Cover illustration. The horseshoe shrimp Hutchinsoniella macracantha belongs to the ancient crustacean taxon of Cephalocarida. Its external morphology and neuroanatomy exhibit several plesiomorphic structures and patterns dating back to the ancestor of all Tetraconata. In this issue of the Journal of Morphology, Stegner and coauthors (pp. 269–294) studied the ventral nerve cord of adult Hutchinsoniella macracantha in detail, combining immunolabeling (tubulin, serotonin, RFamide, histamine) and nuclear stains with confocal laser microscopy, complemented by 3D‐reconstructions based on serial semithin sections. The cover image shows lateral 3D‐overviews of the cuticle (white in top row, semitransparent in second row), the gut (green, third row), and the ventral nerve cord (neurites and neuropil in yellow, somata in dark grey, bottom row). Different from most other crustaceans, also the limb‐less abdomen in Cephalocarida comprises segmental ganglia.