Figure 1From: Myoanatomy and serotonergic nervous system of the ctenostome Hislopia malayensis: evolutionary trends in bodyplan patterning of ectoproctaPhylogenetic system of the Ctenostomata, modified after (a) Jebram (1986) and (b) Todd (2000). (a) The phylogenetic reconstruction of Jebram is mainly based on cystid and muscle differentiation. (b) The work of Todd (b) has in particular included characters of fossil ctenostomes.Back to article page