Ragworm (Hediste diversicolor), Whitburn beach, Sunderland

Ragworm (Hediste diversicolor), Whitburn beach, Sunderland

Observation - Ragworm (Hediste diversicolor), Whitburn beach, Sunderland - UK and Ireland. Description: Large polychaete worm observed in burrow underneath stone within mid-shore intertidal zone. We have tried in the past to take photos in-situ but they are so fast and escape down the burrow. When initially observed individuals have an iridescent ‘silver’ g

Large polychaete worm observed in burrow underneath stone within mid-shore intertidal zone. We have tried in the past to take photos in-situ but they are so fast and escape down the burrow. When initially observed individuals have an iridescent ‘silver’ gleam which is likely caused by mucus covering within burrow. We managed to carefully remove this individual from burrow which can be seen at the top of Photo 3. When removed, we would estimate that this individual is approx 14cm in length (10 pence size reference); the underside of specimen can be seen in Photos 2-5. The upper side appears to show prominent dorsal blood vessel (Photos 5,6). Difficult to take head shots but our best are photos 8,9,10 and underside Photo 2. This individual wasn’t particularly quick but surprising how easy it was for this individual to burrow into coarse gravel, shell fragment substrate (photo 13). When we replaced this individual into its burrow it quickly disappeared. Would welcome advice and support