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   » » Wiki: Pecten Jacobaeus
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Pecten jacobaeus, the Mediterranean scallop, is a of , an edible saltwater scallop, a marine in the family , the scallops. World Register of Marine species


Description
Pecten jacobaeus usually reaches a length of about , but the world record size reaches over 210 mm. Pectensite The two valves have different shapes. The lower valve, with which the animal rests on the bottom, is very convex and light-colored, while the upper valve is flat and brown. They show 14 to 16 ribs (radial wrinkles) with a more or less rectangular cross section. The inside of the valves is porcelain-like smooth.

The mollusc has at the edge of the mantle many short tentacles, between which there are a total of 60 blue-millimeter lens eyes. By quickly closing of the two valves it can swim away several meters in case of danger.

These scallops eat organisms and other floating food particles, which they obtain by filtering sea water with their .


Distribution
This species appears to be endemic to the Mediterranean Sea, but it may be conspecific with , the great scallop, which has a larger distribution. Although these two species are morphologically similar, they present distinguishing features.

Fossils of Pecten jacobaeus first appear at the beginning of the and are quite common in the and deposits of Italy.


Commercial value
Scallops of this species are collected commercially for human consumption using such techniques as the Rapido trawl.


Popular culture
In a Christian context, this species is traditionally associated with Saint James, also known as James, son of Zebedee, also known as Saint Jacob, hence the specific name jacobaeus. It is also known as the "Pilgrim's scallop", as the shells were used by the pilgrims in the Middle Ages as a cup.


See also
  • Symbolism of scallop shells

  • C. Linnaeus. 1758. Systema Naturae per Regna Tria Naturae, secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Tomus I. Editio decima, reformata. Laurentii Salvii, Holmiae (Lars Salvius, Stockholm)
  • Guido T. Poppe und Y. Goto: European Seashells. Vol II (Scaphopoda, Bivalvia, Cephalopoda). 221 S., Verlag Christa Hemmen, Wiesbaden, 1993


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