The muscular system of Pachycerianthus fimbriatus

Abstract

The movement of Pachycerianthus fimbriatus in response to food, and electrical and mechanical stimuli is described. Animals were examined in their tubes, in glass dishes, in glass tubes, on a beaker of sand, or using preparations of different portions of the column. The observed movement was correlated with anatomical data obtained principally from histological sections. Possible conducting pathways controlling the movement are discussed.