periwinkle underwater at high tide
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Can you rule out Dog Whelk (Nucella lapillus)? That's what it looks like.
Thanks for your comment.Yes I think I can . Dog whelks have a more marble like shell. (Cannot describe) There are huge ones at the moment here about 10cm long. We always get a lot at this time of the year and then they seem to disappear.
Thsi was taken underwater and photo could have been better, perhaps lit with a torch.Only glad camera did not leak.
Best wishes Ann.
That's interesting. What coast are you? Never done any diving and so all the dog whelks I've seen are those between tides and those tend to be much smaller. 10cm sounds huge for a dog whelk and more the size of a common whelk. My (limited) experience here in South Devon is that dog whelks are found on the local rocks all year round. They vary a fair bit in texture and in colour (apparently the colour is the result of what they eat, white for barnacles and black for mussels). Ones here are mostly white (off white) but also some banded ones.
We are on east coast of ireland County Wicklow.On last dive saw a chiton but photo did not come out.?
Lat/Lng: 53.196649679278, -6.0899555683136
OS grid ref: SG269744
Taken underwater high tide. Lower middle shore when tide out