lateral line
From ZooTerms (Dictionary of Invertebrate Zoology)
Annelida: Oligochaeta) In aquatic forms, the line formed by the nuclei of the fibers of the circular muscles.
lateral line: 1. (
2. (Arthropoda: Insecta) In eruciform Trichoptera, finely haired, longitudinal cuticular fold on each side of the abdomen. See also supraspiracular line.
3. (NEMATA) In some nematodes, lateral, longitudinal cuticular incisures beneath which the lateral nuclei of the hypodermis are found; lateral field lines. See also lateral ridge.