Ciona tadpole stage larva stained with Alexa453-phalloidin, showing outline of notochord cells.

	Dorsal view of a juvenile Chaetopterus variopedatus, a polychaete worm.

Localization of Chv-Hox1 transcripts in an early trochophore larva of Chaetopterus variopedatus.

	Distalless protein localization in the C. variopedatus trochophore CNS. (Antibody provided by G. Boekhoff-Falk and S. Carroll.)