Ptolemy makes it a port of the Unelli or Veneli, a Gallic nation who occupied part of Armorica.
D'Anville, who places Alauna at the Moutiers d'Alonne, fixes Crociatonum at Valognes, in the department of Manche.
Walckenaer places it at the village of Turqueville, west of Audouville-la-Hubert, at the entrance of the Bay of Isigny.
Some geographers, including the editors of the Barrington Atlas of the Greek and Roman World would fix Crociatonum at Carentan, west of Isigny-sur-Mer.
[2] Crociatonum appears to be a composite of Crocq (spur of land) i (of) aton (place name) um (town)[citation needed].