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Table 1 Descriptions of life habit classes in the Pectinidae

From: Convergent and parallel evolution in life habit of the scallops (Bivalvia: Pectinidae)

Life habit Description Genera included in study References
Nestle Settle and byssally attach to living Porites corals; coral grows around and permanently contains scallop Pedum [38, 61]
Cement Permanently attaches to hard or heavy substratum as new shell is generated Crassadoma, Talochlamys* [62]
Byssal attach Temporarily attaches to a substratum by byssus threads; can release and reorient Azumapecten, Brachtechlamys*, Caribachlamys, Chlamys, Coralichlamys, Cyclopecten, Excellichlamys, Gloripallium, Laevichlamys, Leptopecten, Mimachlamys*, Pascahinnites, Scaeochlamys, Semipallium, Spathochlamys, Talochlamys*, Veprichlamys, Zygochlamys [39]
Recess Excavates cavity in soft sediment; full/partial concealment Euvola, Mizuhopecten, Pecten, Patinopecten [39, 40]
Free-living Rests above soft sediment or hard substratum Aequipecten, Anguipecten, Annachlamys, Argopecten, Brachtechlamys*, Cryptopecten, Decatopecten, Delectopecten, Equichlamys, Mimachlamys*, Mirapecten, Nodipecten, Pseudamussium [39]
Gliding Able to swim > 5 m/effort; includes a level swimming phase with a glide component Adamussium, Amusium, "Amusium," Placopecten [4446]
  1. Species-specific classes are the predominant life habit exhibited by sexually mature individuals listed from least to most active. An asterisk indicates multiple life habits are exhibited within the genus.