Madapolystoma

Du, Louis H., Raharivololoniaina, Liliane, Verneau, Olivier & Vences, Miguel, 2010, A new genus of polystomatid parasitic flatworm (Monogenea: Polystomatidae) without free-swimming life stage from the Malagasy poison frogs, Zootaxa 2722, pp. 54-68 : 57

Madapolystoma n. g.

Generic diagnosis: Polystomatinae: Small ovoid worm with pyriform body. Haptor with three pairs of suckers, two hamuli and 16 marginal hooklets placed as for other known polystomes (hooklets 1 & 2 situated between hamuli, hooklets 3 – 5 at the base of the haptoral suckers and hooklets 6–8 posterior between the third pair of suckers. Mouth subterminal, surrounded by false sucker. Pharynx medium in size and muscular. Gut bifurcate; intestinal caeca with few diverticula confluent in the haptoral region, no prehaptoral anastomoses. Genito-intestinal canal present. Testis single, small, post-ovarian, intercaecal and positioned posteriorly in the body. Vas deferens extending antero-medially to genital bulb armed with 8 genital spines. Ovary small, oval, median and placed in middle of body. Uterus tubular extending pre and post genital region and fill most of body. Two vaginae, anterolateral to ovary; left and right vaginal ducts. Advanced intra-uterine development of larvae with hamuli and up to two pairs of suckers in utero. Adult parasitic in urinary bladder. Type-species: Madapolystoma biritika n. g. & n. sp.