Fig. 3
From: Hox gene expression during development of the phoronid Phoronopsis harmeri
Development of Phoronopsis harmeri. Blastula, 12 hpf (A, A’); gastrula, 24 hpf (B, B’); early larva, 42 hpf (C, C’); pre-tentacle larva, 56 hpf (D, D’); actinotrochae: 3 dpf (E, E’), 5 dpf (F, F’) and 7 dpf (G, G’). For each developmental stage the left panel shows embryo or larvae in dorso-ventral view and right panel (marked as’) in lateral view with ventral to the left; anterior is to the top on all panels. Scalebars 50 μm. am anterior mesoderm, ao apical organ, ar archenteron wall, bc blastocoel, bp blastopore, es esophagus, mg midgut, mo mouth opening, ms metasomal sac, oh oral hood, pd proctodeum, pm posterior mesoderm, pn protonephridium, pr protonephridial rudiment, rt tentacle rudiment, st stomach, te tentacle, tt telotroch