Only the "diaconicon", covered with a cross-groined vault, survives. The altar apse is semicircular, with semicircular niches for diaconicon and proskomedia. Another apsed chamber was added on the south side for the Diaconicon. Diaconicon and prothesis are collectively known as pastophoria. Smaller churches still have only one chamber containing the Altar, the Prothesis and the Diaconicon. These chapels are the prothesis and diaconicon. The prothesis and diaconicon are also apsed. Prothesis and diaconicon are collectively referred to as pastophoria. The writing ran, , "Diaconicon of Stephen the Protomartyr". The prothesis and diaconicon of the church are located by the apse.