New Zealand Seashore

DSC_1693 Oval trough clam, or ruheruhe (Spisula murchisoni) live animal with siphon extended. Buried in clean sand off very exposed coasts. Distinguished from the almost identical Large trough clam (S. discors) by fine traverse ridges on the lateral teeth of the hinge. Shell colour usually white with a straw coloured periostracum. Caroline Bay, Timaru *

733 / 2079

DSC_1693 Oval trough clam, or ruheruhe (Spisula murchisoni) live animal with siphon extended. Buried in clean sand off very exposed coasts. Distinguished from the almost identical Large trough clam (S. discors) by fine traverse ridges on the lateral teeth of the hinge. Shell colour usually white with a straw coloured periostracum. Caroline Bay, Timaru *

DSC 1693 Surf clam Mactra Spisula murchisoni ruheruhe Oval Large trough clam shell discors live animal siphon extended Taieri Mouth