Taking a mini break in Weymouth in the winter was something of a gamble, particularly with the dismal weather we’ve been experiencing this year. I was reasonably lucky except on the Wednesday, when gale force winds saw huge waves rolling in along Weymouth Beach but, as the heaviest rain held off till the afternoon, I managed a quick stomp around Lodmoor, then walked back along the top of the beach to see what the weather had blown in.

First up were several of these egg cases, which have been confirmed as belonging to the Common whelk (Buccinum undatum) though, as the national recorder pointed out on IRecord, the vacant spawn balls float and get blown long distances from where they were laid, so their presence is not evidence of where the Common whelks live.

Next, I spotted this pale-coloured egg case, which I believe is from a catshark, though I’m not sure if it was produced by a Nursehound (Scyliorhinus stellaris) or a Small-spotted catshark (Scyliorhinus canicula). Unfortunately, I didn’t measure the egg case, and it seems the case colour can be variable. The Dorset Wildlife Trust website entry for Nursehound states that ‘Nursehounds [and presumably other catsharks] lay their eggs amongst seaweed. The egg cases have curly tendrils that wrap around the seaweed to prevent the egg case from floating away’.

This last find is proving the most difficult to identify, as there are many similar-looking egg cases – the Shark Trust has an excellent downloadable chart but, once again, I don’t know the exact size of the case. The egg case seems to have been produced by a species of ray and, looking at which rays are found in the waters off the Dorset coast, it may be a Spotted ray egg case (Raja montagui), but that is pure speculation. Suffice to say, I have learned my lesson when it comes to trying to identify beachcombing finds – I will definitely be measuring what I find, and taking more detailed photos as well.