Note 280 — ON PARASITES IN GENERAL. (continued 8)

Bothridia or “phyllidia” are outgrowths from the scolex. They are concave and extremely mobile. By some authors the term “phyllidium” is used for the outgrowth, and the term “bothridium” is restricted to the muscular cup. Bothria, on the other hand, are grooves more or less wide, the musculature of which is only slightly developed and is not separated off internally from the parenchyma. Acetabula, or suckers in the usual sense, are hemispherical cups, without lips and with musculature separated internally from the parenchyma.