Scallop shell
The shell of the scallop: the badge of pilgrims to the shrine of St James at Santiago de Compostela, and in many churches the shell used to pour the water of baptism.
Meaning
Tradition, as the Catholic Encyclopedia (1910) records it, holds that the body of St James the Greater was carried to Iria Flavia in north-west Spain and then to Compostela, which became one of the most famous places of pilgrimage in the world. Pilgrims there took scallop shells as their sign. The London Museum, which holds medieval pilgrim badges, says that “no one is quite sure why”. Pilgrims first bought real shells at the shrine and tied them to their bags; later they bought metal ones, and the scallop became the sign of pilgrimage itself. Pilgrims still come to the tomb of St James on foot, by bicycle or on horseback, and the cathedral’s Pilgrim’s Reception Office stamps their credentials and issues the certificate called the Compostela. The shell has a second use at the font. Fr John Hardon’s Modern Catholic Dictionary calls it an emblem of baptism since the twelfth century, a handy vessel once baptism was given by pouring.
Origin and history
Santiago de Compostela was the third pilgrimage of medieval Christendom after Jerusalem and Rome, the London Museum says, and by the eleventh century it drew pilgrims from all over Europe. The Catholic Encyclopedia (1911) says that the custom of bringing scallop shells back from Galicia as proof of the journey spread from Compostela to every kind of pilgrimage. Each shrine had its pilgrim sign, a badge sewn on the hat or hung round the neck: a scallop for Compostela, a bell or the saint’s head for Canterbury. In the thirteenth century Compostela had 100 licensed badge makers, and its makers set real jet scallops on souvenirs to prove where they came from, jet being a speciality of the town. A badge in the London Museum shows St James himself as a pilgrim, with hat, cloak, satchel and staff, standing in the shell. The knightly Order of St James took the shell, la venera, into its own sign, beside a red cross ending in a sword.
The shell at baptism
Hardon’s dictionary gives the shell three meanings in Catholic use: baptism, the pilgrim and St James, and the legend of St Augustine, who was told by a child that he could sooner empty the ocean with a shell than understand the Trinity; it adds that the shell is also one of the symbols of the Virgin Mary. Anglicans use it at the font too. A Church in Wales training guide describes a minister who writes each child’s name and the date on a scallop shell, pours the water of baptism from it, gives it to the family to keep, and talks with the family about being on a pilgrimage, a spiritual journey.
Related signs
The shell is poured over a Baptismal font. At Saint-Sulpice in Paris the Holy water and the aspergillum stoups are two giant clam shells.
Read next
- Next in Catholic symbolsKeys of St PeterTwo keys crossed in saltire, one gold and one silver: the keys of the kingdom of heaven that Christ promised to St Peter, and the emblem of the Holy See and the papacy.
- The same shape in Greek gods and their symbolsHermesThe Greek messenger god, herald of Zeus and guide of the dead to the underworld. Greek artists give him a broad-brimmed traveller’s hat, winged sandals and a herald’s staff, the kerykeion, which the Romans called the caduceus.
See also
Baptismal font, Papal tiara, Rosary, Immaculate Heart of Mary, Miraculous Medal, Marian cross.
Sources
- St. James the Greater, A. Camerlynck, “St. James the Greater”, The Catholic Encyclopedia, 1910, The Catholic Encyclopedia (1907–1912), via New Advent, Tradition of St. James in Spain
- Pilgrimages, Bede Jarrett, “Pilgrimages”, The Catholic Encyclopedia, 1911, The Catholic Encyclopedia (1907–1912), via New Advent, Compostela; pilgrim signs
- St James of Santiago de Compostela (pilgrim badge), London Museum collections, object 37427, “St James of Santiago de Compostela”, London Museum, Object description
- St James of Santiago de Compostela (jet scallop), London Museum collections, object 28953, “St James of Santiago de Compostela”, London Museum, Object description
- Order of Saint James of Compostela, Charles Moeller, “Order of Saint James of Compostela”, The Catholic Encyclopedia, 1912, The Catholic Encyclopedia (1907–1912), via New Advent, Order of Saint James of Compostela
- Shell (Catholic Dictionary), John A. Hardon, Modern Catholic Dictionary, “Shell”, via Catholic Culture, Catholic Culture (Fr John Hardon, Modern Catholic Dictionary), Shell
- Using scallop shells to talk about pilgrimage, St Padarn’s Institute (Church in Wales), life events ministry: baptisms, “Using scallop shells to talk about pilgrimage”, St Padarn’s Institute, Church in Wales, Using scallop shells to talk about pilgrimage
- Holy Water Fonts, Henri Leclercq, “Holy Water Fonts”, The Catholic Encyclopedia, 1910, The Catholic Encyclopedia (1907–1912), via New Advent, Holy Water Fonts
- Pilgrim’s Reception Office, Pilgrim’s Reception Office, Cathedral of Santiago de Compostela, Oficina del Peregrino (Cathedral of Santiago, Archdiocese of Santiago de Compostela), Home
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Researched, edited and approved by Rory Hansen before publishing. Last reviewed October 9, 2026. How we research
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