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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Metamorphic remodeling of morphology and the body cavity in Phoronopsis harmeri (Lophotrochozoa, Phoronida): the evolution of the phoronid body plan and life cycle

Fig. 3

First steps of metamorphosis of Phoronopsis harmeri; photographs of live animals. In all photographs, the larval preoral lobe with apical organ is to the top. a Competent larva. b First contraction of larval muscles. c Strong contraction of larval muscles: larval length decreases in twice. d Start of eversion of the matasomal sac. e The metasomal sac is everted in half. f The metasomal sac is completely everted. Abbreviations: bm – blood mass; ms – metasomal sac; pl – preoral lobe; st – stomach; tt – telotroch

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BMC Ecology and Evolution

ISSN: 2730-7182

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