Ig (82.3%). A few lIgBufol/Ig specimens, which had over-dispersed infection with adult worms and the whole range of developing stages represented, confirm the internal cycle of re-infection already observed by other investigators for E. alluaudil/Ig in lIgBufol/Ig spp.