Nemertea S10 - ZOO 115 Invertebrate Zoology Nemertea Phylum...

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ZOO 115 Invertebrate Zoology Nemertea
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Phylum Nemertea Common name: ribbon or boot-lace worms ~ 900 species. Mostly marine infauna or epifauna. A few freshwater species and a few terrestrial species. Mostly predators www-biol.paisley.ac.uk/courses/Tatner/biomedia/jpegs
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Phylum Nemertea - Anatomy Most about 20 cm but Lineus longissimus has been recorded at 54 m! Have a mouth and true anus Presence of Coelom (Rhynchocoel and vessels) www.dec.state.ny.us/website/dow/stream/ www.call-of-the-sea.com
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biodidac.bio.uottawa.ca/ftp/BIODIDAC/ZOO/NE MERTEA/DIAGBW/ Phylum Nemertea – Head region They have excellent sensory organs to sense prey biodidac.bio.uottawa.ca/ftp/BIODIDAC/ZOO/NE MERTEA/DIAGBW/ Ocellus (eye spot) Brain Cerebral organ (chemosensory and osmoregulation) Cephalic groove (chemosensory) Lateral nerve cords
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biodidac.bio.uottawa.ca/ftp/BIODIDAC/ZOO/NE MERTEA/DIAGBW/ Phylum Nemertea - Body They move across the substrate by secreting slime and using cilia Densely ciliated epidermis Cephalic slime glands in head region
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Phylum Nemertea - Body Use peristalsis for burrowing Circular muscles
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Nemertea S10 - ZOO 115 Invertebrate Zoology Nemertea Phylum...

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