Nick Upton / Common prawns (Palaemon serratus) scavenging on a damaged Flat top shell (Gibbula umbilicalis) in a rockpool, Cornwall, England, UK, September.
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Nick Upton / Cushion star (Asterina gibbosa) moving in a rockpool near a Flat top shell (Gibbula umbilicalis) and a Common prawn (Palaemon serratus), Cornwall, England, UK, September.
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Nick Upton / Cushion star (Asterina gibbosa) moving in a rockpool near some Flat top shells (Gibbula umbilicalis), Cornwall, England, UK, September.
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Alex Hyde / Detail of Purple Topshell (Gibbula umbilicus) found washed up on a beach. Claigan, Isle of Skye, Inner Hebrides, Scotland, UK. April.
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Sue Daly / Pennant's Topshell (Gibbula pennanti) and Purple Topshell (Gibbula umbilicalis) sea shells on beach, showing difference between species, sea shells on beach, Sark, British Channel Islands.
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Sue Daly / Purple Topshell (Gibbula umbilicalis) sea shells on beach, Sark, British Channel Islands.
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Sue Daly / Purple Topshell (Gibbula umbilicalis) sea shells on beach, Sark, British Channel Islands.
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Nick Upton / Common brittle star (Ophiothrix fragilis) moving over floor of rockpool encrusted with red algae (Lithomnanion sp.) past Flat / Purple Top shell (Gibbula umbilicalis) low on a rocky shore, near Falmou...
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Nick Upton / Broad-clawed porcelain crab (Porcellana platycheles) hiding behind Gutweed (Ulva / Enteromorpha intestinalis) in a rockpool alongide a Flat / Purple top shell (Gibbula umbilicalis) and a Limpet (Patel...
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Nick Upton / Common brittle star (Ophiothrix fragilis) moving over floor of rockpool encrusted with red algae past Flat / Purple Top shell (Gibbula umbilicalis) low on a rocky shore, near Falmouth, Cornwall, UK, A...
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Nick Upton / Common brittle star (Ophiothrix fragilis) moving over floor of rockpool encrusted with red algae past Common periwinkles (Littorina littorea) and Flat / Purple Top shell (Gibbula umbilicalis) low on a...
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Nick Upton / Common brittle star (Ophiothrix fragilis) moving over floor of rockpool encrusted with red algae past Flat / Purple Top shell (Gibbula umbilicalis), Rough periwinkle (Littorina saxatilis) and Thick-li...
