Morphology

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Morphology

External anatomy: The background color varies from brown to black with numerous compacted yellow dots over the entire dorsal surface. Numerous transverse pink streaks outlined by black variable in shape. The margin is black with white dots. The ventral side is pink with a black marginal band. The pseudotentacles are formed by the folds of the anterior margin and are pointed ear-like with few pseudotentacular eyes. Two elongated clusters of cerebral eyes close to each other as one single cluster of about 100 eyespots. A small and narrow pharynx with simple folds. Two male pores closed together and the sucker is well separated from gonopores.
Internal anatomy: The male complex consists of two male gonopores, each one leading to an independent male system. Each male systems consists of unbranched vas deferens, a round seminal vesicle connected to a long and coiled ejaculatory duct, a large spherical prostatic vesicle and an extremely long and narrow stylet housed in a shallow and wide antrum. There is a single female system with a shallow antrum and the vagina is surrounded by the cement glands.

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© Bolanos, Marcela

Source: A catalogue of tropical polyclad flatworms

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