Delectopecten alcocki
NameDelectopecten alcocki
Scientific NameDelectopecten alcocki
Common NameAlcock's Scallop
FamilyPectinidae
GenusDelectopecten
Speciesalcocki
Geographic DistributionIndo-Pacific, including the Indian Ocean (e.g., Andaman Sea, Bay of Bengal) and extending into the Pacific, typically in deep-water regions.
Habitatdeep-sea
Shell Shapebivalve
Average Size (mm)The depicted specimen is approximately 3-4 mm in diameter. Species within the genus Delectopecten can range up to 20-30 mm, but many are smaller.
Identifying FeaturesSmall size, thin and fragile translucent shell, orbicular shape, prominent concentric growth lamellae, fine radial sculpture creating a reticulate pattern, and small auricles. Its deep-sea habitat is also a key characteristic.
Dietfilter-feeder
Raritycommon
Author Citation(E. A. Smith, 1894)
Description
Delectopecten alcocki is a species of small, fragile, and translucent deep-sea scallop. Its shell is typically orbicular (circular to slightly oval) and compressed, featuring distinct concentric growth lines and often fine radial sculpture, which can create a subtle reticulate pattern. It possesses small auricles (ear-like projections) at the hinge line and is adapted to life in deep-water marine environments.
