# Pecten jacobaeus > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Pecten_jacobaeus > Markdown URL: https://mediated.wiki/source/Pecten_jacobaeus.md > Source: https://en.wikipedia.org/wiki/Pecten_jacobaeus > Source revision: 1353532719 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{short description|Species of mollusc}} {{Speciesbox | image = Pecten jacobaeus.jpg | image_caption = The upper (flat) valve of ''Pecten jacobaeus'' | fossil_range = {{fossil range|5.333|0|[Pliocene](/source/Pliocene) – Recent}} | genus = Pecten | species = jacobaeus | authority = ([Linnaeus](/source/Carl_Linnaeus), [1758](/source/10th_edition_of_Systema_Naturae)) | synonyms = *''Ostrea jacobaea'' [Linnaeus](/source/Carl_Linnaeus), [1758](/source/10th_edition_of_Systema_Naturae) *''Plicatula jacobaeus'' ([Linnaeus](/source/Carl_Linnaeus), [1758](/source/10th_edition_of_Systema_Naturae)) *''Vola jacobea'' ([Linnaeus](/source/Carl_Linnaeus), [1758](/source/10th_edition_of_Systema_Naturae)) }} '''''Pecten jacobaeus''''', the '''Mediterranean scallop''', is a [species](/source/species) of [scallop](/source/scallop), an edible saltwater scallop, a [marine](/source/marine_(ocean)) [bivalve](/source/bivalve) [mollusc](/source/mollusc) in the family [Pectinidae](/source/Pectinidae), the scallops.[http://www.marinespecies.org/aphia.php?p=taxdetails&id=394429 World Register of Marine species] [[File:Pectinidae - Pecten jacobaeus.JPG|thumb|250px|right|Fossil valve of ''Pecten jacobaeus'' from [Pliocene](/source/Pliocene) of Italy]] ==Description== ''Pecten jacobaeus'' usually reaches a length of about {{convert|120|-|140|mm}}, but the world record size reaches over 210 mm.[http://www.pectensite.com/Pecten%20jacobaeus.html 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 [plankton](/source/plankton)ic organisms and other floating food particles, which they obtain by filtering sea water with their [gill](/source/gill)s. ==Distribution== This species appears to be endemic to the [Mediterranean Sea](/source/Mediterranean_Sea), but it may be conspecific with ''[Pecten maximus](/source/Pecten_maximus)'', the great scallop, which has a larger distribution.{{cite journal |journal=Journal of the Marine Biological Association of the United Kingdom |volume=79 |issue=5 |year=1999 |pages=949–952 |title=Are ''Pecten maximus'' and ''Pecten jacobaeus'' different species? |first1=C. S. |last1=Wilding |first2=A. R. |last2=Beaumont |first3=J. W. |last3=Latchford|doi=10.1017/S0025315499001149 |bibcode=1999JMBUK..79..949W |s2cid=84757441 }} Although these two species are morphologically similar, they present distinguishing features. Fossils of ''Pecten jacobaeus'' first appear at the beginning of the [Pliocene](/source/Pliocene) and are quite common in the [Pliocene](/source/Pliocene) and [Pleistocene](/source/Pleistocene) deposits of Italy. ==Commercial value== Scallops of this species are collected commercially for human consumption using such techniques as the Rapido trawl.{{cite web |url=https://watermark02.silverchair.com/56-1-111.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA1cwggNTBgkqhkiG9w0BBwagggNEMIIDQAIBADCCAzkGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMJtM64OOapetW-wj2AgEQgIIDCrzd6yWXfxfOZYs9bVI1itC4VngUfx-nS3MFaBQb-gMpfpnJk6gIySC_JPB9nQQ41QAoIATC2UqRwyml5U3vsMZWEp38GZca8VfDt9jMTVo6BnMKBiouvp8tG71gydnCUbPRYVBRyW6W_Yo7L47QyRWGcUOhl2TpZOYXIJ7_xL46l3b1_52ufhJPxCONpAOHCttly2K5_FiKd_AfBlh5S2N6WKhJnrvkLy68SYEaccaPJjuAcWG28UVUTkWDrQOrjh07NFf11zUxJ5aL2AF-Pyh6KpNMiBJC70poFqmLV_GaM7kw5v2KlSMfiC93Gr0B81NuXQno2PkQOw4SPyPRr41mwX0m9vmdpOtKAdPtNZIO9_RwgLXGCS_cS8sVXbuiikmoU3DULiepEMp1mOH9L2WLdfLPJfAF1eC-PpqIc1HaSQHZQfccnnG6xgwGmJNEx1ty2yzHPXOrHiEwFMdfkri_z5TNJ6Ipii1FN0rqQSGYHAZM6ZB3e_7CnZiJeHcZa4ByoGtE0iqLcb2wIw9XaRe3J7S0sm-tJ_A4w8bRW30azlsNmhrbt7WXsDYZOQb70m3k_95HA90756E1BWO9X2hu1hqRmHuFOgwd1I5_q_TxSxGNP3Ilo53pJ89PIVRVntzPy5xOkFsrnfocijrMvq8YOuXdYitWTbvFaPb8wbXAPvA3ijRV5P4oG7mDwf5v3z8L0sbZpKENjyJ9lj_oyRLNrYwUBoccM_vdzbtuceZf9LKNNZzTNhBaDlpkK0ogdhDzfcLgOT5hDRgGHHF_-d9uMPjwzOdEWabUQ3hgIilTUX_MXk6fERIyhxR2a2fz4FWtb70KyVCAqgT3nCPsjNaFDBVU_M1RvDNOQaQMe2NKEIyb_ARBzcQzPpPGk-UnWBtQ7ZsjkFHxJ6RC3jMIlmAq4F63oftW1P-gld225HKnzIqAXv5zukORbRwDfNgwmuHX9BVLOeMunYaxsNcFwA_T-ibS1-j3CBb0p11Jh4yBezqxMDLguPyUmal59MAuEFophw5xr0GOrJg |title= The impact of Rapido trawling for scallops, Pecten jacobaeus (L.), on the benthos of the Gulf of Venice |first1=J. M. |last1=Hall-Spencer |first2=C. |last2=Froglia |first3=R. J. A. |last3=Atkinson |first4=P. G. |last4=Moore |publisher= ICES Journal of Marine Science |volume=56 |issue=1 |year=1999 |doi=10.1006/jmsc.1998.0424 |doi-access=free |bibcode=1999ICJMS..56..111H |access-date=January 3, 2026 |url-status=dead |archive-url= https://web.archive.org/web/20260103102131/https://watermark02.silverchair.com/56-1-111.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA1cwggNTBgkqhkiG9w0BBwagggNEMIIDQAIBADCCAzkGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMJtM64OOapetW-wj2AgEQgIIDCrzd6yWXfxfOZYs9bVI1itC4VngUfx-nS3MFaBQb-gMpfpnJk6gIySC_JPB9nQQ41QAoIATC2UqRwyml5U3vsMZWEp38GZca8VfDt9jMTVo6BnMKBiouvp8tG71gydnCUbPRYVBRyW6W_Yo7L47QyRWGcUOhl2TpZOYXIJ7_xL46l3b1_52ufhJPxCONpAOHCttly2K5_FiKd_AfBlh5S2N6WKhJnrvkLy68SYEaccaPJjuAcWG28UVUTkWDrQOrjh07NFf11zUxJ5aL2AF-Pyh6KpNMiBJC70poFqmLV_GaM7kw5v2KlSMfiC93Gr0B81NuXQno2PkQOw4SPyPRr41mwX0m9vmdpOtKAdPtNZIO9_RwgLXGCS_cS8sVXbuiikmoU3DULiepEMp1mOH9L2WLdfLPJfAF1eC-PpqIc1HaSQHZQfccnnG6xgwGmJNEx1ty2yzHPXOrHiEwFMdfkri_z5TNJ6Ipii1FN0rqQSGYHAZM6ZB3e_7CnZiJeHcZa4ByoGtE0iqLcb2wIw9XaRe3J7S0sm-tJ_A4w8bRW30azlsNmhrbt7WXsDYZOQb70m3k_95HA90756E1BWO9X2hu1hqRmHuFOgwd1I5_q_TxSxGNP3Ilo53pJ89PIVRVntzPy5xOkFsrnfocijrMvq8YOuXdYitWTbvFaPb8wbXAPvA3ijRV5P4oG7mDwf5v3z8L0sbZpKENjyJ9lj_oyRLNrYwUBoccM_vdzbtuceZf9LKNNZzTNhBaDlpkK0ogdhDzfcLgOT5hDRgGHHF_-d9uMPjwzOdEWabUQ3hgIilTUX_MXk6fERIyhxR2a2fz4FWtb70KyVCAqgT3nCPsjNaFDBVU_M1RvDNOQaQMe2NKEIyb_ARBzcQzPpPGk-UnWBtQ7ZsjkFHxJ6RC3jMIlmAq4F63oftW1P-gld225HKnzIqAXv5zukORbRwDfNgwmuHX9BVLOeMunYaxsNcFwA_T-ibS1-j3CBb0p11Jh4yBezqxMDLguPyUmal59MAuEFophw5xr0GOrJg|archive-date=January 3, 2026 }} ==Popular culture== In a Christian context, this species is traditionally associated with Saint James, also known as [James, son of Zebedee](/source/James%2C_son_of_Zebedee){{According to whom|date=July 2019}}, also known as Saint Jacob{{According to whom|date=July 2019}}, hence the specific name ''jacobaeus''{{Better source needed|date=July 2019}}. It is also known as the "Pilgrim's scallop",{{cite encyclopedia |url=http://www.britannica.com/EBchecked/topic/526414/scallop |encyclopedia=[Encyclopædia Britannica](/source/Encyclop%C3%A6dia_Britannica) |title=Scallop BIVALVE |author=((The Editors of Encyclopædia Britannica)) |date=November 26, 2008 |access-date=January 21, 2017}} as the shells were used by the pilgrims in the Middle Ages as a cup. ==See also== * [Symbolism of scallop shells](/source/Scallop) ==References== {{reflist}} * 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 {{ISBN|3-925919-11-2}} ==External links== {{Edible molluscs}} {{commercial molluscs}} {{Taxonbar|from=Q1757231}} Category:Pectinidae Category:Molluscs of the Mediterranean Sea Category:Bivalves described in 1758 Category:Animal taxa named by Carl Linnaeus {{Pectinidae-stub}} --- Adapted from the Wikipedia article [Pecten jacobaeus](https://en.wikipedia.org/wiki/Pecten_jacobaeus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Pecten_jacobaeus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.