Additional file 1: of Metamorphic remodeling of morphology and the body cavity in Phoronopsis harmeri (Lophotrochozoa, Phoronida): the evolution of the phoronid body plan and life cycle

Real-time video of the typical 4-h-old juvenile of Phoronopsis harmeri . The ampulla is quite flexible and can repeatedly increase and decrease in diameter. In the middle part of the body, the ventral blood vessel, which is filled with numerous red erythrocytes, is visible. (AVI 8216 kb)