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There was a very large bank of these, mid way up in the intertidal zone, individual tubes quite brittle, but the mass of them quite substantial. Some tubes were 10cm long, others perhaps longer but hidden in the bank of them.
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These sand tube polychaetes tended to be just below the blue tube worms on the rocks. The last photo is a blurry image of one feeding in the surf.
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These sand tube polychaetes tended to be just below the blue tube worms on the rocks. The last photo is a blurry image of one feeding in the surf.
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These sand tube polychaetes tended to be just below the blue tube worms on the rocks. The last photo is a blurry image of one feeding in the surf.
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These sand tube polychaetes tended to be just below the blue tube worms on the rocks. The last photo is a blurry image of one feeding in the surf.
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In the Cape Mondego Natural Monument.
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Amongst the rocks. Vagueira beach, Portugal.
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Amongst the rocks. Vagueira beach, Portugal.
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Close-up
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Reef
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Forming reefs attached to rocks, at Aguda beach, Northern coast of Portugal.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Figure 8; Idanthyrsus sp. A) Worm inside its tube, B) entire body, C) operculum, D) abdominal uncinus, E) nuchal hook, F) outer opercular paleae, G) radiolar tip of outer opercular palea, H) inner opercular palea. Scale bars: A, C) 2 mm, B) 3 mm, D, G–H) 1000x magnification, E–F) 400x magnification.
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Figure 7; Idanthyrsus mexicanus Kirtley, 1994. A) Entire body, dorso-lateral view, B) operculum, dorsal view, C) nuchal hook, D) abdominal uncini, lateral view, E) base of outer opercular palea, F) mid-region of a outer opercular paleae, G) near distal end of outer opercular palea, H–J) inner opercular paleae. Scale bars: A) 3 mm, B) 1.5 mm, C, J) 400x magnification, D–I) 1000x magnification.
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