Figure 6 from: Hirose M, Fukiage R, Katoh T, Kajihara H (2014) Description and molecular phylogeny of a new species of Phoronis (Phoronida) from Japan, with a redescription of topotypes of P. ijimai Oka, 1897. ZooKeys 398: 1-31. https://doi.org/10.3897/zookeys.398.5176

Figure 6 - Phoronis ijimai. A NSMT-Te 886, transverse section through the posterior part of the body, showing four mesenteries and the position of the giant nerve fibers B NSMT-Te 885, enlargement showing longitudinal muscles of the bushy type C NSMT-Te 885, enlargement of the left giant nerve fiber situated at the base of the left lateral mesentery. Abbreviations: am anal mesentery; i intestine; llm left lateral mesentery; lnf left giant nerve fiber; m longitudinal muscle; om oral mesentery; rlm right lateral mesentery; rnf right giant nerve fiber; s stomach.