The Pectinidae Family includes 278 species comprising 5 subfamilies (Pedinae (5 genus), Pectininae (5), Camptonectinae (5), Palliolinae (3), Pectinidae incertae sedis (1))
and 77 genus (Laevichlamys (17 species), Pecten (15), Mimachlamys (14), Hyalopecten (14), Talochlamys (11), Semipallium (11), ...)

Phylum      : Mollusca
 Class       : ⤷Bivalvia 
  Subclass    : ⤷Autobranchia 
   Infraclass  : ⤷Pteriomorphia 
    Order       : ⤷Pectinida 
     Superfamily : ⤷Pectinoidea 
      Family      : ⤷Pectinidae

Common name : scallops

Aspect : usually equilateral (beak central); valves nearly equal (equivalve) and convex; nearly symmetrical and fan-shaped; distinctive radial ribs extend from the hinge to the shell margin; anterior and posterior “wings” (auricles) prominent; byssal notch usually present on right valve; often brightly coloured (pink, orange, purple, yellow) with patterns

Feeding : filtration of microorganisms in suspension (phytoplankton, zooplankton, detritus, and organic particles)

Environment : worldwide from shallow coastal waters (5–20 m) to deep-sea environments (over 1,000 m) on soft substrates (sandy, gravel, or shell-hash bottoms); many species are free swimmers, using rapid valve clapping to escape predators