Sucker (anatomy)

Definition and stakes

Max Braun,  The Animal Parasites of Man

“ The Female—filiform, about 20 mm. in length, pointed at each end, and measuring 0·25 mm. in diameter in the middle. Their colour varies according to the condition of the contents of the intestine. (Posteriorly they are dark brown or blackish.) The cuticle is smooth except in the sucker, where there are very delicate spines, and at the posterior end, where there are other larger spines. The oral sucker is a little larger than the pedunculated ventral sucker (0·07 and 0·059 mm. respectively) . The anterior part of the body, 0·2 to 0·3 mm. in length; the œsophagus is as in the male. ”
Source: Gutenberg

Max Braun,  The Animal Parasites of Man

“ The body is thickly covered with nail-shaped spines about 10 μ long. Oral sucker 77 μ, to 85 μ in diameter. Ventral sucker characteristic and peculiar 0·12 to 0·14 mm. by 0·08 to 1 mm. It is a sac-like organ placed deeply in the body, but does not open as in other flukes on the ventral surface. Testes elliptical, not quite symmetrically placed at the hind end of the body. Vesicula seminalis retort-shaped, situated transversely, internal to the ventral sucker. ”
Source: Gutenberg

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