(from Coe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318)
Serial sections of so gigantic a worm would obviously be too cumbersome to study as a series, and I have therefore not investigated the details of its internal anatomy. A section through esophageal region reveals an extremely massive outer longitudinal muscular layer is but 3/4 mm thick, and the internal longitudinal muscles much thinner. Lateral nerve cords are each more than half a millimeter in diameter. Intestinal region muscular layers are all comparatively thin; the median lumen of intestinal canal in middle portions of body measures 3 by 4 mm, from which the intestinal lobes extend laterally to a depth of 15 mm on each side. So great measurements as these have never before been described for any species of nemertean.
No one has provided updates yet.