David Fleetham / Thorny Oyster shell (Spondylus varians), Komodo, Indonesia.
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Juergen Freund / Bivalve mollusc lives in crevices in colonies of living hard corals. Only the the shell opening and mantle are visible, along with the minute eyes along its margin, West New Britain, Papua New Guinea.
01346628
Juergen Freund / Details of Thorny oyster (Spondylus varius) with "eyes" in its mantle edge near the shell, New Ireland, Papua New Guinea
01346484
Juergen Freund / Jewelmer Pearlfarm, Goldlip pearl oyster (Pinctada maxima) with golden pearl on beach, Palawan, Philippines, May 2009
01312936
Billy Black / Starfish in half Oyster (Lophia folium) shell lying on bed of seaweed. Pumpkin Island, Maine, USA.
01133974
Martin Gabriel / European mussel {Mytilus galloprovincialis} shell in sand. Europe.
01628677
Tony Wu / Striped poison-fang blenny mimic (Petroscirtes breviceps) male inside bivalve shell, guarding eggs laid by different females adhered to inside of shell. Shizuoka Prefecture, Honshu, Japan. June.
01623506
SCOTLAND: The Big Picture / Individual flame shell (Limaria hians) Loch Carron. Scotland, UK, January
01618464
Georgette Douwma / Electric fileclam / Disco clam (Ctenoides ales). West Papua, Indonesia. Indo-West Pacific.
01613860
Nick Upton / Kelp fly (Fucellia maritima) on Mussel (Mytilus edulis) shell exposed at low tide. Treyarnon Bay, Cornwall, England, UK. September.
01607617
Claudio Contreras / Fisherman collecting Pen Shell Clam (Atrina maura), San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, March
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Claudio Contreras / Diver Ramon Aguilar Villavicencio collecting Pen Shell Clam (Atrina maura), San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, March