Tag Archives: travel

Periwinkles

Posted on by under Macro, molluscs

Long time no post – the idea was to spend time taking photos during spring and summer and enjoy the underwater world vicariously by blogging in autumn and winter. However, something terrible happened on my only dive of 2025: my underwater housing sprung a leak! The housing was not flooded to an extent that it damaged my camera but it needed to be repaired before I could get back underwater. Unfortunately there is only one place that can do that, backscatter all the way in California, and even more unfortunately, U.S. customs decided to keep my package on a shelf for over a month. I have never seen an octopus in my decade of diving but of course people reported eight or so per dive last month so I was feeling very sorry for myself!* Anyway, I have been confined to the shoreline so far. To cope with that, I bought a weird chinese macro-wide angle lens to play with which I will post about later. I also used my ‘normal’ 60mm macro lens (sometimes with a Raynox lens attached to the front for extra magnification) and took some time to focus on periwinkles.

At the top and below a Flat Periwinkle (Littorina obtusata or maybe L. fabialis – distinguishing is very hard as it requires investigating differences in penis shape!). As you can see the locations are not always glamorous, but if you zoom in you can still find beauty!

Flat periwinkles tend to be most active above-water, followed by the smaller Rough Periwinkle (Littorina saxatilis – below) with the Common Periwinkle (Littorina littorea – below that) only occasionally moving about.

Finally, a tiny species the Small Periwinkle (Littorina Melharaphe neritoides). Probably overlooked by most, as it is tiny (up to 8mm, usually smaller) and hidden between barnacles (or even nestled in empty barnacle cases) high on the shore.

* and no, I could not bring myself to go diving without a camera…

beachcombing after storm Darragh

Posted on by under beach combing, crustaceans, eggs, fish, iPhone, jellies, molluscs
Storm Darragh raged over the UK last weekend – which by itself was not great, apart from the fact that there was a chance interesting stuff had washed up on the beach! As the winds came from the North, we drove to the long beach at Perranporth on the north coast to have a look. It was nice to get sandblasted for a bit and admire the furious crashing waves and icy blue-grey sea. Find of the day was a dead Grey Triggerfish (Balistes capriscus), a generally more southern species that is increasingly observed in the UK. Some other finds in the gallery below (shot with an iPhone; which is actually a lot easier than changing a wide angle for a macro lens on a wet, sandy beach!). Among the finds, Goose Barnacles, a Small-Spotted Catshark eggcase, an unidentified blob and a cuttlefishbone of the Pink Cuttlefish (Rhombosepion orbignyanum).

Kennack Sands Shoredive

Posted on by under cnidarians, coral, diving, Macro

It was a glorious day last Sunday so time to get outdoors. After a pitstop at Windmill Farm (see here), we sat down at Kennack Sands Beach. I brought my scuba kit as I wanted to have a little looksee under water. I could not find any (shore)diving reports on this location, but I had snorkeled here a few times before and it looked interesting, a serpentine reef parting the beach in two. The tide was high and there was a bit of a swell so it took some swimming out – even so I never got any deeper than seven meters. I was a bit disappointed at first: the sands were shifting and there was no chance of finding interesting flatfish or molluscs there, the rocks has furbelows kelp on them but otherwise nothing too special. I then found a slightly deeper gully and took a closer look at the rocks and found loads of interesting little things, even two tiny dead man’s fingers soft coral!