This article continues my observations on the temple of Poseidon published in BSA xlv (1950) 78 ff. I begin with what I have recently noticed of the architectural detailing and decoration of this temple. Zschietzschmann (AA 1929, 223 f.) noticed a painted pattern of a very unexpected design on the inner taenia of the architrave. It is a well-kept rule in Greek architecture that the decoration of a moulding should echo its profile. So a taenia of rectangular section, assuming that it needed decoration at all, should have had some sort of Greek fret (for which see below). At Sunium, however, it has the Oriental Coil, an ornament which, in any case, is oftener seen on Ionic buildings than on Doric. In Doric, indeed, it is known to have established itself in only one position, on a certain type of flat clay cornice-revetment, probably invented in Corinth, found in a primitive form, and not quite, perhaps, in its canonical position, on the temple of Artemis at Corcyra, and thereafter stereotyped on the monotonous, sub-Corinthian clay cornice-revetments churned out in Sicily during the century down to 480 B.C. At Sunium one can only suppose that the Oriental Coil brought the Doric architrave of the side ptera into greater harmony with the Ionic of the east pteron.