| Lutraria lutraria (Linnaeus, 1758) Mud-dwelling mactra | 
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| photo by 
	Fenwick, David | 
| Family: | Mactridae (trough shells) | |||
| Max. size: | ||||
| Environment: | benthic; marine | |||
| Distribution: | Southeast Atlantic, Eastern Atlantic and the Mediterranean. | |||
| Diagnosis: | ||||
| Biology: | Common subtidally in mud (Ref. 437). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. 123251) | |||
| Threat to humans: | ||||
| Country info: |  | |||