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Phylogeny of some lophotrochozoan worms

Phylogeny of some lophotrochozoan worms. Annelida. Platyhelminthes. Sibloglinidae. Polychaeta. Sipuncula. Nemertea. DOM or chemosynthetic bacteria. : nutrition source. non-linear (U-shaped) introvert urn cells. gut form: feeding structure: coelomic scavengers:. parapodia

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Phylogeny of some lophotrochozoan worms

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  1. Phylogeny of some lophotrochozoan worms Annelida Platyhelminthes Sibloglinidae Polychaeta Sipuncula Nemertea DOM or chemosynthetic bacteria : nutrition source non-linear (U-shaped) introvert urn cells gut form: feeding structure: coelomic scavengers: parapodia segmentation setae : appendages : body layout : chitinous structures body cavity: excretory structure: extracellular covering: blood-vascular system: coelom metanephridium gas-permeable cuticle contractile rynchocoel eversible proboscis non-contractile : fluid-filled cavity : prey capture device : blood-vascular system complete and linear digestive system: symmetry: excretory structure: tissue layers: nervous system: bilateral protonephridium triploblastic ventral nerve cords, ganglia (central nervous system)

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