The Nautilus Log
Macridiscus donacinus

Macridiscus donacinus

NameMacridiscus donacinus
Scientific NameMacridiscus donacinus
FamilyVeneridae
GenusMacridiscus
Speciesdonacinus
Geographic DistributionEastern Atlantic (from the British Isles south to West Africa) and the Mediterranean Sea.
Average Size (mm)30
Identifying FeaturesSmooth surface with fine concentric growth lines, a distinct umbo, compressed shell profile, characteristic radial color patterns on the exterior, and a pearly white interior often with a pinkish/orange stain.
Dietfilter-feeder
Raritycommon
Author Citation(Linnaeus, 1758)

Description

A bivalve seashell characterized by its somewhat triangular to elongate-oval and compressed shape. The exterior typically displays a yellowish-brown to cream base color adorned with distinct darker brown radial bands or blotches. Fine concentric growth lines are visible on the shell's surface. The interior is smooth, pearly white, and often exhibits a pinkish or orange stain near the umbo. This marine species is found buried in sandy or muddy-sandy substrates.

Related Seashells