Pectinidae Fossil range: Triassic to Recent
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Ostreoida
Suborder:	Pectinina
Superfamily:	Pectinoidea
Family:	Pectinidae Rafinesque, 1815
Genera
See text.

The Pectinidae (from Latin pecten meaning comb) are a family of bivalve mollusks including the scallop and closely related to the clam and oyster. They live in most oceans of the world on banks of clean, firm sand close to the coast in waters up to 100 meters deep. They are hermaphrodite, and the male gonads mature first.

They can be attached by means of a filament they secrete, or are simply recumbent. Their valves can propel them through the water in case of need. There are numerous examples of large size in all of the oceans, and several species are of commercial importance.

The family Pectinidae is found in the fossil record from the Triassic period.^[1]

Taxonomy and list of genera

There are more than 30 genera and around 350 species in the Family Pectinidae. While species are generally well circumscribed, their attribution to subfamilies and genera is sometimes equivocal, and there is minimal information about phylogeny and relationships of the species, not least because most work has been based on adult morphology (Barucca et al., 2004).

Genera

• Subfamilia: Pectininae
  • Tribus: Aequipectinini
    • Aequipecten Fischer, 1886 (includes Rough scallop Aequipecten muscosus)
    • Argopecten Monterosato, 1889 (includes bay scallop, Argopecten irradians, Atlantic calico scallop Argopecten gibbus and Pacific calico scallop, Argopecten ventricosus)
    • Cryptopecten Dall, Bartsch & Rehder, 1938
    • Haumea Dall, Bartsch & Rehder, 1938
    • Volachlamys Iredale, 1939
  • Tribus: Decatopectinini

Annachlamys flabellata

• • • Anguipecten Dall, Bartsch & Rehder, 1938
    • Annachlamys Iredale, 1939
    • Bractechlamys Iredale, 1939
    • Decatopecten Sowerby, 1839
    • Excellichlamys Iredale, 1939
    • Flexopecten Sacco, 1897
    • Glorichlamys Dijkstra, 1991
    • Gloripallium Iredale, 1939
    • Juxtamusium Iredale, 1939
    • Mirapecten Dall, Bartsch & Rehder, 1938
    • Nodipecten Dall, 1898
  • Tribus: Pectinini
    • Amusium Bolten, 1798
    • Euvola Dall, 1898 (includes the Zigzag scallop, Euvola ziczac)
    • Minnivola Iredale, 1939
    • Pecten Müller, 1776 (includes the Great or King scallop, Pecten maximus, Japanese (sea) scallop, Pecten yessoensis, the New Zealand scallop, Pecten novaezealandiae, and the Ravenel or Round-rib scallop, Pecten raveneli)
    • Serratovola Habe, 1951
• Subfamilia: Camptonectinae
  • • Ciclopecten
    • Delectopecten Stewart, 1920
    • Hyalopecten Verrill, 1897
    • Pseudohinnites Dijkstra, 1989
• Subfamilia: Chlamydinae
  • Tribus: Adamussiini
    • Adamussium
  • Tribus: Austrochlamydini
    • Austrochlamys
  • Tribus: Chlamydini

Semipallium fulvicostatum

• • • Chlamys Röding, 1798
    • Coralichlamys Iredale, 1939
    • Equichlamys Iredale, 1929
    • Notochlamys Cotton, 1930
    • Pedum Bruguière, 1791
    • Semipallium Lamy, 1928
    • Veprichlamys Iredale, 1929
  • Tribus: Crassadomini
    • Caribachlamys
    • Crassadoma
  • Tribus: Fortipectinini
    • Mizuhopecten
    • Patinopecten Dall, 1898
  • Tribus: Mimachlamydini
    • Mimachlamys Iredale, 1929
    • Spathochlamys
  • Tribus: Palliolini
    • Mesopeplum Iredale, 1929
    • Palliolum
    • Placopecten
    • Pseudamussium
    • Lissopecten Verrill, 1897
• ?
  • • Bathypecten Schein-Fatton 1985
    • Catillopecten Iredale, 1939
    • Sinepecten Schein, 2006 ^[2]
    • Somalipecten Waller, 1986

Gallery

A live individual of Argopecten irradians, the Atlantic Bay scallop, photographed at the Marine Biological Laboratory in Woods Hole, Massachusetts	The great scallop, Pecten maximus, on the right, next to the native European oyster Ostrea edulis	Amusium cristatum from the Pliocene of Cyprus	Shell of a Pecten species with serpulid worm encrustation; Duck Harbor Beach on Cape Cod Bay, Wellfleet, Massachusetts
Placopecten magellanicus	Pedum spondyloideum from the North coast of East Timor

References

1. ^ Treatise on Invertebrate Paleontology Geological Society of America, Kansas, Part N, Vol. I (1969) p. N348.
2. ^ Mapress.com

• Barucca M, Olmo E, Schiaparelli S, Canapa A (2004) Molecular phylogeny of the family Pectinidae (Mollusca: Bivalvia)

External links

• Rotterdam Natural History Museum Natural History Museum Rotterdam - photos of Pectinidae shells